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.

SRAM shifter ratios?

Reply

Old 06-19-10, 09:41 PM
  #1  
es1bkacsur
Senior Member
Thread Starter
 
es1bkacsur's Avatar
 
Join Date: Apr 2010
Location: Port St Lucie, Fl
Posts: 117

Bikes: Custom Cannondale built from spare parts.

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
SRAM shifter ratios?

I have a Trek 720 multitrack with Shimano 200CX rear deraileur & 12 to 28 tooth sprocket set that I wanted to convert from twistgrip shifter to lever style. I got a SRAM TRX trigger shifter, suposedly new in original package, off Ebay at a low price. The 1st one I installed with the chain & shifer both in 7th gear. I shifted it up thru the gears to 1st & it got stuck in 1st & 2nd. Sent it back for a repalcement & the 2nd one sometimes either stuck like the 1st one or skipped over 1 or 2 gears from 1 shifter click.
I've noticed that the TRX I have is listed as "2:1 Actuation Ratio" QUESTION- do I need to get a shifter listed as "1:1 Actuation Ratio" like a SRAM X.3 trigger shifter because a 2:1 is incompatable with my deraileur or are the SRAM shifters just not good?
es1bkacsur is offline  
Reply With Quote
Old 06-19-10, 11:21 PM
  #2  
531phile 
I'm Carbon Curious
 
531phile's Avatar
 
Join Date: Aug 2005
Posts: 2,194
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
your shimano derailleur is 1:1 ratio so you will need a shifter with a 1:1 ratio.
531phile is offline  
Reply With Quote

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