Any ceramic pulley is compatible with Shimano RD-9000?
Comp Ultra is with 30mm aluminum spindle, how about Comp One?
Besides, Super Record Ti crankset is 630g with cup, how can Comp Ultra be 50g lighter than Super Record Ti?
“The Comp Ultra is listed at 620 grams…and the Comp One is listed at 675 grams”
I think it is for a complete set with the bearing cup. Is it the same for all BB type…e.g.…[Read more]