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

Go Back   > >

Mountain Biking Mountain biking is one of the fastest growing sports in the world. Check out this forum to discuss the latest tips, tricks, gear and equipment in the world of mountain biking.

User Tag List

Thread Tools Search this Thread
Old 04-01-12, 11:46 AM   #1
Senior Member
Thread Starter
Join Date: Oct 2010
Location: Texas
Posts: 458
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
Twisting Shifter Grip Conversion/Larger Big Ring

I'm modifying a Gary Fisher Marlin GS for road duty. I replaced the flat bar with a Jones H-bar, this is ideal for my GF's preferred narrow hand placement, but requires shuffling the current Alivio trigger shifters way outboard due to limited grip end space (5.5 inches). I'm guessing a twisting shifter would be more convenient and solve some of the ergo issues we both have with those Alivio shifters, even when they are in the correct location. The drive train is an 8 speed triple, Deore RD, Alivio FD; is an 8 speed twisting grip shifter a direct and compatible conversion from trigger shifters? Any recommendations?

Another issue is the high gear. The current Bontrager crankset has a 42 tooth big ring (104BCD/4bolt), I would like to install a 48 tooth Shimano outside ring; any comments on that swap? BTW, I measured and there is clearance for the larger ring from the chainstay, FD is top pull clamp on, so room here also.
Werkin is offline   Reply With Quote
Old 04-02-12, 02:43 AM   #2
Senior Member
commo_soulja's Avatar
Join Date: Aug 2008
Location: C-Ville
Bikes: are fun to ride
Posts: 1,144
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
You'll have to get a Sram Attack grip shifter if you want to use your Shimano derailleur. The X.# series shifters are only compatible with Sram rear derailleurs. All Sram front grip shifters are Sram/Shimano compatible. You may have to raise the front derailleur to clear the larger 48t ring. .
commo_soulja is offline   Reply With Quote

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 04:00 AM.

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.
  • Ask a Question
    get answers from real people!
Click to start entering your question.