Briny River 2pcs M4 Bleed Port Filler Fitting with O-Ring Compatible with SRAM DB8 Guide R Code R

The M4 bleed port is compatible with SRAM Guide R/RS/RSC/T/Ultimate, Code R/RSC, Level TLM/Ultimate, Red eTap HRD, S-900 A-ero HRD, disc brake system and is used to connect the oil injection hose. Compatible with special brands and older models: Suitable for some special brands or older models of hydraulic disc brake systems, expanding adaptability. Self-sealing O-ring: Provides a tighter sealing effect, reduces leakage, and ensures a safe and reliable brake system. Material: Made of corrosion-resistant metal, it is resistant to high pressure and not easy to damage, which increases the service life. Suitable for brake maintenance and replacement: Used for exhausting, repairing or replacing the bleed port of hydraulic disc brakes, suitable for bicycle repairers and DIY maintenance.