Rear Chain Tensioner Axle Adjuster 15mm 0.59 Inch For Coleman CT200u CT200u-EX Baja MB200 Massimo MB200 Mini Bike ATV Go Kart Taotao Sunl Peace XL70 XR100R CRF50 CRF70F CRF110F

Pack of 4 Rear Chain Tensioners, 15mm Axle Adjusters
✔️ 15 mm axle hole, 86 mm overall length, 6 mm thread

This rear chain tensioner axle adjuster is a compact hardware upgrade built for small bikes, ATVs, go-karts, and pit dirt bikes. It’s designed to keep chain slack in check on a variety of popular models, ensuring smoother power transfer and reducing derailment risk.

⚙️ Key specs and fitment details to help you choose:

Dimension	Metric	Imperial
Overall Length	86 mm	3.38 in
Axle Hole	15 mm	0.59 in
Screw Thread	6 mm	0.24 in

✅ Overall length 86 mm; axle hole 15 mm; thread 6 mm
✅ Fits Coleman CT200u, CT200u-EX, MB200, Baja MB165/MB200, Hensim MB165/MB200, TrailMaster MB200-1, Motovox MBX10/MBX11, MM-B80 80cc, XL70 XL100S XR100R CRF50F/CRF70F/CRF110F
✅ Includes 4 chain tensioners in pack

🧭 This accessory helps riders maintain optimal chain tension for safe operation, smoother power delivery, and reduced wear on the drive system during riding on small-displacement machines.

💡 What is a chain tensioner used for in small engine bikes? Handy, everyday guidance on chain tensioning and setup.

It keeps the drive chain at the correct tightness for smooth power transfer and reliable operation.

- Maintains proper tension to prevent jumping or skipping
- Reduces wear on chain and sprockets
- Helps prevent derailment and noisy drivetrain