Hope - V4 Caliper Tuning Tool

V4 Caliper Tuning Tool

This tool is recommended to achieve the best lever feel when using V4 caliper with 1.8mm or 2.3mm discs. 

This is not required if using a 3.3mm vented disc.

Available for:
V4 Caliper only

Instructions:
Use this tool at the end of the brake bleed procedure. After pushing the caliper pistons back into the housing, swap the bleed block for this tuning tool.
Pump the piston(s) out until they contact the block. Finally top up the master cylinder reservoir with brake fluid as you would when finishing a normal brake bleed procedure. 

Note:
This allows a slightly larger fluid volume in the brake when running with thinner rotors and will help to maintain consistent performance during hard use. 

*This information is directly taken from Hope's open source tools information page