Blackspire DeCOGnition Rear Cassette Reducer 6 - 7 - Black

This cassette adaptor is ideal for riders who would like to reduce their gearing ratio to save weight or to discard unused gears. Ideally designed for Downhill riding where the larger sprockets are not used as often.

• 9 speed cassettes convert into 6 speed cassettes

• 10/11 speed cassettes convert into 7 speed cassettes

• Shimano freehub body compatible

• CNC'd 7075 T-6 aluminum

• 60 grams approx