I would like to know is there any different between Extreme Power & Extreme C ? I am only 138 pounds 5"7' rider.

power for sprinter and c is for climbing as was used by michael rasmussen of robobank.

Bigger tubes. More carbon placed in spots to reduce flex. At 137 pounds, you don't need it!! Beast sprinters only, or old fat dudes like me.

Bigger tubes. More carbon placed in spots to reduce flex. At 137 pounds, you don't need it!! Beast sprinters only, or old fat dudes like me.

thanks , so I should stay with my Extreme C

thanks , so I should stay with my Extreme C


Yep. I think so. If you gain 50 lbs. the C50 or Extreme Power would be the ticket. Just be happy you're of a size that can ride that beautiful light bike and not have to worry about breaking it.