Go Back  Bike Forums > Bike Forums > Classic & Vintage
Reload this Page >

Should I convert Schwinn Paramount from 27" wheels to 700c or 650b?

Notices
Classic & Vintage This forum is to discuss the many aspects of classic and vintage bicycles, including musclebikes, lightweights, middleweights, hi-wheelers, bone-shakers, safety bikes and much more.

Should I convert Schwinn Paramount from 27" wheels to 700c or 650b?

Old 05-07-21, 08:27 PM
  #1  
univega.duder
Senior Member
Thread Starter
 
Join Date: Aug 2014
Posts: 62
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 29 Post(s)
Liked 9 Times in 5 Posts
Should I convert Schwinn Paramount from 27" wheels to 700c or 650b?

I recently purchased a 1986 Schwinn Paramount (it's the touring version with rack mounts). The bike has 27" wheels and I'm struggling to find supple tire options. It's currently equipped with 27 x 1 1/4 wire bead Continental Gatorskins. I've used the Swift Sand Canyon tires in the past but they currently seem unavailable. I'm considering converting to 700c wheels or 650b to allow for suppler and wider high quality tires.

Today I tested a 700c wheelset that had 38mm Barlow Pass tires from Rene Herse and while they don't rub anywhere on the frame they seem uncomfortably close in places. I think 35mm tires might be more realistic. Or perhaps a 650b wheelset would allow for more options? I will need new brakes in either case as the current dura ace brakes weren't long enough to reach on the 700c and strangely they don't quite reach on the existing 27" front rim without hitting the tire. I'd love to get any opinions or suggestions. I've included a few pics. Thanks!



I tried fitting 700c 38mm Barlow pass tires and are too snug

Very tight clearance between 38mm tire and brake bridge. I'll need longer reach brakes and perhaps 35mm tires will fit?

27 x 1/4 gatorskin tires aren't nearly nice to ride as the the 700c Barlow Pass tires.

Strangely the dura ace brakes are not quite long enough to reach the existing 27" rims without hitting the tire. I don't know if the bike was incorrectly spec'd? I'm considering new brakes (tektro 559 long reach or perhaps Paul brakes) or BDop Offset Brake Pad Holders to make the front brake functional while I figure out what to do next.

Last edited by univega.duder; 05-07-21 at 08:47 PM.
univega.duder is offline  
Old 05-07-21, 08:28 PM
  #2  
cudak888 
www.theheadbadge.com
 
cudak888's Avatar
 
Join Date: Sep 2005
Location: Southern Florida
Posts: 26,813

Bikes: https://www.theheadbadge.com

Mentioned: 81 Post(s)
Tagged: 0 Thread(s)
Quoted: 1656 Post(s)
Liked 2,029 Times in 1,153 Posts
I've never heard of the Waterford-era Paramount touring frames having 27" wheels in the first place.

Go 700C if you want to try it in its original state, or go right ahead and tinker with 650B if you want some big rubber.

-Kurt
__________________








Last edited by cudak888; 05-08-21 at 08:47 AM.
cudak888 is offline  
Likes For cudak888:
Old 05-07-21, 08:33 PM
  #3  
stevel610 
Senior Member
 
Join Date: Aug 2006
Location: Valley Forge: Birthplace of Freedom
Posts: 1,123

Bikes: Novara Safari, CAAD9, WABI Classic, WABI Thunder

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 305 Post(s)
Liked 328 Times in 173 Posts
Sounds like 700c is the way to go. Particularly now with limited tire availability for 27".
__________________
Be watchful, stand firm in the faith, act like men, be strong. Let all that you do be done in love.
stevel610 is offline  
Likes For stevel610:
Old 05-07-21, 08:39 PM
  #4  
Pcampeau
Senior Member
 
Join Date: Aug 2017
Location: Minneapolis
Posts: 627

Bikes: 1968 Raleigh Super Course. 1972 Raleigh Professional, 1975 Raleigh International, 1978 Raleigh Professional, 1985 Raleigh Prestige, 1972 Schwinn Paramount, 1980 Schwinn Voyageur 11.8, 1978 Schwinn Varsity, 1976 Peugeot PX10, 1972 Motobecane Le Champ

Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 207 Post(s)
Liked 283 Times in 162 Posts
In this case Iíd go with 700c or 650b. I ride 27Ē tires, and like it, on many of my mid level and low end 70s and 80s bikes but my best stuff gets 700c, so that I have the best tire selection possible to make my best riders as enjoyable as possible. Certainly your your 86 Paramount qualifies for the best tires you can give it.

