Q-Connector Bicycle Brake Hydraulic Coupler for M9 drop bar extend tube* 3M for Shimano (ST-R9120 or equivalent) Standard:O.D 5mm* I.D 2.1mm (Standard size for Shimano BH-90) but maintenance and installation can

but maintenance and installation can be difficult and requires specialist tools

high strength Cr-Mo Steel (SCM435)

Details: Best floating function rotor for bicycle

Weight: 159g (Caliper only)

maintenance and installation have always been a headache—requiring specialist tools and constant re-bleeding

Q-Connector Bicycle Brake Hydraulic Coupler for M9 drop bar extend tube* 3M for Shimano (ST-R9120 or equivalent) Standard:O.D 5mm* I.D 2.1mm (Standard size for Shimano BH-90) but maintenance and installation canThe hydraulic system became the mainstream brake system on road bikes, gravel bikes, and cargo bikes. Hydraulic brakes provide excellent power and control, but maintenance and installation can be difficult and requires specialist tools, plus the specifications of each brand are also different. Our clever Q Connector finally solves these problems for bikes with hydraulic discs. The Q Connector allows instant, tools free connecting and disconnecting of