Have questions or want to discuss cycling? Join Now or Sign In to participate in the BikeRide community.


Crank arms different!
#1
I'm busy getting my bike ready to cycle across Spain in a few weeks - and now have to look after a friends bike too (one he's borrowed)!

The bike is a Trek 4400 and the Crank is: Shimano M341 42/32/22.

Just starting work on when i see that the left arm is completely different to the right and is rubbing against the chainstay!
I presume this is a different arm completely....

My question is what can I replace it with? Do i have to buy a full crank set and does it have to be the Shimano M341 - not sure I can get one of those locally..
  Reply
#2
Hi Toby,

Sounds like you do have the wrong left crank arm installed. It would be ideal to get the matching Shimano M341. Here's the Shimano PDF for that crank set.

That said, if you can find a similar left crank arm with the same length and frame clearance you could use it with no problems. I'm guessing your right crank is either a 170mm or 175mm (should say on the backside of the crank arm).
  Reply
#3
(05-11-2011, 03:39 PM)Alex Ramon Wrote:  Hi Toby,

Sounds like you do have the wrong left crank arm installed. It would be ideal to get the matching Shimano M341. Here's the Shimano PDF for that crank set.

That said, if you can find a similar left crank arm with the same length and frame clearance you could use it with no problems. I'm guessing your right crank is either a 170mm or 175mm (should say on the backside of the crank arm).

Fair play Alex,
Thats great help,
thanks a million
  Reply


Possibly Related Threads...
Thread
Author
Replies
Views
Last Post
 
35,962
07-19-2021, 12:00 AM
Last Post: rbx
 
11,378
02-13-2015, 11:21 AM
Last Post: muddy fox
 
13,043
12-14-2011, 04:07 PM
Last Post: GeorgeET
 
24,388
10-20-2010, 01:54 PM
Last Post: Darrenjs92ni
 
10,042
08-24-2010, 04:46 AM
Last Post: trevgbb

Forum Jump:

[-]
10 Latest Posts
Gandolfi "Super" model 1985-86 racing bi...
Today 02:34 PM
How I used to clean my bike
Today 10:43 AM
Continued learnings from bikepacking
Today 04:50 AM
What are the pros and cons of using a 26...
Today 04:46 AM
I got new Tioga FASTR X Tires (Ask Me An...
Today 01:31 AM
Cassette shifting Problem
Today 01:06 AM
Attack // Force tire style narrow front ...
Today 12:55 AM
The great thing about trikes
Yesterday 11:10 AM
Doctors are Prescribing Cycling
Yesterday 10:40 AM
How to improve cycling endurance? I've h...
06-30-2025 06:27 PM

[-]
Join BikeRide on Strava
Feel free to join if you are on Strava: www.strava.com/clubs/bikeridecom

[-]
Top 5 Posters This Month
no avatar 1. GirishH
21 posts
no avatar 2. Flowrider
20 posts
no avatar 3. meamoantonio
14 posts
no avatar 4. rydabent
12 posts
no avatar 5. Jesper
11 posts