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


Shimano SLX double chainset
#1
Will the Shimano SLX M665 HollowTech II Double Chainset fit on the specialized rockhopper expert disk 2009 ?

I want to know this because of I am think of buying this product so any answers are helpful thanks.

Shimano SLX M665 HollowTech II Double Chainset link: http://www.wiggle.co.uk/p/cycle/7/Shimano_SLX_M665_HollowTech_II_Double_Chainset/5360038111/
  Reply
#2
UPDATE: I looked over the specs of both cranksets and they do look like they can be changed out! Just double check with someone from Shimano. When you email or call them tell them you have the FC-M521 crankset and wish to replace it with the M665. They will be able to tell you for sure.

Hope this helps ,
Bill





Well I really cannot say that it will but here is the cross reference links....

Here is the link for Specialized Bikes which I would choose which model of the Rockhopper you have..
http://www.specialized.com/us/en/bc/SBCBkModel.jsp?sid=10RockhopperSL&eid=4340&menuItemId=9253

Then search here for the model of crankset on the bike

http://techdocs.shimano.com


Then search for the one you wish to replace it with.
Good maintenance to your Bike, can make it like the wheels are, true and smooth!
  Reply
#3
Yeah that should work fine, just make sure you have the correct bottom bracket and front derailleur/shifter. If your changing from a triple to a double you might have an issue with the shifter.
  Reply
#4
Should work, and +1 on checking the bottom bracket.

Adjust the front derailleur limiter screw so it doesn't shift into the 3rd ring position anymore.

And, just a reminder, a double crankset typically has a smaller Q Factor than a triple, and on SOME bikes, this can cause a problem with the crank arms hitting the chainstays.

This might not be a problem with modern cranksets, since so many people switch out their triples for doubles. Just be on the same side.

Good Luck!
Dedicated scholar of bicycles
  Reply


Possibly Related Threads...
Thread
Author
Replies
Views
Last Post
 
12,498
08-08-2010, 10:48 AM
Last Post: rbeggy
 
10,684
08-14-2008, 05:21 PM
Last Post: Alex Ramon

Forum Jump:

[-]
10 Latest Posts
Hatch Chiles Rule!
Today 04:56 PM
Should eBikers have to get an eBike lice...
Today 05:21 AM
How Bad Are E-bikes By You?
Yesterday 10:29 PM
Shortness of breath.
Yesterday 09:56 PM
Hello All
11-06-2026 09:03 AM
I don't usually wear a bike helmet. Does...
11-06-2026 02:48 AM
Chain skips under heavy load when pedall...
11-06-2026 02:44 AM
Are 26" really dying out?
11-05-2026 08:22 PM
Catastrophic bicycle failures
11-05-2026 08:15 PM
Our new review format – we'd like your f...
11-04-2026 05:51 AM

[-]
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. Flowrider
25 posts
no avatar 2. GirishH
17 posts
no avatar 3. ReapThaWhirlwind
11 posts
no avatar 4. meamoantonio
11 posts
no avatar 5. Jesper
10 posts