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e*thirteen Extended Range Cassette 10-Speed 42 Teeth for SRAM red

ID: 491991
- 40%
Incl. VAT, excl. shipping costs
e*thirteen Extended Range Cassette 10-Speed 42 Teeth for SRAM red
e*thirteen Extended Range Sprocket 10-Speed 42 Teeth for SRAM black
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Product Description

Sprocket with 42 teeth to extend the range of existing 10-speed cassettes - Replaces the 15 or 17-speed sprocket and is mounted behind the cassette. Includes an extra long aluminum screw for optimal rear derailleur position adjustment.


  • Add-on cog to expand the gear range of 10-speed Shimano cassettes
  • replaces one of the middle sprockets (15 or 17)
  • incl. longer governor screw for the rear derailleur
  • NOT compatible with Shimano XTR M980 (11-36 T.)
  • NOT compatible with Shimano XT M771-10 (11-36 T.)
  • compatible with SLX HG81
  • compatible with SRAM X0 PG-1080 (11-36 T.)
  • Weight: 70 g (40 t.), 77 g (42 t.)
Intended use
Derailleur gears  
Material type
77  g
Build: single speed
Number of Gears: 10
Compatible: Sram
Number of Teeth: 42  
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