Cylinder Works Big Bore Cylinder Kit 81mm 270cc - KTM 250 SX-F / Husqvarna FC250 / Gas Gas MC 250F (2015-2022)

Cylinder Works Big Bore Cylinder Kit 81mm - KTM 250 SX-F / Husqvarna FC250 / Gas Gas MC 250F

Take your 250 from 250cc to 270cc with this complete big bore cylinder kit. The +3mm overbore delivers noticeable power gains throughout the RPM range. Includes Vertex matched piston, Nikasil plated cylinder, and full gasket kit. Direct bolt-on with no machine work required. Made in the USA.

What's Included

• Cylinder Works 81mm big bore cylinder
• Vertex matched piston
• Piston rings
• Wrist pin and clips
• Complete top end gasket kit

Key Features

Big bore design increases displacement from 250cc to 270cc. Nikasil plated cylinder for long life and excellent heat transfer. Vertex piston ensures longevity and reduced engine noise. Looks virtually identical to OEM. Direct bolt-on installation with no machine work required.

Specifications

• Bore Size: 81mm (+3mm overbore)
• Displacement: 270cc
• Compression Ratio: 14.4:1
• Engine Type: 4-Stroke
• Material: Cast Aluminum with Nikasil plating
• Weight: 3.3 lbs

Fitment

KTM:

• 250 SX-F Factory Edition: 2015-2016
• 250 SX-F: 2016-2022
• 250 SX-F FE: 2017
• 250 XC-F: 2016-2022

Husqvarna:

• FC250: 2016-2022

Gas Gas:

• MC 250F: 2021-2022
• EX 250F: 2021-2022

Why Cylinder Works?

Cylinder Works is a trusted name in powersports engine components. Their cylinders and kits are manufactured in the USA to strict tolerances. Used by professional racers and weekend riders who demand reliability.