Ritchey WCS Headset Upper Cartridge 15mmTopCap ZS44/28. CheckoutTitle=Ohlins Air Spring Service Kit - 100 Hour/Standard Service New in 2026

New in 2026

Caliper features 2 phenolic plastic pistons for plenty of braking power

25 ISO 559 Bead Fold Belted Tread/Sidewall Color Bk/Ysk PSI 100 Weight (Grams) 250 TPI 60 Durometer Features Reflective Sidewall No

Includes 8 different bit sizes

Ritchey WCS Headset Upper Cartridge 15mmTopCap ZS44/28. CheckoutTitle=Ohlins Air Spring Service Kit - 100 Hour/Standard Service New in 2026Semi integrated sealed cartridge bearings with alloy cups that press into the head tube Upper includes top cap Lower includes crown race Model WCS Upper S. H. I. S. ZS44 28. 6 Stack 15mm Upper Lower Upper Color Black Weight 49g Type Upper S H I S ZS44 28. 6 Stack Height 15Mm