Cassette Compatability?
 

Hello all, my bike has 10speed mirage drivetrain, I love it with the exception of the cassette. Not enough low gear for me. I admit I'm still very new cycling but I'd love a little more low gear. I'm assuming my bike came with a short cage rear derailleur, and its ultradrive if that makes a difference. I found a couple of cassettes I'm interested in but I'd like to know of there will be compatability issues. I can only assume there will be. I have a standard compact crank, 50/34 and a 12/25 cassette now. I see there is a 13/29 and a 12/30 available. I'd love to get the 12/30 if it will work but I guess thats why I'm asking here. I really dont know what will work, can someone enlighten me?

The likelihood is that your present RD will work with either of those cassettes. You will need to adjust the b screw to the max
most likely and remember to add 2" (4 links) to the chain. Worst case, if you don't like the way it works is to spring for
a $20 wolftooth RD mount extender. FWIW a short cage 9spd DA on my recumbent shifts a 34t cassette without strain.

Have you taken it to the bike shop? A bike shop would be best for a job like this as it requires experience and special tools. It's possible you will need a different rear derailleur and it's probable that you will need a new chain. My guess is that the Mirage shifters will work. But instead if guessing, take it to the mechanic.

Agree, ^^ above^^ go to the bike shop..

a desert mirage is just the way the heat affects the light you see,

It really is not there.. well the Casino in Vegas may be there..




;)

Try it and see. 10s tech specs from Campy suggest you should be just fine with a compact setup, short cage and going up to 30t rear sprocket.

https://www.campagnolo.com/media/fil...ev02_07_16.pdf

I'll probably make an appt with my shop, I dont want to get into to much trial and error at home. Hopefully I'll get lucky and get away with a cassette and a new chain.