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


Go Back   > >

Mountain Biking Mountain biking is one of the fastest growing sports in the world. Check out this forum to discuss the latest tips, tricks, gear and equipment in the world of mountain biking.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 06-13-05, 09:38 AM   #1
brooklyn
Senior Member
Thread Starter
 
brooklyn's Avatar
 
Join Date: Aug 2003
Location: Brooklyn
Bikes:
Posts: 639
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Crank Arm Length

Is there a noticable difference between a 170mm and 175mm crank arm lenth? If so how will this change my riding?
brooklyn is offline   Reply With Quote
Old 06-13-05, 10:00 AM   #2
darkmother
Get the stick.
 
darkmother's Avatar
 
Join Date: Nov 2004
Location: Toronto, ON
Bikes: 12 Y.O. Litespeed MTB, IRO Jamie Roy fixie, Custom Habanero Ti 'Cross, No name SS MTB, Old school lugged steel track bike (soon)
Posts: 1,543
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
You can feel the difference, especially when you first change over. All in all, it is a pretty small change-only 3% difference. It will give you slightly more torque, but be a little bit tougher to spin fast. Personally, I ride both 170 and 175 on different bikes, and there is not that much functional difference.
darkmother is offline   Reply With Quote
Old 06-13-05, 10:19 AM   #3
Habu2112
Go Like Hell
 
Habu2112's Avatar
 
Join Date: Mar 2005
Location: Wichita, KS
Bikes: Merckx, S-Works, Voodoo
Posts: 87
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Mother is right. A shorter crank arm is easier to spin. A longer crank gives more torque. I have a 172.5 on my road and a 175 on my mountain bike. Also, most smaller frame bikes have shorter cranks, most larger frame bikes have longer cranks (from the factory).
Habu2112 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 11:00 PM.