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Should I blow $160 on Compass 28mm Chinook Pass tires for my 1987 Bianchi?

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Should I blow $160 on Compass 28mm Chinook Pass tires for my 1987 Bianchi?

Old 05-18-18, 04:44 PM
  #151  
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Originally Posted by Sir_Name View Post


The bike looks great with the new tires. Judging by the small pic on my phone the rims appear to be H Plus Son TB 14s, yes? I’m curious what the measured tire width is on those (wider than vintage) rims. I have the same to go on a bike that should just fit a 28 mm true-width tire. Rubber is currently undecided.
I use both Compass Stampede Pass 32’s and Chinook Pass 28’s on 23mm wide tb14’s. After the first few hundred miles, they measure 33mm (65/75 psi) and 29mm (75/85 psi), respectively, at those pressures.

BTW, I use Stan’s rim tape and can often get those tires on and off without tools, or with just a bit of initial assistance coming off. They can be a slightly tight going on when brand new, but nothing dramatic is required.

Last edited by Dfrost; 05-18-18 at 04:49 PM.
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Old 05-18-18, 04:58 PM
  #152  
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Originally Posted by Fahrenheit531 View Post
I've also heard of installs with zero hassle though, so rim-specific maybe?
It must be rim specific. On my H+Son rims the Bon Jons practically mounted themselves. I was actually a little concerned about the loose fit until I aired them up. The bead seated itself, uniformly, without any manual manipulation required, at exactly max pressure listed in the tire. Pretty much an effortless process.
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Old 05-18-18, 05:27 PM
  #153  
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Originally Posted by Dfrost View Post

I use both Compass Stampede Pass 32’s and Chinook Pass 28’s on 23mm wide tb14’s. After the first few hundred miles, they measure 33mm (65/75 psi) and 29mm (75/85 psi), respectively, at those pressures.

BTW, I use Stan’s rim tape and can often get those tires on and off without tools, or with just a bit of initial assistance coming off. They can be a slightly tight going on when brand new, but nothing dramatic is required.

Thanks, the Chinook Pass were toward the top of my list. 29 should still be okay, but certainly good to know ahead of time.

My experience with (much larger 38 and 42) Compass tires has been that they go on easily using hands only on Velocity Synergy rims. Some tire/rim combos are just easier.
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Old 05-19-18, 10:08 AM
  #154  
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Originally Posted by SquidPuppet View Post
It must be rim specific. On my H+Son rims the Bon Jons practically mounted themselves. I was actually a little concerned about the loose fit until I aired them up. The bead seated itself, uniformly, without any manual manipulation required, at exactly max pressure listed in the tire. Pretty much an effortless process.
For the record, it was your thread over in SS/FG that finally pushed me over the edge. Which makes you my wife's new favorite BF member. Well, except for me (as far as I know haha).
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Old 05-19-18, 10:35 AM
  #155  
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Originally Posted by Fahrenheit531 View Post
For the record, it was your thread over in SS/FG that finally pushed me over the edge. Which makes you my wife's new favorite BF member. Well, except for me (as far as I know haha).
Tell her I'm happy that she is happy.

My klunker currently has 559 x 54mm tires. They are 100% bald slicks so they are smooth and quiet. But, they are wire bead with very thick sidewalls and tread, so they are super stiff and weigh 83.9 kilos. My birthday is in August and I'm going to treat myself to a pair of the Rat Trap Pass Extra Lights. I'm sure that between the weight loss of 370 grams PER tire, and the wonderful construction, I'll be laughing my butt off on the first few rides. 2.3 inches of Compass quality volume and I'm going to be floating.... and floating fast. Can't wait.
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Old 05-19-18, 10:48 AM
  #156  
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Originally Posted by SquidPuppet View Post
...and weigh 83.9 kilos.
I'm surprised you can even lift the bike.
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Old 05-19-18, 11:02 AM
  #157  
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Originally Posted by Wileyone View Post
Clinchers sound like such a pain when compared to Tubulars.

