Jackshaft Chain Sprocket Ten Tooth Five Eighth Inch Bore Three Sixteenth Inch Keyway Fits Coleman CT200U EX BT200X CT200U Trail Mini Bike Front Sprocket 40 41 420 Chain Drop-In

Single 10-tooth Jackshaft Sprocket for Mini Bikes
✔️ 10-tooth, 5/8 bore, 3/16 in keyway, fits CT200U/BT200X

This drop-in mini bike jackshaft sprocket is a direct replacement for the small sprocket used on the jackshaft and final drive systems of Coleman CT200U family bikes, including CT200U EX and BT200X. Package includes 1 sprocket and 1 pin for easy install.

✅ 10-tooth sprocket designed for 40, 41 and 420 chains
✅ 5/8 bore with 3/16 keyway
✅ Direct replacement for jackshaft small sprocket; includes 1 pin
✅ Fits Coleman CT200U, CT200U-EX, CT200U Trail, BT200X
✅ Easy installation with high transmission efficiency

💡 What is a jackshaft sprocket used for in small engine drive systems?

This handy component helps transfer power and set drive ratios in compact drive setups. - Transfers torque from engine to chain via the jackshaft - Provides the correct gear ratio for varying drive needs - Works with 40/41/420 chain sizes common on torque converters - Ideal for mini bike builds and small-engine machines