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


Go Back   > >

Touring Have a dream to ride a bike across your state, across the country, or around the world? Self-contained or fully supported? Trade ideas, adventures, and more in our bicycle touring forum.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 03-10-06, 12:40 AM   #1
vosyer
WATERFORD22
Thread Starter
 
Join Date: Oct 2005
Location: Seattle
Bikes: Bilenky, Co-Motion, 1969 Paramount, Waterford Adventure Cycle, Waterford rs 22, 1980 Davidson etc.
Posts: 509
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Age old question

Well I am in the middle of a new bike build - unlike my other bikes this has 26 inch wheels. I am having issues with my cranks. Orginally 8 speed and I put nine speed chain rings on, and the spacing is just not there. So in my part box I have another crankset, some NOS Racing T Campy (8/9 speed) cranks 52/42/30, which normally I would not consider for a touring bike because of not enough bottom end, but because this is for a 26 inch bike wheel bike doesn't it actual have a lower end than the same chain ring combination on a 700c bike. This is a question for you gear head guys who count chain length. by the way I also going to be running Dura Ace barends and NOS xt 8 speed for the front and rear der.. Thanks Mike
vosyer is offline   Reply With Quote
Old 03-10-06, 01:44 AM   #2
Lotum
Tweaker-Tinkerer
 
Lotum's Avatar
 
Join Date: Oct 2005
Location: Not in La Jolla
Bikes: Mercian
Posts: 58
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by vosyer
(snip) because this is for a 26 inch bike wheel bike doesn't it actual have a lower end than the same chain ring combination on a 700c bike. (snip)
Using the same size chain ring and the same size rear sprocket, the gearing with a 26" rear wheel is (approximately; the exact factor depends on the exact tire sizes) 650/700 = 0.93 times the gearing with a 700c rear wheel (i.e., it's about 7 per cent lower). While this difference is big enough to be discernible, it is not really large enough to make your roadbike crankset appropriate for loaded touring.

The (only?) good thing about the emergence of mountain bikes was that they made sensible gearing easily available for loaded touring bikes.
Lotum 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 02:55 AM.