WOLFTOOTH cartridge extension 42 teeth for Shimano
42 teeth for Shimano 10-speed XT and XTR - cassettes.
In exchange for the 17er or 15er pinion has 42 teeth of this pinion an extension of the sprocket assembly. The shift aids are designed for the alignment of the teeth on a 36 tooth Shimanokassette.
The cassette extension is compatible with Shimano 10-speed cassette 11-36T XT (M771) and XTR 11-36T (M980). It is not compatible with SLX cassette.
Compatible: XT (M771) and XTR (M980)
Colors: black, silver, red, blue, orange
Weight: 86 g