The 2008 Shimano Deore M770 Cassette is a strong and durable cassette that features small pins on the back of the large cog. Ever overshift a chain past the largest cog? These pins prevent the chain from reaching and damaging the spokes.
Weight(claimed): 297 g
Compatible with 9 speed drivetrains
Fits all Shimano and Shimano compatible 8/9sp cassette bodies
Spider arm design
Aluminum lock ring