CR125 Cylinder Repair – Precision 125cc 2-Stroke Resleeving
The Honda CR125 is a high-revving, competition-focused 2-stroke that depends on precise cylinder geometry and durable port edges to perform correctly.
Cylinder damage, worn plating, or excessive previous repairs can compromise reliability and power delivery.
MotoMonk offers a dedicated CR125 cylinder repair and resleeve service, using model-specific cast iron sleeves, controlled finish honing, and properly chamfered ports. This approach restores correct piston clearance, improves long-term durability, and allows future service through standard oversize boring.
YOUTUBE Video how we sleeve a Nikasil cylinder.https://www.youtube.com/watch?v=Ma68gdH2QQY&t=190s
Why Choose MotoMonk for Your Honda CR125 Cylinder Repair?
- Extensive experience with Honda CR125 engines across multiple generations
- Precision resleeving focused on port durability and bore accuracy
- Improved serviceability compared to thick replating repairs
- Clear communication and technical guidance before and after machining
Honda CR125 Cylinder Repair / Resleeve
✅ Cylinder sleeved with a model-specific cast iron sleeve
✅ Precision machining for sleeve installation
✅ Port chamfering after sleeving
✅ Final bore & professional honing on our Sunnen honing machine
✅ Cylinder deck machined for optimal gasket surface👉 Optional: Porting services are available upon request. Please contact us before work begins if porting is desired.
What’s Not Included
All parts (including the sleeve)
Piston, rings, bearings, studs, gaskets, seals
Power valve service, cleaning, or repair
Shipping & handlingCylinders must arrive fully stripped. Studs, gaskets, power valve components, and all attachments must be removed. Cylinders received assembled will incur additional labor charges.