Saris CycleOps Clutch Knob for Classic Bike Frames

Description

Saris CycleOps Clutch Knob for Classic Bike Frames
Includes Clutch knob and l-bolt
Basic trainer clutch knob is compatible with any mag, mag+ or fluid trainer that already uses l-bolt.
For use with Saris trainers only.
Tightens and clicks when the proper tension is achieved against your Trainer tire (just like your vehicle fuel cap).
The Saris clutch knob acts exactly like the gas cap on your car. When you begin tensioning down the resistance unit using the Clutch knob, you'll hear a click. This indicates that there is an appropriate connection to the rear tire, making sure you get a consistent and reliable ride, every single time.