Sometimes they are, especially when you are fixing a flat on the road. A quick change is one place where tubulars win.

I was at an LBS today and saw some really fat tubulars. They looked like cyclocross tires, with little knobs.
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Old 05-19-18, 11:10 AM
  #158  
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It is now time to experimentally determine whether I managed to get all the soap off of the rims.
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Old 05-19-18, 11:24 AM
  #159  
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Originally Posted by davester View Post
I'm surprised you can even lift the bike.
I go to the gym every other Tuesday.
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Old 05-19-18, 02:39 PM
  #160  
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Originally Posted by SquidPuppet View Post
I go to the gym every other Tuesday.
Tho it's probably the riding around on Varsinentals all the time that does the trick.
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Old 05-19-18, 02:47 PM
  #161  
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Originally Posted by Lascauxcaveman View Post
Tho it's probably the riding around on Varsinentals all the time that does the trick.
I think it's the lifting them high over my head to hang them from hooks in the garage that develops the deltoids.
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Old 05-20-18, 08:04 PM
  #162  
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I found the comments about difficulty in mounting the Compass tires interesting. My Compass Chinook Pass Standards went on Alex23 rims with tape and brand new Velocity Dyads with veloplugs very easily. I did not even need tire irons. From the thread, it may be that older vintage rims are harder to mount. Many years ago, I had a bike with Super Champion clincher rims that were very hard to mount Michelin 50 and the original Clement clinchers.

The Compass were far, far easier than when I first installed the Continental GP4000S-II tires on the Alex23s. That took two set of tire irons and a second person, and foreign expletives. I did find though that when I put the GP4000S-II back on the original rims it was very easy.

I will say clinchers have really improved over the years.
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Old 05-22-18, 01:50 AM
  #163  
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Originally Posted by wgscott View Post
It is now time to experimentally determine whether I managed to get all the soap off of the rims.
i have used Compass Bon Jon Pass 700C x 35 tires on the last two Eroica California rides and riding for the last two years. They were hard to mount on older Mavic MA3 rims, but partly because of cloth Velox rim tape that caught the sticky rubber bead. I had to have the local LBS mount and true them up, making sure the bead mounting line was exposed correctly. Once up though, they were very very nice to ride on. At 210 lbs plus 24-26 pounds fully loaded on my Italvega Super Speciale, they are handling 240 lbs overall. I run them at 55F/60R and the ride is supple without much harshness. Some have suggested 5-10 pounds LESS! Per tire.

my first set had over 1500 miles on it till its first flat, was reasonably easy to get off, repaired the tube, but likely pinched it going back on. Replaced it with a new tube and no problems since, but since I dirtied the sidewalls (rear tire) after takin off - on 3 times, I elected to order a new set for Eroica. Again had the LBS install, this time using some smooth and slick Stan's rim tape which made it a bit easier but the tech still had a time of it. Incidentally, he added some Stan's sealant too so we'll see how these hold up.

i still need to clean the old pair's sidewalls and then remount to some other rims. I'll swap the tires front to back as they still have plenty of tread left. Overall, I'm very pleased with the Compass tires and they were the talk and a little envy of some at Eroica "wow, those look big!" And "probably a good setup for gravel, assuming you have the clearance".

one thing I did notice, when the new tire set was installed, the tech super cleaned my rims, which made them all shiny and clean. Once I re-installed them, the brakes were grippy as hell but also squealed both front and rear like crazy. These were on Campagnolo NR sidepulls with Kool Stop Black pads, broken in with 1700 miles on them. After two rides and 75 miles of this, I reangled the toe-in with a 0.75-1.0mm shim at the front of the pad holders and all of the squeal was gone. Braking was still very good but not as extremely grippy as before, but easily modulated. I'd probably use increments of .25mm shims next time to see if I can get more initial pad to bite without the squeal and vibration. As the pads leave some residue on the brake tracks, we'll see how well they hold up.

The last two pics are as the bike was set up for Eroica with a Campy NR derailleur with Rally Long cage, 14-28 Suntour Freewheel and Campagnolo modified triple with 52-42-28 (74bcd triple mod).







