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Replacement crank arm question

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sirpsychosexy Offline
New Member


Posts: 1
Joined: Jun 2011
Post: #1
Replacement crank arm question
Hi guys, first time poster

Scenario: On tropical island with specialized mtn bike hardrock, pedal stripped left crank arm. I am looking to ship down replacement crank arm with tools needed to replace it. Shipping is a big deal and takes about 2 weeks so id like to nail this on the first try. Currently, my left pedal is welded to the crank arm!

Facts: Crank set is Sr Suntour octalink, spline
BB : Shimano BB-ES25, Octalink spline, cartridge bearing, 68mm x 118mm
(per specialized website specs).

Question: I am having trouble finding a replacement left crank arm, the closest one i could find is Sunlite Replacement Left Crank Arm for Octalink SP, 175mm, Black Now, i am unsure on whether or not my current crank arm is 175mm, is that a standard size for specialized mtn bikes? (size 21 if that matters), and I dont know what "SP" stands for??? Also i am guessing i just need an octalink extractor wrench (i already have the 8mm hex), any other tools needed? Any suggestions, clarifications are greatly appreciated.
Jun 14, 2011 04:01 PM
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nfmisso Offline
Veteran Member

San Jose, CA
Posts: 2,331
Joined: Jul 2010
Post: #2
RE: Replacement crank arm question

Nigel
Jun 15, 2011 08:37 AM
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Etmiller11 Offline
New Member


Posts: 3
Joined: Jun 2011
Post: #3
RE: Replacement crank arm question
I have old murray eliminator, I want to put new crankset on, just wondering what size bottom bracket it would have.
Jun 16, 2011 07:58 PM
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Joe_W Offline
Veteran Member


Posts: 1,177
Joined: Jul 2009
Post: #4
RE: Replacement crank arm question
Depends on the crank set. http://www.sheldonbrown.com/bbsize.html
Jun 18, 2011 04:46 AM
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