Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Long Distance Competition/Ultracycling, Randonneuring and Endurance Cycling Do you enjoy centuries, double centuries, brevets, randonnees, and 24-hour time trials? Share ride reports, and exchange training, equipment, and nutrition information specific to long distance cycling. This isn't for tours, this is for endurance events cycling

User Tag List

Reply
 
Thread Tools Search this Thread
Old 03-11-12, 05:56 PM   #1
MileHighMark
Old. Slow. Happy.
Thread Starter
 
MileHighMark's Avatar
 
Join Date: Jan 2010
Location: Boulder County, CO
Bikes:
Posts: 1,798
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
New Rig (Rawland rSogn 650B)

Still need to install fenders and a front rack.



http://www.gravelbike.com/?p=754
MileHighMark is offline   Reply With Quote
Old 03-12-12, 07:43 AM   #2
Hydrated
Reeks of aged cotton duck
 
Hydrated's Avatar
 
Join Date: Oct 2007
Location: Middle Georgia, USA
Bikes: 2008 Kogswell PR mkII, 1976 Raleigh Professional, 1996 Serotta Atlanta, 1984 Trek 520, 1979 Raleigh Comp GS, 1995 Trek 950, 1979 Raleigh DL-1 Tourist
Posts: 1,175
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Looks like a nice ride!

What front rack are you going to use?
Hydrated is offline   Reply With Quote
Old 03-12-12, 08:29 AM   #3
MileHighMark
Old. Slow. Happy.
Thread Starter
 
MileHighMark's Avatar
 
Join Date: Jan 2010
Location: Boulder County, CO
Bikes:
Posts: 1,798
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Hydrated View Post
Looks like a nice ride!

What front rack are you going to use?
Nitto M12.
MileHighMark is offline   Reply With Quote
Old 03-12-12, 04:24 PM   #4
unterhausen
Randomhead
 
Join Date: Aug 2008
Location: Happy Valley, Pennsylvania
Bikes:
Posts: 14,585
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
the rear derailleur is pretty interesting, might have to get one of them
unterhausen is offline   Reply With Quote
Old 03-13-12, 08:49 AM   #5
Andrey
Senior Guest
 
Andrey's Avatar
 
Join Date: Jan 2008
Location: Hudson Valley, NY
Bikes: cyclocross-Raleigh, road-Cannondale, Fausto Coppi, Jamis Endura.
Posts: 175
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Looks nice.
I have a question though.
What is the advantage of a 650b bike over 700c bike? I ride 58-59 size frames and I was thinking of modifying/replacing my long distance bike all together, but a 650b bike never entered my thoughts.

Another question about this built. How do 10 speed(or 11) Campy shifters work with a Shimano 9-speed cassette?

Last edited by Andrey; 03-13-12 at 08:52 AM.
Andrey is offline   Reply With Quote
Old 03-13-12, 09:13 AM   #6
MileHighMark
Old. Slow. Happy.
Thread Starter
 
MileHighMark's Avatar
 
Join Date: Jan 2010
Location: Boulder County, CO
Bikes:
Posts: 1,798
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Andrey View Post
Looks nice.
I have a question though.
What is the advantage of a 650b bike over 700c bike? I ride 58-59 size frames and I was thinking of modifying/replacing my long distance bike all together, but a 650b bike never entered my thoughts.

Another question about this built. How do 10 speed(or 11) Campy shifters work with a Shimano 9-speed cassette?
A 650B wheel with a large (cushy) tire is about the same OD as a 700x23C wheel/tire combo. Vintage Bicycle Quarterly has lots of info on 650B wheels/tires. The narrowest tires I run are 32mm, so I figured it made sense to give 650B a try.

Campy 10s shifters can be paired with 8s Shimano w/o any adapters.
Campy 11s shifters can be paired with 9s Shimano w/o any adapters.

