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) Compressionless housing is highly recommended

Compressionless housing is highly recommended

or SLQ2-6-1 to function as a complete set

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

high strength Cr-Mo Steel (SCM435)

but maintenance and installation can be difficult and requires specialist tools

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) Compressionless housing is highly recommendedThe 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