Last edited by Pcampeau; 05-07-21 at 08:48 PM.
Pcampeau is offline  
Likes For Pcampeau:
Old 05-07-21, 09:03 PM
  #5  
Dylansbob 
2k miles from the midwest
 
Dylansbob's Avatar
 
Join Date: Feb 2005
Location: Washington
Posts: 1,673

Bikes: ~'75 Colin Laing, '80s Schwinn SuperSport 650b, ex-Backroads ti project...

Mentioned: 15 Post(s)
Tagged: 0 Thread(s)
Quoted: 396 Post(s)
Liked 636 Times in 310 Posts
I'd go 650b x 38. I doubt you'd get anything bigger. The problem will be chainstay width.

Thanks to some co-op find GB Hectres, I've been doing tire clearance checks on several frames and finding nothing will hold them, @650Bx42.

So far the negative list is: Raleighs,'72 Pro, '73 International, 70s Bob Jackson, '75 Colin Laing, early '80s Trek 420, '87 Schwinn SuperSport,

The maybe pile has a cracked '72 Gitane TdF, a late '80s Benotto 200 that is almost safe to ride.

Here's the SuperSport with 38mm CdVs and Bluemels plastic fenders off of a British 3spd.

kinda shows tightness.
Dylansbob is offline  
Likes For Dylansbob:
Old 05-07-21, 09:09 PM
  #6  
RiddleOfSteel
Master Parts Rearranger
 
RiddleOfSteel's Avatar
 
Join Date: Mar 2015
Location: Seattle, WA
Posts: 4,115

Bikes: 1989 Davidson Impulse - 1985 Trek 620 - 1982 Trek 728 - 2014 Trek FX 7.3 - 1989 Trek 420 - 2008 Trek 1.5 - 1986 Univega Viva Sport

Mentioned: 207 Post(s)
Tagged: 0 Thread(s)
Quoted: 1343 Post(s)
Liked 1,283 Times in 677 Posts
Your 7400 brake calipers are short reach (39-49mm). You will need standard reach (47-57mm) brake calipers to reach 700C wheels. Many options in single pivot, but if you want better stopping on the whole, Shimano R650 (Ultegra level) dual pivot calipers are out there, as well as Tektro R539s. I've run both on bikes that needed it and they worked very well.

Great looking and super rare (AFAIK) Paramount tourer!
RiddleOfSteel is offline  
Likes For RiddleOfSteel:
Old 05-07-21, 09:23 PM
  #7  
Fahrenheit531 
No Chain Lube Preference
 
Fahrenheit531's Avatar
 
Join Date: Aug 2013
Location: Tucson, AZ
Posts: 3,896

Bikes: Schwinn Volare ('78); Raleigh Competition GS ('79)

Mentioned: 29 Post(s)
Tagged: 0 Thread(s)
Quoted: 699 Post(s)
Liked 455 Times in 245 Posts
700c would give you more brake options than 650b I'd imagine. For just getting out there and riding, 700c x 32 (Compass) has treated me very well.

If you're taking about loaded touring I dunno.
__________________
A race bike in any era is a highly personal choice that at its "best" balances the requirements of fit, weight, handling, durability and cost tempered by the willingness to toss it and oneself down the pavement at considerable speed. ~Bandera
Fahrenheit531 is online now  
Likes For Fahrenheit531:
Old 05-08-21, 05:11 AM
  #8  
Pompiere
Senior Member
 
Pompiere's Avatar
 
Join Date: Nov 2005
Location: NW Ohio
Posts: 2,889

Bikes: 1984 Miyata 310, 1986 Schwinn Sierra, 2011 Jamis Quest, 1980 Peugeot TH8 Tandem, 1992 Performance Parabola, 1987 Ross Mt. Hood, 1988 Schwinn LeTour, 1988 Trek 400T, 1981 Fuji S12-S LTD

Mentioned: 19 Post(s)
Tagged: 0 Thread(s)
Quoted: 332 Post(s)
Liked 254 Times in 177 Posts
I am the former owner of a Paramount Touring frame. Prior to selling it, the prospective buyer asked about tire clearance, so I slipped in a pair of 700x37 Pasela tires that I had on another bike. They actually measure 35 mm wide.


