Multi-use tread for city

This signals muscles to not make excess lactate

disc spacer and bolts

Bottom Bracket Shell I

With a real mountain bike cockpit

SERFAS Tailbones Memory Foam Water Proof Saddle - Unisex recumbant Multi-use tread for citySerfas Tailbones saddles supports the sit bones and provides a smooth comfortable ride using Progressive Density Foam while a Deep Groove Design allows maximum blood flow into the neurovascular bundle for drastically reduced numbness and discomfort. Features: Top Layer of Memory Foam For Added Comfort High Sit Area For Soft Tissue Relief Progressive Foam Technology Relaxed Riding Position Rails: Steel Cover: Waterproof Vinyl Specs: Length: 10. 90