Cylinder Works 77mm Standard Cylinder – KX250F 2004-2008 / RM-Z250 2004-2006
Cylinder Works 77mm Standard Bore Cylinder - KX250F / RM-Z250
Losing compression? Cylinder showing wear? This Cylinder Works 77mm cylinder is a direct OEM replacement for your KX250F or RM-Z250. No modifications needed. Just bolt it on and ride.
The bore features Nikasil plating. This coating resists wear, transfers heat efficiently, and seals rings tight. You get better compression, more power, and a longer-lasting engine.
What's Included
- 77mm standard bore cylinder
- Stock-appearance casting
Piston, rings, and gaskets sold separately. Pair with a Vertex or Wiseco piston kit for a complete rebuild.
Key Features
- Bolt-on OEM replacement
- Nikasil plated bore
- Precision machined tolerances
- Works with OEM, Vertex, or Wiseco pistons
- Stock look and fit
- Made in USA
Why Cylinder Works?
Cylinder Works builds cylinders and big bore kits for motocross, ATV, and UTV engines. Every cylinder is made in the USA with strict quality control. Trusted by pros and weekend riders alike.
Fitment
- Kawasaki KX250F (2004–2008)
- Suzuki RM-Z250 (2004–2006)
Complete Your Build
Add matching pistons, gaskets, and cam chains. Browse our full KX250F and RM-Z250 engine parts selection.
📦 Shipping Information
In-Stock Items:
- Most parts ship next business day
- Modquad parts: Monday–Thursday dispatch
Made-to-Order Items:
- Custom swingarms & A-arms: 2–4 weeks
- EVP exhaust systems: 2–4 weeks
- Sneakers: 1–2 weeks
Stock Guarantee: Items marked "In Stock" ship immediately. Made-to-order items are built fresh for you.
Questions? Contact us—we respond within 24 hours.