fork clearance

fork clearance

chain stay

rear brake bridge
Pompiere is offline  
Old 05-08-21, 05:37 AM
  #9  
beicster 
Senior Member
 
Join Date: Jan 2017
Location: Berea, KY
Posts: 947
Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 288 Post(s)
Liked 145 Times in 110 Posts
I am the current owner of the frame Pompiere mentioned above. I recently stuck a set of Pasela 38's in the frame just to see whether they would fit. They did with barely enough room to be comfortable with. They actually measure about 36mm though. I can easily go with 32's and fenders or 35's without fenders. I would not go 650b on the frame as they were made with 80mm of bottom bracket drop. You might be comfortable with that but I was not.
__________________
Andy

Last edited by beicster; 05-08-21 at 05:44 PM.
beicster is offline  
Likes For beicster:
Old 05-08-21, 10:06 AM
  #10  
pcb 
Senior Member
 
pcb's Avatar
 
Join Date: Jan 2012
Location: Joisey
Posts: 1,477
Mentioned: 90 Post(s)
Tagged: 0 Thread(s)
Quoted: 373 Post(s)
Liked 608 Times in 276 Posts
Buncha stuff to sort out here, but tl;dr has pretty much already been covered: Frame was designed for 32-35mm 700c tires with 47-57mm calipers, and trying to go wider with 700c or 650b will only result in heartache. Well, indigestion maybe.

1. I don't know this for a fact, but I'd guess as an '86 build, this was designed as a high-performance Sport-Tour frame, not a full-bore Touring frame. Built for 700c wheels, probably intended for actual 32mm tire width. If it were full-on touring, you'd have cantis, wider tire clearance, dual fender/rack eyelets front/rear. Never intended to have 27" wheels, that's something the previous owner cooked up.

2. From the look of it, the correct-fit longer-reach 47-57mm/49-59mm calipers will have the brake blocks at mid-slot, which pretty much means true 38mm 700c tires won't ever fit due to caliper clearance. Doesn't matter much what's happening at the stays/blades at that point, they could be wide enough for 48mm tires, your calipers will limit width to 32-35mm actual, depending on your tolerance for tightness.

3. The single-pivot calipers you have now give better tire clearance than the dual-pivot calipers you're considering, which may make 35mm actual width tires almost as tight as the 38s you've already tried if you go dual pivot. If you want maximum under-caliper clearance, find longer-reach single-pivots, or go Paul. The Paul calipers will actually sit either even with or above the bottom of the brake bridge/crown. Understand that means bigger $$$, and you're now needing cable stops front/rear, and you'll have to be dealing with center-pull transverse cables/yokes. And it'll be heavier, if that matters to you.

I generally only go to Paul centerpulls these days if I'm running fenders and really need to max out my tire clearance. Otherwise, a little too much bother/weight/cost.

I guess, fwiw, ee brake calipers also have awesome tire clearance, but that's in an altogether strasopheric price range. Best clearance, lightest weight, highest cost.

4. When you're working with tire fit/clearance like this, you're best off using calipers to get actual width measurements, since actual width on any given rim can vary quite a bit between different brands/models. Even for the same mfr.

5. I don't know exactly why, but there aren't a whole lot of nice supple 35-700c tires. Lotsa 32s, a fair number of 38s, but at 35mm marked you've got Compass/Rene Herse and Panaracer Gravel Kings. The more road-oriented tires tend to max out at 32mm, and Soma goes from an undersized 33mm-marked tire straight to 38mm. I don't find the Gravel Kings quite as nice as RH, but I don't like paying RH prices. I'd really like to see a Conti/V'flex/Soma SV in 35-700c.

6. As beicster mentioned directly above, the frame likely has a fairly low bb, and doing a 650b conversion will drop the bb even further, risking pedal strikes on corners. With a 650b conversion, your pinch point will move from the calipers to the stays/blades, and I'll guess even 38-650b will be tight. So you won't be able to go much wider than you can with 700c, and your bb height would drop by almost 10mm, which will give you a very low-slung sled.

