Amazon.com : 10 Speed Cassette 11-42T MTB Cassette 10 Speed Fit for Mountain Bike, Road Bicycle, MTB, BMX, SRAM, Shimano : Sports & Outdoors
Amazon.com : 10 Speed Cassette 11-40T MTB Cassette 10 Speed Fit for Mountain Bike, Road Bicycle, MTB, BMX, SRAM, Shimano : Sports & Outdoors
10 Speed 11-42T MTB Cassette fits Shimano & Sram - Air Bike - Air Bike
Amazon.com : BOLANY Bike 10 Speed Cassette 11-25T/32T/36T/40T/42T/46T/50T Fit for MTB Bike, Road Bicycle, Lightweight Freewheel Super Light, Compatible with Shimano SRAM Sunrace (Black+Silver 11-40T) : Sports & Outdoors
Shimano's 10-speed 11-42 cassette is backwards compatibility done right - BikeRadar