NEW Problem Solvers Presta Valve Extenders: Standard 50mm Black brand_sunrace and 12-speed chains (including SRAM

and 12-speed chains (including SRAM Flattop 12-speed chains)

1-1/8" straight steerer tube

so you keep an eye on the weights too- you can have it all with EN305

40% more contact area than the competition

35% more contact area than the competition

NEW Problem Solvers Presta Valve Extenders: Standard 50mm Black brand_sunrace and 12-speed chains (including SRAMProblem Solvers basic valve extenders. Tube valve core remains unscrewed, extender threads to valve allowing the use of shorter length valves on deep section rims. Sold individually Designed for standard presta valves. Not recommended for use with removable core valves Allows use of short valves with deep section rims Use Teflon plumber tape to control air leakage Valve Length: Long 56 74mm Valve Length: Short 32 40mm Length: 50