Paul clearance:
__________________
Fuggedaboutit!
pcb is offline  
Likes For pcb:
Old 05-08-21, 12:24 PM
  #11  
rccardr 
aka: Dr. Cannondale
 
rccardr's Avatar
 
Join Date: Jul 2009
Posts: 6,904

Bikes: Bob Jackson, Wizard, Pegoretti Duende, Merckx ProSLX, Pelizzoli, Cannondale ST, Schwinn Tempo, Davidson Sport Custom, Canyon Endurace, Richard Sachs, Davidson Discovery

Mentioned: 196 Post(s)
Tagged: 0 Thread(s)
Quoted: 1710 Post(s)
Liked 1,545 Times in 652 Posts
All good points.
As a side note, Iíve found Tektro R539ís to mount up pretty much at the brake bridge/fork crown level, thus yielding maximum vertical clearance when the relief lever is closed.
Thatís what I used when mounting 38mm Gravel Kings to the Davidson, replacing 32ís.
Interestingly, when the relief lever is open (as it would be when removing the wheel, for example) one arm drops down and makes it harder to re-install the wheel. To get around this, I remove one brake pad and leave the relief lever in the closed position. Only takes a moment to reinstall the brake pad and one can reinstall the wheel when fully inflated.
__________________
Hard at work in the Secret Underground Laboratory...
rccardr is offline  
Likes For rccardr:
Old 05-08-21, 01:10 PM
  #12  
ctak
Senior Member
 
ctak's Avatar
 
Join Date: Sep 2019
Posts: 345
Mentioned: 17 Post(s)
Tagged: 0 Thread(s)
Quoted: 140 Post(s)
Liked 223 Times in 123 Posts
Continental GP5000 700x32 would be my recommendation, with medium/long reach calipers as RiddleOfSteel suggested. I've been quite pleased with the R650s + 32mm Contis on my '86 Trek 700, which has similar frame clearances.
ctak is offline  
Likes For ctak:
Old 05-08-21, 05:42 PM
  #13  
beicster 
Senior Member
 
Join Date: Jan 2017
Location: Berea, KY
Posts: 947
Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 288 Post(s)
Liked 145 Times in 110 Posts
The 38's I mounted fit with DiaCompe 610 center pulls. They give great clearance and are nowhere near as expensive as Paul's. I could fit 32's and fenders with Tektro 539's with no issues.

Paramount at the time allowed the customer to spec cantilever mounts on this bike if they wanted.
__________________
Andy
beicster is offline  
Likes For beicster:
Old 05-08-21, 05:45 PM
  #14  
beicster 
Senior Member
 
Join Date: Jan 2017
Location: Berea, KY
Posts: 947
Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 288 Post(s)
Liked 145 Times in 110 Posts
@thumpism has a Paramount touring bike as well. He may have some thoughts on this.
__________________
Andy
beicster is offline  
Likes For beicster:
Old 05-08-21, 06:17 PM
  #15  
panzerwagon 
Garage tetris expert
 
panzerwagon's Avatar
 
Join Date: May 2016
Location: Texas Hill Country
Posts: 402

Bikes: Univega Specialissima, Univega Gran Touring

Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 159 Post(s)
Liked 184 Times in 95 Posts
Originally Posted by pcb View Post
5. I don't know exactly why, but there aren't a whole lot of nice supple 35-700c tires. Lotsa 32s, a fair number of 38s, but at 35mm marked you've got Compass/Rene Herse and Panaracer Gravel Kings. The more road-oriented tires tend to max out at 32mm, and Soma goes from an undersized 33mm-marked tire straight to 38mm. I don't find the Gravel Kings quite as nice as RH, but I don't like paying RH prices. I'd really like to see a Conti/V'flex/Soma SV in 35-700c.
Have you tried the Panaracer Pasela Protite? (the folding bead skinwall versions are available in 700-32/35/38 widths, among others)
Would you consider the Gravel Kings more supple?
panzerwagon is offline  
Old 05-08-21, 07:04 PM
  #16  
thumpism 
Bikes are okay, I guess.
 
thumpism's Avatar
 
Join Date: Jan 2015
Location: Richmond, Virginia
Posts: 8,134

Bikes: Waterford Paramount Touring, Giant CFM-2, Raleigh Sports 3-speeds in M23 & L23, Schwinn Cimarron oddball build, Marin Palisades Trail dropbar conversion, Nishiki Cresta GT

Mentioned: 58 Post(s)
Tagged: 0 Thread(s)
Quoted: 2344 Post(s)
Liked 1,432 Times in 1,019 Posts
As beicster mentioned, I do have an '84 Paramount Touring built with 700C Super Champ #58 rims and Specialized Touring (remember those?) 32C tires. Fenders. I've never tried wider tires on it and 35C was the widest available for the longest time. Although touring was pretty strong in the '80s, no one foresaw the explosion of equipment we now have and other contemporary bikes with more features or clearance weren't a threat. I recall being surprised how little tire clearance this frame has but it was built as a full touring frame. Cantis were an option when ordering but I chose not to get them. I had to send the fork back because they neglected to add the lowrider bosses.

