Muc-Off Big Bore Hyrid Tubeless Valve Stems - Large 45mm Black MFPN=R9ZA6475 The SRAM RED AXS power

The SRAM RED AXS power meter is a huge step forward in power meter design giving riders the gearing they truly want and need

7mm inner diameter for bar end brakes or shifters

Derailleur features an overload clutch that boosts resiliency and a tucked-in profile that houses protection covers on the fully replaceable B-knuckle and outer link

5 or 29 inch frames with 1` to 4` tires

Flexible mesh back

Muc-Off Big Bore Hyrid Tubeless Valve Stems - Large 45mm Black MFPN=R9ZA6475 The SRAM RED AXS powerSay goodbye to the hassle of traditional tubeless valves that clog up and require valve cores to be removed to fill sealant with sufficient air flow during set up. Big Bore Valves are engineered with precision and designed to deliver maximum air inflation simply and efficiently. Crafted from 7075 aircraft grade CNC machined aluminum construction with a stainless steel ball valve this fully serviceable valve is built to withstand the toughest rides