Prevents the calliper pistons coming out of the bore accidentally when the pads are removed. Bleed Block. X2 Caliper. This tool is used to align the caliper with the disc. Simply install the spacer instead of the pads and secure with the pad pin.
HOPE V4 Service Kit Piston Clean Travel Bleed Block Brake Caliper Hopetech Green
HOPE EVO TR4 GR4 Ultimate Service Kit Piston Calibration Bleed Brake Caliper
HOPE E4 Ultimate Service Kit - Piston Travel Calibration Bleed Brake Caliper
HOPE V4 Ultimate Service Kit - Piston, Travel, Calibration, Bleed Brake, Caliper
Hope F20 Pedal Service Kit - Genuine Part
RockShox Service - 200 Hour/1 Year Service Kit (Includes Dust Seals, Foam Rings, O-Ring Seals) - Reba A7 80-100mm (Boost & Standard) 120mm(Boost) (2018+): Black