I've considered trying 650B but have not made a move even to gather the parts. Very low priority.

Let me know if you want specific photos of my rig.

I believe pastorbobnlnh also has a Paramount Touring from the era and might be willing to chime in.

Last edited by thumpism; 05-08-21 at 07:17 PM.
thumpism is offline  
Old 05-09-21, 07:17 PM
  #17  
univega.duder
Senior Member
Thread Starter
 
Join Date: Aug 2014
Posts: 62
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 29 Post(s)
Liked 9 Times in 5 Posts
Originally Posted by RiddleOfSteel View Post
Your 7400 brake calipers are short reach (39-49mm). You will need standard reach (47-57mm) brake calipers to reach 700C wheels. Many options in single pivot, but if you want better stopping on the whole, Shimano R650 (Ultegra level) dual pivot calipers are out there, as well as Tektro R539s. I've run both on bikes that needed it and they worked very well.

Great looking and super rare (AFAIK) Paramount tourer!
Thanks for the suggestions! I found some Tektro 559 calipers (47-57mm reach) that I think I may try. The Shimano R650 look like a great option as well.
univega.duder is offline  
Old 05-09-21, 07:26 PM
  #18  
univega.duder
Senior Member
Thread Starter
 
Join Date: Aug 2014
Posts: 62
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 29 Post(s)
Liked 9 Times in 5 Posts
Originally Posted by beicster View Post
I am the current owner of the frame Pompiere mentioned above. I recently stuck a set of Pasela 38's in the frame just to see whether they would fit. They did with barely enough room to be comfortable with. They actually measure about 36mm though. I can easily go with 32's and fenders or 35's without fenders. I would not go 650b on the frame as they were made with 80mm of bottom bracket drop. You might be comfortable with that but I was not.
Thanks for the advice about the 80mm bottom bracket drop. I'm going to skip the 650b for now - I'd like to avoid any chance of pedal strike. I think I'll try 700c with some 35's and see how it goes.

Originally Posted by Pompiere View Post
I am the former owner of a Paramount Touring frame. Prior to selling it, the prospective buyer asked about tire clearance, so I slipped in a pair of 700x37 Pasela tires that I had on another bike. They actually measure 35 mm wide.
Thanks for sharing these photos - this is super helpful.
univega.duder is offline  
Old 05-09-21, 07:55 PM
  #19  
univega.duder
Senior Member
Thread Starter
 
Join Date: Aug 2014
Posts: 62
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 29 Post(s)
Liked 9 Times in 5 Posts
Originally Posted by pcb View Post
Buncha stuff to sort out here, but tl;dr has pretty much already been covered: Frame was designed for 32-35mm 700c tires with 47-57mm calipers, and trying to go wider with 700c or 650b will only result in heartache. Well, indigestion maybe.

1. I don't know this for a fact, but I'd guess as an '86 build, this was designed as a high-performance Sport-Tour frame, not a full-bore Touring frame. Built for 700c wheels, probably intended for actual 32mm tire width. If it were full-on touring, you'd have cantis, wider tire clearance, dual fender/rack eyelets front/rear. Never intended to have 27" wheels, that's something the previous owner cooked up.

2. From the look of it, the correct-fit longer-reach 47-57mm/49-59mm calipers will have the brake blocks at mid-slot, which pretty much means true 38mm 700c tires won't ever fit due to caliper clearance. Doesn't matter much what's happening at the stays/blades at that point, they could be wide enough for 48mm tires, your calipers will limit width to 32-35mm actual, depending on your tolerance for tightness.

3. The single-pivot calipers you have now give better tire clearance than the dual-pivot calipers you're considering, which may make 35mm actual width tires almost as tight as the 38s you've already tried if you go dual pivot. If you want maximum under-caliper clearance, find longer-reach single-pivots, or go Paul. The Paul calipers will actually sit either even with or above the bottom of the brake bridge/crown. Understand that means bigger $$$, and you're now needing cable stops front/rear, and you'll have to be dealing with center-pull transverse cables/yokes. And it'll be heavier, if that matters to you.

