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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: 70g (40 t.), 77g (42 t.)
Build: single speed Number of Gears: 10 Compatible: Sram