Specialized Nimbus Flat Resistance Street Reflective Tyre Size:27.5" x 2.3 With a Zwift Cog pre-installed

With a Zwift Cog pre-installed

and securely held in place with our adjustable FlexTight™ bracket

If you own a Rockshox Boxxer C1

hydraulic lockout

Going tubeless is a no brainer in many bicycle riding situations

Specialized Nimbus Flat Resistance Street Reflective Tyre Size:27.5" x 2.3 With a Zwift Cog pre-installedThe Nimbus Flat Resistant Wirebead tire features great puncture protection and a modernized tread and compound that rolls fast and provides ample grip. It comes in many widths to accommodate different bikes, riding styles, and comfort levels, so it's the perfect choice for riding on any road or bike path. Our Flat Resistant model uses a hybrid kevlar breaker that's flexible, strong, and keeps you rolling flat free. Casing: 60 TPI Bead: Wire Flat