Aerozine 42T Red Sprocket Adaptor
  • Aerozine 42T Red Sprocket Adaptor

Aerozine 42T Red Sprocket Adaptor

Available Now & In Store

Sprocket Adaptor

The Aerozine sprocket adaptor allows you to upgrade your existing 11-36 10spd cassette to give an 11-40T

range. The Aerozine Adaptor simply installs behind your existing cassette and replaces one of the smaller

sprockets, usually the 17T.



  • 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 42t
  • 40T Shimano compatible with XT and XTR 11-34 10spd cassettes, 42T with Shimano XT and XTR 11-36
  • 42T Sram compatible with PG1030, PG1050 and PG1070 11-36 cassettes
  • Available in Black, Gold, Red & Silver