On my bike I use the da Vinci-modified SRAM rear derailleur for compatibility between 10s Campy shifters and 9s Shimano.
MileHighMark is offline   Reply With Quote
Old 03-13-12, 09:47 AM   #7
Andrey
Senior Guest
 
Andrey's Avatar
 
Join Date: Jan 2008
Location: Hudson Valley, NY
Bikes: cyclocross-Raleigh, road-Cannondale, Fausto Coppi, Jamis Endura.
Posts: 175
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by MileHighMark View Post
Campy 11s shifters can be paired with 9s Shimano w/o any adapters.
That is nice to know. How is the shifting quality with the compromise?
Andrey is offline   Reply With Quote
Old 03-13-12, 09:49 AM   #8
Andrey
Senior Guest
 
Andrey's Avatar
 
Join Date: Jan 2008
Location: Hudson Valley, NY
Bikes: cyclocross-Raleigh, road-Cannondale, Fausto Coppi, Jamis Endura.
Posts: 175
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Is the size of the tire (32 and above) and cushy ride the only advantages to use a 650b tire over 700c bike?
Andrey is offline   Reply With Quote
Old 03-13-12, 09:56 AM   #9
MileHighMark
Old. Slow. Happy.
Thread Starter
 
MileHighMark's Avatar
 
Join Date: Jan 2010
Location: Boulder County, CO
Bikes:
Posts: 1,798
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Andrey View Post
That is nice to know. How is the shifting quality with the compromise?
I've not tried it, so I can't say. I do know of several folks, however, who have done the Campy 10s/Shimano 8s combo with excellent results.
MileHighMark is offline   Reply With Quote
Old 03-13-12, 09:57 AM   #10
MileHighMark
Old. Slow. Happy.
Thread Starter
 
MileHighMark's Avatar
 
Join Date: Jan 2010
Location: Boulder County, CO
Bikes:
Posts: 1,798
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Andrey View Post
Is the size of the tire (32 and above) and cushy ride the only advantages to use a 650b tire over 700c bike?
All things being equal, a 650B wheel will be lighter and stronger than a 700C wheel.
MileHighMark is offline   Reply With Quote
Old 03-13-12, 12:43 PM   #11
ThermionicScott 
Gratuitous glib and snark
 
ThermionicScott's Avatar
 
Join Date: Aug 2011
Location: CID
Bikes: 1991 Bianchi Eros, 1964 Armstrong, 1988 Diamondback Ascent, 1988 Bianchi Premio, 1987 Bianchi Sport SX, 1980s Raleigh mixte (hers)
Posts: 13,414
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 134 Post(s)
Quote:
Originally Posted by Andrey View Post
Is the size of the tire (32 and above) and cushy ride the only advantages to use a 650b tire over 700c bike?
The smaller diameter of the wheel also helps with toe overlap and weight, compared with a 700C/29er of the same tire width. It can lower the bottom bracket and top tube slightly, but those shouldn't be one's chief reasons for doing the switch...

P.S. That bike looks sharp. Bet it's a blast on long gravel rides!
__________________
Quote:
Originally Posted by chandltp View Post
There's no such thing as too far.. just lack of time
RUSA #7498

Last edited by ThermionicScott; 03-13-12 at 12:54 PM.
ThermionicScott is online now   Reply With Quote
Old 03-13-12, 01:54 PM   #12
MileHighMark
Old. Slow. Happy.
Thread Starter
 
MileHighMark's Avatar
 
Join Date: Jan 2010
Location: Boulder County, CO
Bikes:
Posts: 1,798
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
A 650B wheel also seems to "spin up" quicker than a 700C wheel, in my limited experience.
MileHighMark is offline   Reply With Quote
Old 03-14-12, 04:02 AM   #13
Road Fan
Senior Member
 
Road Fan's Avatar
 
Join Date: Apr 2005
Location: Ann Arbor, MI
Bikes:
Posts: 12,290
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 24 Post(s)
Quote:
Originally Posted by Andrey View Post
Is the size of the tire (32 and above) and cushy ride the only advantages to use a 650b tire over 700c bike?
Andrey, I'm working on a 650b build, too, a Terraferma frame/fork. 650b should give a cushier ride, better rim protection, and better handling over grooves, slots, and bumps in the road. Overall it helps make a bike equally usable on smooth pavement, "real world" pavement, and dirt/gravel roads. You can add tire girth and air volume in a 700c format, but the wheel will become huge, affecting the layout of a frame. The fork length and chainstay length of a 650 bike are not much different from a narrow tire 700c. What is different is width and brake shoe positioning.
Road Fan is offline   Reply With Quote
Old 03-14-12, 05:45 AM   #14
thebulls
Senior Member
 