I generally only go to Paul centerpulls these days if I'm running fenders and really need to max out my tire clearance. Otherwise, a little too much bother/weight/cost.

I guess, fwiw, ee brake calipers also have awesome tire clearance, but that's in an altogether strasopheric price range. Best clearance, lightest weight, highest cost.

4. When you're working with tire fit/clearance like this, you're best off using calipers to get actual width measurements, since actual width on any given rim can vary quite a bit between different brands/models. Even for the same mfr.

5. I don't know exactly why, but there aren't a whole lot of nice supple 35-700c tires. Lotsa 32s, a fair number of 38s, but at 35mm marked you've got Compass/Rene Herse and Panaracer Gravel Kings. The more road-oriented tires tend to max out at 32mm, and Soma goes from an undersized 33mm-marked tire straight to 38mm. I don't find the Gravel Kings quite as nice as RH, but I don't like paying RH prices. I'd really like to see a Conti/V'flex/Soma SV in 35-700c.
Wow - I can't thank you enough for this extremely thoughtful reply! Thanks for sharing your bike wisdom :-) I'm planning to try a 700c wheelset with 35mm Rene Herse Bon Jon Pass tires and the tektro 559 brakes. The Paul brakes look beautiful but I'm a little daunted by the cost especially considering I'll be purchasing a new wheelset. And it seems doubtful I'll be adding fenders to this bike.
Do you think it's worth reusing the dura-ace hubs in the existing wheels? My inclination is to get a brand new wheelset - I've been eyeing the Pacenti Brevet wheelset as an option.
univega.duder is offline  
Old 05-09-21, 07:57 PM
  #20  
univega.duder
Senior Member
Thread Starter
 
Join Date: Aug 2014
Posts: 62
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 29 Post(s)
Liked 9 Times in 5 Posts
Originally Posted by ctak View Post
Continental GP5000 700x32 would be my recommendation, with medium/long reach calipers as RiddleOfSteel suggested. I've been quite pleased with the R650s + 32mm Contis on my '86 Trek 700, which has similar frame clearances.
Great suggestion - I've been curious to try the GP5000 and I feel like that's probably inline with what the bike was designed for.
univega.duder is offline  
Old 05-09-21, 08:12 PM
  #21  
pcb 
Senior Member
 
pcb's Avatar
 
Join Date: Jan 2012
Location: Joisey
Posts: 1,477
Mentioned: 90 Post(s)
Tagged: 0 Thread(s)
Quoted: 373 Post(s)
Liked 608 Times in 276 Posts
Happy to help a fellow tire-width conundrum sufferer.

beicster's post mentioning Dia-Compe 610 centerpulls made me realize I neglected to mention that there are a whole bunch of vintage and even some modern centerpulls that will give you clearance like the Paul's, for a lot less $$$. They also do make the whole project a bit more complex, with extra cable hangers and other stuff needed. But you can get centerpull clearance for less than Paul pricing.

Relacing the Dura-Ace hubs is more labor-intensive than buying a new set of wheels, and not necessarily a whole lot cheaper even you build them yourselves, if you go for new rims and spokes. I like the Pacenti Brevet rims, have them on both a vintage 700c and a vintage 650b build. I think the complete Pacenti wheelsets looks great, wouldn't hesitate to use a set on something I wasn't trying to keep/look vintage. Using the Dura-Ace will keep it more period-correct, if that's a plus for you. No right/wrong answer in my book, matter of taste/intention.

Originally Posted by univega.duder View Post
Wow - I can't thank you enough for this extremely thoughtful reply! Thanks for sharing your bike wisdom :-) I'm planning to try a 700c wheelset with 35mm Rene Herse Bon Jon Pass tires and the tektro 559 brakes. The Paul brakes look beautiful but I'm a little daunted by the cost especially considering I'll be purchasing a new wheelset. And it seems doubtful I'll be adding fenders to this bike.
Do you think it's worth reusing the dura-ace hubs in the existing wheels? My inclination is to get a brand new wheelset - I've been eyeing the Pacenti Brevet wheelset as an option.
__________________
Fuggedaboutit!
pcb is offline  
Old 05-09-21, 08:22 PM
  #22  
pcb 
Senior Member
 
pcb's Avatar
 
Join Date: Jan 2012
Location: Joisey
Posts: 1,477
Mentioned: 90 Post(s)
Tagged: 0 Thread(s)
Quoted: 373 Post(s)
Liked 608 Times in 276 Posts
I ride some GP5000/32-700c tires, very nice tires. In my experience they get to the marked 32mm width on wider, modern rims, with inner widths of 19mm+. So they'll be at around 32mm on the Pacenti Brevets you mentioned earlier, but if you wind up with a narrower set of rims, which is more likely if you go with a vintage wheelset, they'll be a little undersized.

