Originally Posted by
Dan333SP
This is slightly related... Is it possible to convert 9 speed ergopower levers to 10 speed? I've got a pair of '99 NOS chorus levers on my backup bike, but I actually much prefer the shift feel to the 105 on my main bike, so converting them to 10 spd and running a shift mate might be an option.
Sure. You just need a new front ratchet (EC-RE062) and index cam (EC-RE061).
In a pinch you could skip the front ratchet, although when I did that on my 8 to 9 cog conversion I couldn't make the three cog shift to the largest until I bent the front paddle a bit.