Heavy Duty Tube 400/460-18 Tr-4 Valve Stem
Features:
- T3 (Tapered Tube Technology) Technology offers variable tube thickness to keep weight down and put strength where you need it
- Less unsprung weight and better cooling
- The latest in tube technology
- Built with a high grade synthetic and natural rubber blend
- Heavy 2.5mm outer thickness tapers to a thinner, lighter 1.75mm thickness against the rim