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


Go Back   > >

Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 06-08-09, 07:32 PM   #1
bnelson
Senior Member
Thread Starter
 
Join Date: Feb 2006
Location: eldridge iowa
Bikes: lynskey cross 29 er teesdale custom snow bike
Posts: 206
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
road crank on mnt bike

If both are 68 mm is it possible?
bnelson is offline   Reply With Quote
Old 06-08-09, 07:43 PM   #2
darksiderising
Senior Member
 
Join Date: Mar 2007
Location: Rohnert Park, CA
Bikes: Pake track, Soma DoubleCross, LeMond Etape, Maruishi RoadAce 303
Posts: 1,248
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Is is very possible. It is also possible that using the same bottom bracket (spindle) will result in the chainrings hitting/rubbing the chainstay, so you may need to get a bottom bracket with a longer spindle.
darksiderising is offline   Reply With Quote
Old 06-08-09, 07:44 PM   #3
LarDasse74
Guest
 
Join Date: Jul 2008
Location: Grid Reference, SK
Bikes: I never learned to ride a bike. It is my deepest shame.
Posts: 3,769
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Yes. Possible. Standard road cranks with a 130mm bolt circle diamter (BCD) will give you awfully tall gears for mtn riding. The newer 110mm BCD 'compact' cranks use the same chainrings as outer and middle mtn cranks from years ago.

Also, the chainline might be a couple mm off, but probably to no great consequence.
LarDasse74 is offline   Reply With Quote
Old 06-08-09, 08:07 PM   #4
relyt
Senior Member
 
Join Date: Jan 2004
Bikes:
Posts: 619
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
You could do it, but I don't know why you would want to.
relyt is offline   Reply With Quote
Old 06-09-09, 04:11 AM   #5
Garthr
Senior Member
 
Join Date: Oct 2008
Location: where
Bikes: Franklin Frames Custom, Rivendell Bombadil
Posts: 1,289
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by bnelson View Post
If both are 68 mm is it possible?
General questions get general advice. Of course it's possible(so is flying to the moon BTW), but the degree to which it works depends on the frame clearance for the chainrings and arms, so choice of crank matters.
Garthr is offline   Reply With Quote
Old 06-09-09, 04:24 AM   #6
bnelson
Senior Member
Thread Starter
 
Join Date: Feb 2006
Location: eldridge iowa
Bikes: lynskey cross 29 er teesdale custom snow bike
Posts: 206
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
thanks
bnelson 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 03:01 PM.