Serfas Saddle Tailbones Memory Foam Water Proof Hybrid Saddle Handlebar Tapes & Grips One end is compatible with

One end is compatible with the raised 36 mm wrench flats commonly found on fixed cups

It's durable and easy to install

• Kryptonite’s lightest weight u-lock option at 730 grams - 39% lighter than the Evolution Mini-5

• Color Black

to a rear rack

Serfas Saddle Tailbones Memory Foam Water Proof Hybrid Saddle Handlebar Tapes & Grips One end is compatible withSerfas 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. Our latest addition to the Tailbones family introduces a top layer of Memory Foam for a more personalized feel as well as added comfort. 90 Day Comfort Guarantee We understand finding the perfect saddle