Silca Replacement Presta Valve Core (Set of 6) Factor Sister of the R2 type

Sister of the R2 type

Durable: You can ride safe in the knowledge that the jersey will not easily tear or snag if you ride into any trailside obstacles

Light And Tough: Precision Engineered From CNC’d 6061 Alloy With Anodized Black Finish And Laser Etching

Material: stainless steel

For this reason Ergon has developed a special women’s saddle for E-MTBs

Silca Replacement Presta Valve Core (Set of 6) Factor Sister of the R2 typeSo we've always noticed how really expensive tubulars had such nice valve cores with smooth edges and high quality seals that resisted sticking. When we started developing SILCA Tubeless valve stems, we set out to find the best cores, and realized that only a handful of companies make them globally. After a lot of phone calls, emails and discussions, we knew instantly when we had found the ones we were after. Fully CNC machined with roll formed