Last edited by mech986; 05-22-18 at 02:08 AM.
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Old 05-27-18, 09:17 PM
  #164  
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Nice looking bikes!
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Old 06-28-18, 09:37 AM
  #165  
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Originally Posted by Bill in VA View Post
Nice looking bikes!
Way to kill a seven-page thread!
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Old 06-28-18, 09:56 AM
  #166  
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Originally Posted by wgscott View Post
Way to kill a seven-page thread!
I see the reports of its death are highly exaggerated. You responded!
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Old 06-28-18, 10:03 AM
  #167  
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The Heisenberg Uncertainty Principle applies to BF threads. Who knew?

PS: I should have bought the Compass tires.

PPS: I did buy the Tire Jack @noglider suggested.
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Old 06-28-18, 11:19 PM
  #168  
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Originally Posted by wgscott View Post
PPS: I did buy the Tire Jack @noglider suggested.
As did I, and it works exactly as advertised, saving my skin - literally.
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Old 06-29-18, 08:28 AM
  #169  
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On my Pacenti rims, the tire jack does more than that. It makes mounting possible. Without it or something similar, I would not be able to get my tires on. Using levers, I have a 50% chance of pinching the tube.
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Old 07-06-18, 06:19 PM
  #170  
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Originally Posted by wgscott View Post
About seven hours after mounting, and inflating to 80PSI, they measure 27.55mm wide. Subjectively, they look less voluminous than the 120 TPI Clement Strada 28mm tires I took off.

I need to figure out what pressure to ride these. For a 200lb payload, I don't want them too squishy.
Today for some reason I thought I might try pumping the rear tire to 90 PSI. (The max is supposedly 115.) A few minutes later, the tire blew right off the H+Son TB14 rim. It was a bit loud and in my face, as it was situated fairly near my face.

Fortunately, the tire was undamaged, and I have now decided that 70PSI should be absolutely fine.

For a tire that was so hard to mount in the first place, it sure as **** unmounted itself without much of a struggle.

At least getting it back on (with a new tube) was a bit easier this time around (and also thanks to @noglider for that tool recommendation).

By the time I got it all reassembled, it was too hot to go for a ride.
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Old 07-06-18, 06:21 PM
  #171  
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I wonder if it was all that goddamn soap I had to use to mount the tires the first time around?
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Old 07-07-18, 12:07 PM
  #172  
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Old 07-07-18, 01:09 PM
  #173  
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Has anyone in these parts run the Chinook Pass tires tubeless? I’m thinking of trying that on a set of Pacenti brevet rims.
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Old 07-07-18, 03:16 PM
  #174  
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Originally Posted by wgscott View Post
Today for some reason I thought I might try pumping the rear tire to 90 PSI. (The max is supposedly 115.) A few minutes later, the tire blew right off the H+Son TB14 rim. It was a bit loud and in my face, as it was situated fairly near my face.

Fortunately, the tire was undamaged, and I have now decided that 70PSI should be absolutely fine.

For a tire that was so hard to mount in the first place, it sure as **** unmounted itself without much of a struggle.

At least getting it back on (with a new tube) was a bit easier this time around (and also thanks to @noglider for that tool recommendation).

By the time I got it all reassembled, it was too hot to go for a ride.
Are you absolutely sure you didn't have a small fold of inner tube caught under the tire bead? Easy to do, especially when mounting is a struggle, and it's one of the best ways to wedge a tire right off a rim, causing an explosive blowout.
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Old 07-07-18, 03:54 PM
  #175  
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Originally Posted by palincss View Post
Are you absolutely sure you didn't have a small fold of inner tube caught under the tire bead? Easy to do, especially when mounting is a struggle, and it's one of the best ways to wedge a tire right off a rim, causing an explosive blowout.
It very easily could have happened. I trashed the first inner-tube trying to get the tire on. I guess it was better to find out in the garage than on the road. I deflate and re-inflate a couple of times to try to avoid that kind of scenario, but it is hardly fool-proof.
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