SB001 / SB002 / SB003:
Caliper adapter for oversize brake discs for radial type system (postmount). All assembly may use 4 bolt, 2 for the brake caliper (front) and other 2 for fork or bike frame (rear). 2 bolts included. It is recommended to assemble by a specialist and not use axial caliper adapters (IS system) for discs bigger than ø180mm.