Conversion kit to spend a cassette standard Shimano 10 speed (XT or XTR) in 42 teeth.
Contains a crown Alu 7075 T6 anodized 42 teeth to replace the largest sprocket, cog 16 teeth in inserting into the cassette, a spacer and a cassette clamping nut Alu 7075 T6 anodized.
Features: Aluminim 7075 T6 Steel cog 16 teeth CR-mo (replacing the cog 15 AND 17 teeth)
Available in 42dents Color Black or Red.
For best performance it is advisable to mount the gear 42 with a 11-36 cassette and the 40 with a 11-34 cassette.