What is a Clutch?
Connects and disconnects engine power from the gearbox so you can change gear and pull away smoothly.
Simplified animation — not to scale.
In plain English
The clutch uses a stack of friction plates to link the spinning engine to the gearbox. Squeeze the lever and the plates separate, momentarily disconnecting drive so you can shift gear or come to a stop.
“Like two spinning discs pressed together — squeeze the lever and they separate, letting the engine spin freely while the gearbox stands still.”
How it works
Springs clamp a stack of friction and steel plates together, transmitting engine power to the gearbox input shaft. Pulling the clutch lever draws a pushrod or cable that compresses those springs, separating the plates and cutting drive. Many modern bikes add a slipper function that lets the clutch slip on aggressive downshifts to stop the rear wheel locking.
Signs of trouble
- ⚠Clutch slipping — revs rise without matching acceleration
- ⚠Grabby or juddery take-up from a standstill
- ⚠Difficulty finding neutral
- ⚠Lever feeling unusually heavy or light
£150–£500
Always get a written quote. Prices vary by bike, region, and parts brand.