Aerozine CS-42-SA 10 Speed Cassette Sprocket Adapter Cog Feature : Light up your cassette with AEROZINE lasted 40-44T expander sprocket. Add much needed range and extend the life of your original cassette by replacing the aluminum cog with the AEROZINE 40T/42T/44T sprocket. Not just to get an easier ride. It's also a new solution to those racers who is looking to maximize their chainring size for timed downhill sections,while still being able to conserve energy on transition stage climbs. The Aerozine sprocket adaptor allows you to upgrade your existing cassette. The Aerozine Adaptor simply installs behind your existing cassette and replaces one of the smaller sprockets, usually the 16T. Precise matching of the tooth profiles and shifting points specific to each cassette Perfect matching of supporting tabs reducing flex and aiding shift performance Lower B-tension adjustment is needed ensuring good shifting throughout the cassette range compared to fitting a 40t/42t. 40T Shimano compatible with XT and XTR 11-34t 10spd cassettes, 42T with Shimano XT and XTR 11-36 42T Sram compatible with PG1030, PG1050 and PG1070 11-36 cassettes 44T Sram compatible with PG1190 10-42 cassettes • Material 7075 Aluminum CNC machined • Compatiablity 10 speed • Size:42T • Spacers 0.5mm (for Shimano) & 1.2mm (for SRAM) • Included : 16T cog Suitable for: SRAM 10 speed X5 11-36T (PG-1030) X7 11-36T (PG-1050) X9 11-36T (PG-1070) Shimano 10 speed XT 11-36T (CS-M771) XTR 11-36T (M980)
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