Go Back  Bike Forums > Bike Forums > Bicycle Mechanics
Reload this Page >

Thanks in advance... Broken FSA SLK-Light left crank arm

Notices
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.

Thanks in advance... Broken FSA SLK-Light left crank arm

Old 12-04-19, 10:02 AM
  #1  
Genaro
Senior Member
Thread Starter
 
Genaro's Avatar
 
Join Date: Aug 2010
Location: Rosena Ranch, Ca.
Posts: 1,279

Bikes: Motobecane Immortal Force

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 19 Post(s)
Liked 15 Times in 11 Posts
Thanks in advance... Broken FSA SLK-Light left crank arm

Not sure how it ha penned, but my left crank arm appears to have become separated from the retaining ring. Appears to be toast. I am in the market for a new bike and only intend to ride this bike in the pain cave, so I would like a cheap replacement crankarm but dont know what is compatible. The Bottom bracket is BB8681 MEGA EXO w/24 mm spindle..(Not sure if that helps)


Thanks in advance.
Genaro is offline  
Old 12-04-19, 10:35 AM
  #2  
tomtomtom123
Senior Member
 
Join Date: Jan 2017
Posts: 1,014
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 332 Post(s)
Likes: 0
Liked 110 Times in 78 Posts
Well, a 1 minute Google Search came up with a thread on bikeradar forum saying that someone was able to use Shimano hollowtech BB with the FSA SLK MEGA EXO crank.
https://forum.bikeradar.com/discussi...mment_15394980

Shimano hollowtech road BB is approximately 91mm overall width. The road cups are each about 11.5mm width to the dust cap, so on a 68mm shell, 68+11.5x2 = approximately 91mm.
MTB BB cups are each 1mm narrower if you need to get the chainline closer inward (or use shims on the chainrings).

You can measure your FSA BB to see if it is also 91mm overall width. I think +/-1mm variance should be ok. You could always shim the spindle if the BB is too narrow (but I myself wouldn't add more than 1mm). Assuming that your FSA BB is 91mm width and the 24mm spindle tolerance is the same as Shimano's 24mm spindle, you could try and find some cheap or used Shimano hollowtech cranks. Some of the cheap new ones sell for $50.

Otherwise, you can buy cheap Hollowtech road BB for under $10, assuming that you have BSA 68mm shell.
tomtomtom123 is offline  
Old 12-04-19, 10:44 AM
  #3  
Genaro
Senior Member
Thread Starter
 
Genaro's Avatar
 
Join Date: Aug 2010
Location: Rosena Ranch, Ca.
Posts: 1,279

Bikes: Motobecane Immortal Force

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 19 Post(s)
Liked 15 Times in 11 Posts
Thanks TomTom - Appreciate the help. A lot of good information for me to digest.
Genaro is offline  

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


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.