The SHIMANO FC-RX610-1 crank balances weight savings, optimized efficiency and an array of gearing options that cater to the segmented demands of mixed-terrain riding.
VBC stands for “Variable Bolt Circle” and replaces several different bolt patterns with one simple, slotted outer chainring design that accepts a wide range of inner VBC chainrings.
H-Series cassettes are designed to deliver maximum durability. With all steel construction and multi-stage heat treatment, these cassettes will stand up to whatever you can throw at them.