OSPW Pulley Wheel System for SRAM eTap summer_sale The mini frame bag is

The mini frame bag is secured with bungee cords and adjustable velcro straps to keep your frame safe from blemishes

They feature a brake track vent design for smooth

Lightweight ripstop fabric that is fully-seam sealed

Whether shredding rocks

This is no-nonsense performer

OSPW Pulley Wheel System for SRAM eTap summer_sale The mini frame bag isThe CeramicSpeed Oversized Pulley Wheel System provides optimization and increased efficiency of the rear derailleur through its extremely low friction bearings and unique overall design. FEATURES: Features two oversized 17 tooth aluminum pulley wheels with Grade 3 Silicon Nitride balls Robust cage crafted from polyamide and carbon fiber for durability and light weight Hardened steel bearing races Only compatible with SRAM 11 speed eTap derailleurs