Shifting on its own

[awilki01]

I have a SRAM Rival set on my Cervelo S2. When I'm doing threshold intervals and pushing somewhat hard, the gears (in the back) will sometimes shift on their own to a higher (smaller cog) gear. Is there anything I can look at that might help alleviate this? I have a TT coming up in a few weeks, and this gets really distracting having to play with the shifters so much.

 

[dabac]

Check out what Sheldon Brown has to say about ghost shifting:http://sheldonbrown.com/autoshift.html

 

[awilki01]

Thank you!