Zipp ZR1 Cassette Hub

Specifications from the manufacturer: 

The Zipp ZR1 Cassette Hub is crafted to enhance your cycling experience with the Zipp ZR1 hub. This lightweight hub weighs only 68 grams and is compatible with 11-speed systems.

• Lightweight design: Weighing just 68 grams, it won't affect your bike's performance.
• 11-speed compatibility: Ideal for those seeking smooth and efficient gear shifting.
• Shimano system: Ensures reliable integration with your existing setup.

The Zipp ZR1 Cassette Hub is perfect for cyclists looking for a reliable and lightweight solution for their bike hub.