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Cylinder kit for Honda CRF 250 R/X Big Bore 82mm 280cc 04-09

Cylinder kit for Honda CRF 250 R/X Big Bore 82mm 280cc 04-09

SKU: P400210100009
GTIN: 8055681300408
HAN: P400210100009
Category: CRF 250 R-X / CR 250 R
Manufacturers: Athena

Power increase to 38 HP: Significantly more performance compared to the stock engine
High-grade Nikasil coating: Reduced friction and enhanced lubrication at high RPMs
Forged racing piston: Maximum durability with lightweight construction for top performance
Improved cooling system: Enlarged water channels ensure optimal heat dissipation during extreme use
Optimized torque curve: Increased torque across the rev range, ideal for hill climbs
Complete installation kit: Includes all required parts – ready to install
Compatible with Honda CRF 250 R/X: Fits model years 2004 to 2009

524,95 €

incl. 19% VAT , plus

Manufacturers recommended retail price: 865,99 €

(Save 39.38%, i.e. 341,04 €)

Low stock level
Delivery status: 1-4 days
Order within the next 2 days and 16 hours and 12 minutes and 00 seconds and we will ship your order on 15.12.
Delivery time: 1 - 3 Workdays (DE - int. shipments may differ)

Order within the next 2 days and 16 hours and 12 minutes and 00 seconds and we will ship your order on 15.12.

Set

High-Performance Tuning Cylinder up to 280cc 82mm for Honda CRF 250 years 2004-2009 – Precision and Power

This Big Bore tuning cylinder transforms your Honda CRF 250 R or X (model years 2004–2009) into a high-performance enduro or motocross machine. With a displacement of 275.7cc and a precisely tuned torque curve, this kit delivers significantly more pulling power – especially during steep climbs or in extreme off-road conditions.

Advanced Engineering for Maximum Off-Road Performance

The cylinder features a premium Nikasil coating, which ensures minimal friction and consistent lubrication, even at high RPMs. Combined with a forged lightweight racing piston, this setup offers maximum durability and high load resistance under demanding conditions.

Technical Highlights of the Cylinder Kit

Bore: 82 mm
Stroke: 52.2 mm
Displacement: 275.7 cc
Power Output: approx. 38 HP at 10,300 RPM (Stock: 32.9 HP)
Compression Ratio: 13.1:1

Enhanced Cooling Efficiency for Extreme Conditions

The cylinder features enlarged water cooling channels, providing superior heat dissipation during extreme use. This helps maintain consistent engine performance under long-term stress and heavy loads.

Consistent Torque Across All RPM Ranges

The kit is specifically tuned to deliver optimized torque throughout the entire rev range. This translates to greater power reserves right from the start and better control in steep or technical terrain.

Vehicle Compatibility

Model	Year	Manufacturer
CRF 250 R	2004–2009	Honda
CRF 250 X	2004–2009	Honda

Scope of Delivery – Complete Big Bore Cylinder Kit

Complete cylinder kit
Forged, ultra-lightweight racing piston
Special gasket set
All necessary assembly parts

Important Note:

Tools required for installation are not included in the delivery.

Conclusion: Tuning at the Highest Technical Level

This Big Bore tuning kit takes your Honda CRF 250 to the next level of performance. Ideal for demanding off-road riders who prioritize technical reliability, enhanced torque, and thermal stability. The kit comes ready for installation and includes all required components.