This Spider allows to clavicle M3 cranks chainrings with 120 | 80 mm bolt circle diameter to fit. The famous Sram bolt circle diameter 120 | 80, the assembly of 2 chainrings allows in gradation between 25 and 44 teeth. Corresponding chainrings are available in our store of BOR, Tune, Sram, Carbon-Ti and TA Specialites. The right tool for change they find in our shop.
Fits only clavicle M3 MTB cranks !
Material: Aluminum bolt circle diameter : 120 | 80