You didn't specifically mention maybe using vintage/narrower rims, I just brought it up because rim width does directly impact tire width, and when you're trying to maximize tire width, you're better off nailing down the rim width before picking/buying the tires. Pretty frustrating to spend $50-$80/+ on a pair of tired you expect to be, say, 32mm wide, but on the rim you picked they turn out to only be 30mm, or they're 33-34mm and don't fit.

Originally Posted by univega.duder View Post
Great suggestion - I've been curious to try the GP5000 and I feel like that's probably inline with what the bike was designed for.
__________________
Fuggedaboutit!
pcb is offline  
Likes For pcb:
Old 05-09-21, 08:30 PM
  #23  
univega.duder
Senior Member
Thread Starter
 
Join Date: Aug 2014
Posts: 62
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 29 Post(s)
Liked 9 Times in 5 Posts
Originally Posted by thumpism View Post
As beicster mentioned, I do have an '84 Paramount Touring built with 700C Super Champ #58 rims and Specialized Touring (remember those?) 32C tires. Fenders. I've never tried wider tires on it and 35C was the widest available for the longest time. Although touring was pretty strong in the '80s, no one foresaw the explosion of equipment we now have and other contemporary bikes with more features or clearance weren't a threat. I recall being surprised how little tire clearance this frame has but it was built as a full touring frame. Cantis were an option when ordering but I chose not to get them. I had to send the fork back because they neglected to add the lowrider bosses.

I've considered trying 650B but have not made a move even to gather the parts. Very low priority.

Let me know if you want specific photos of my rig.

I believe pastorbobnlnh also has a Paramount Touring from the era and might be willing to chime in.
thumpism I'd love to see any photos of your 84 paramount touring. I'd be very curious to see how you built it up. It seems quite odd to me that my '86 bike has 27" wheels. I can only guess what the previous owner had in mind.
univega.duder is offline  
Old 05-09-21, 11:04 PM
  #24  
pcb 
Senior Member
 
pcb's Avatar
 
Join Date: Jan 2012
Location: Joisey
Posts: 1,477
Mentioned: 90 Post(s)
Tagged: 0 Thread(s)
Quoted: 373 Post(s)
Liked 608 Times in 276 Posts
I haven't ridden the Pasela Protites, so I can't say from actual experience. But the Gravel King Slick 35-700c were only around 315g on my scale, while the 35-700c Pasela Protites are 450g according to Panaracer spec. I'm far from a tire expert, but I don't think that weight difference is all in the rubber, I suspect the Pasela casing is also heavier. So not likely as supple as the Gravel Kings.

The Gravel King at 315g is really pretty light, close to the Compass Bon Jon Pass/35 Extralights, and lighter than the standard BJP/35s. The GK are tubeless compatible, my BJP aren't, and the GK sidewalls feel stiffer in hand even though they're light. I've got very few miles on them at this point, so I don't know if I'll notice any difference in the ride. I'm 100% tubes still at this point.

Originally Posted by panzerwagon View Post
Have you tried the Panaracer Pasela Protite? (the folding bead skinwall versions are available in 700-32/35/38 widths, among others)
Would you consider the Gravel Kings more supple?
__________________
Fuggedaboutit!
pcb is offline  
Likes For pcb:
Old 05-10-21, 06:51 AM
  #25  
mcgregorj 
Senior Member
 
Join Date: Apr 2006
Posts: 101
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 28 Post(s)
Liked 69 Times in 22 Posts
One option for cheaper, decent wheels - I just picked up a 126mm rear 700c set from Velomine for my 27" Motobecane. $170 for Sun CR-18 rims, Formula hubs, double-butted spokes is cheaper than I can build them for...
__________________
Current project: 1976 Motobecane Grand Record restomod
mcgregorj is offline  

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright © 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.