Challenge Alloy Valve Extender Kit (2 Extender+Tool, 41.5mm) Threadless BB-UN300 Threaded bottom bracket shell

BB-UN300 Threaded bottom bracket shell width (mm)_68 ✔ Threaded bottom bracket shell width (mm)_73 ✔ Crank arm fixing bolt_With ✔ Q-factor (mm) 185

and 8mm hex keys

effectively eliminating blind spots to upcoming automobiles

8 Flange distance (mm) 56

Elastic top bungees

Challenge Alloy Valve Extender Kit (2 Extender+Tool, 41.5mm) Threadless BB-UN300 Threaded bottom bracket shellDescription This two pcs pack of alloy valve extenders includes a specific wrench tool for easy fitting with accuracy. These valve extenders are extremely useful if you are using deep section wheels high profile rims. They weigh almost nothing, include the key tool needed for installation, and will outlast the wheels and tires you install them on. Each is 42mm long, which combined with the height of the original valve, is tall enough to be accessible