Stan's Universal Valve Stems - 44mm PSI SRAMSALE Actual lifespan depends heavily on

Actual lifespan depends heavily on maintenance and riding conditions

Compatible with SRAM HRD

5 x 41mm) to GXP spindle crankset

Internal width: 19 mm

The Shimano Dura-Ace Di2 RD-R9250 12-Speed Rear Derailleur represents the pinnacle of electronic road shifting

Stan's Universal Valve Stems - 44mm PSI SRAMSALE Actual lifespan depends heavily onThe original and still the best tubeless valve stem for most rims and a perfect fit for all Stans BST rim models. Weighs only 16g, 18g and 21g per valve respectively for the 35mm, 44mm and 55mm models. Durable brass construction. Removable valve core makes adding sealant easy. Fits up to 8mm valve hole. Sold as a pair.