Join Date: Dec 2003
Bikes: SOMA Grand Randonneur, Gunnar Sport converted to 650B, Rivendell Rambouillet, '82 Trek 728, '84 Trek 610, '85 Trek 500, C'Dale F600, Burley Duet, Lotus Legend
Posts: 985
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Road Fan View Post
Andrey, I'm working on a 650b build, too, a Terraferma frame/fork. 650b should give a cushier ride, better rim protection, and better handling over grooves, slots, and bumps in the road. Overall it helps make a bike equally usable on smooth pavement, "real world" pavement, and dirt/gravel roads. You can add tire girth and air volume in a 700c format, but the wheel will become huge, affecting the layout of a frame. The fork length and chainstay length of a 650 bike are not much different from a narrow tire 700c. What is different is width and brake shoe positioning.
I've been riding 650B on brevets for about a year, either 650Bx35 (Soma B-Lines or Pacenti Pari-Motos) or 650Bx42 (Grand Bois Hetre). These tires are all high enough quality to roll with about the same resistance as any other good quality tire (e.g. Grand Bois Cypres, Conti Grand Prix 4 seasons, Panaracer Stradius, ...). But they are much more plushy to ride on, so they help a lot with hand numbness and fatigue on long rides. And they grip the road extremely well, while being much more forgiving about the occasional pothole or whatever that you didn't notice. They do not change toe overlap or bottom bracket height relative to 700Cx23 because they have the same outside diameter. However, relative to really big 700C tires (35, 37 ...) they feel faster and handle better. The really big 700C tires I have tried make the bike handle like a truck. I doubt that I'll ever go back to 700 except for short rides like my daily commute.

Nick
thebulls is offline   Reply With Quote
Old 03-17-12, 10:06 PM   #15
MileHighMark
Old. Slow. Happy.
Thread Starter
 
MileHighMark's Avatar
 
Join Date: Jan 2010
Location: Boulder County, CO
Bikes:
Posts: 1,798
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)


I'm really pleased at how well the bike/wheels smooth out rough and broken pavement. Smoooooth.
MileHighMark is offline   Reply With Quote
Old 03-19-12, 08:29 PM   #16
thebulls
Senior Member
 
Join Date: Dec 2003
Bikes: SOMA Grand Randonneur, Gunnar Sport converted to 650B, Rivendell Rambouillet, '82 Trek 728, '84 Trek 610, '85 Trek 500, C'Dale F600, Burley Duet, Lotus Legend
Posts: 985
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by MileHighMark View Post


I'm really pleased at how well the bike/wheels smooth out rough and broken pavement. Smoooooth.
Hi, Mark,

Do you know if you'd be able to run a triple on the Rawland?

Thanks,

Nick
thebulls is offline   Reply With Quote
Old 03-19-12, 09:46 PM   #17
MileHighMark
Old. Slow. Happy.
Thread Starter
 
MileHighMark's Avatar
 
Join Date: Jan 2010
Location: Boulder County, CO
Bikes:
Posts: 1,798
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by thebulls View Post
Hi, Mark,

Do you know if you'd be able to run a triple on the Rawland?

Thanks,

Nick
I suspect you could. Probably best to ask Rawland directly, though.
MileHighMark is offline   Reply With Quote
Old 04-09-12, 06:48 PM   #18
cobrabyte
one life on two wheels
 
cobrabyte's Avatar
 
Join Date: Jul 2008
Location: St. Petersburg, FL
Bikes:
Posts: 2,556
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Hi I am considering one of these frames. I would like to ask what size frame you have and your height/inseam

I usually ride a 60cm seat tube and 57-59 cm top tube with a 110mm stem

Thanks in advance
cobrabyte is offline   Reply With Quote
Old 04-09-12, 08:49 PM   #19
MileHighMark
Old. Slow. Happy.
Thread Starter
 
MileHighMark's Avatar
 
Join Date: Jan 2010
Location: Boulder County, CO
Bikes:
Posts: 1,798
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by cobrabyte View Post
Hi I am considering one of these frames. I would like to ask what size frame you have and your height/inseam

I usually ride a 60cm seat tube and 57-59 cm top tube with a 110mm stem

Thanks in advance
Mine is the M/L. Saddle height is approx 73cm from center of BB to top of saddle (measured on centerline of seat tube/post). Stem is 80mm.
MileHighMark is offline   Reply With Quote
Old 04-12-12, 07:49 PM   #20
cobrabyte
one life on two wheels
 
cobrabyte's Avatar
 
Join Date: Jul 2008
Location: St. Petersburg, FL
Bikes:
Posts: 2,556
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
That helps a great deal, thank you
cobrabyte is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 11:15 PM.