Honda CRF 250R CP Piston Kit and
CRF250R Big Bore Piston Kits
- Piston/Gasket Kit Set includes: 1 Piston, 1 Piston Pin, Piston Rings, Pin Lock rings, 1 Top End Gasket Kit
- Piston Kit includes: 1 Piston, 1Piston Pin, 1 set Piston Rings, Pin Lock rings for 1 cylinder
- Gasket Kit Includes: Cometic high performance top end gaskets required to replace piston in 1 cylinder
|
2004 - 2008 Honda CRF 250R CP Piston Kits and
CRF250R Big Bore Kits
Standard Stock Bore size is 78mm (3.071") Stock Stroke is
52.2mm (2.055") |
| Bore Size |
Disp. |
Comp |
Installation
Notes |
Piston/Gasket Kit
|
Piston Kit
|
Gasket Kit
|
| 78mm std. |
250 cc |
13.0-1 |
deglaze cylinder |
cpk2042c
|
cp m2042c
|
cp c7185
|
| 78mm std. |
250 cc |
13.5-1 |
deglaze cylinder |
cpk2000c
|
cp m2000c
|
cp c7185
|
| 78mm std. |
250 cc |
13.5-1 |
deglaze cylinder |
cpkx2000c
|
cp mx2000c
|
cp c7185
|
| 79mm +1mm oversize big bore |
256cc |
13.5-1 |
bore and replate |
cpkx2061c
|
cp mx2061c
|
cp c7189
|
| 79mm +1mm oversize big bore |
256cc |
14.25-1 |
bore and replate |
cpkx2062c
|
cp mx2062c
|
cp c7189
|
| 80mm +2mm oversize big bore |
262cc |
13.5-1 |
requires sleeve or cylinder |
cpkx2050C
|
cp mx2050C
|
cp c7189
|
| 81mm +3mm oversize big bore |
269cc |
13.5-1 |
requires sleeve or cylinder |
cpkx2051C
|
cp mx2051C
|
cp c7189
|
2009 Honda CRF 250R CP Piston Kits and
CRF250R Big Bore Kits
Stock Bore size is 78mm (3.071") Stock Stroke is
52.2mm (2.055") |
| 78mm std. |
250 cc |
13.5-1 |
deglaze cylinder |
cpk2060c
|
cp m2060c
|
cp c7185
|
| 78mm std. |
250 cc |
13.5-1 |
deglaze cylinder |
cpkx2060c
|
cp mx2060c
|
cp c7185
|
| 79mm +1mm oversize big bore |
256cc |
13.5-1 |
bore and replate |
cpk2064c
|
cp m2064c
|
cp c7189
|
| 79mm +1mm oversize big bore |
256cc |
14-1 |
bore and replate |
cpkx2067c
|
cp mx2067c
|
cp c7189
|
2010 - 2012 Honda CRF 250R CP Piston Kits and
CRF250R Big Bore Kits
Stock Bore size is 76.8mm (3.023") Stock Stroke is
53.8mm (2.118") |
| 76.8mm std. |
249 cc |
13.5-1 |
deglaze cylinder |
cpk2070c
|
cp m2070c |
cp c3288
|
| 76.8mm std. |
249 cc |
13.5-1 |
deglaze cylinder |
cpkx2070c
|
cp mx2070c
|
cp c3288
|
| 79mm +2.2mm oversize big bore |
264 cc |
13.5-1 |
bore and replate |
cpkx2073c
|
cp mx2073c
|
cp c3289
|
Full Race Series CRF 250R RACING Pistons
Full race series pistons are custom forged
pistons but available off the shelf. These are single ring, high
compression, lightweight pistons which feature a highly efficient dome design that
maximizes squish
without compromising performance. Lateral gas ports are added to maximize ring seal while a
skirt
coating is included to improve power and provide additional lubrication, minimizing friction in extreme
competition conditions.
The full race
pistons come complete with high performance rings, lightweight pins and locks.
|
2004 - 2008 CRF250 R PISTON FULL RACE Trenched Pistons
Stock Bore size is 78mm (3.071") Stock Stroke is 52.2mm (2.055") |
| 78mm std. |
250 cc |
14.0-1 |
deglaze cylinder |
cpkx2100c
|
cp mx2100c
|
cp c7185
|
The part number listed below includes bump pockets to boost compression
further but these can be used ONLY with stock, or stock type concave valves.
They can NOT be used with flat faced valves. |
| 78mm std. |
250 cc |
14.5-1 |
deglaze cylinder |
cpkx2108c
|
cp mx2108c
|
cp c7185
|
2009 CRF250 R PISTON FULL RACE Trenched Pistons
Stock Bore size is 78mm (3.071") Stock Stroke is 52.2mm (2.055")
|
| 78mm std. |
250 cc |
14.0-1 |
deglaze cylinder |
cpkx2066c
|
cp mx2066c
|
cp c7185
|
The part number listed below includes bump pockets to boost compression
further but these can be used ONLY with stock, or stock type concave valves.
They can NOT be used with flat faced valves. |
| 78mm std. |
250 cc |
14.5-1 |
deglaze cylinder |
cpkx2065c
|
cp mx2065c
|
cp c7185
|
2010 - 2012 CRF250 R PISTON FULL RACE Trenched Pistons
Stock Bore size is 76.8mm (3.023") Stock Stroke is
53.8mm (2.118") |
| 76.8mm std. |
249 cc |
14-1 |
deglaze cylinder |
cpkx2071c
|
cp mx2071c
|
cp c3288
|
The part number listed below includes bump pockets to boost compression
further but these can be used ONLY with stock, or stock type concave valves.
They can NOT be used with flat faced valves. |
| 76.8mm std. |
249 cc |
14.5-1 |
deglaze cylinder |
cpkx2072c
|
cp mx2072c
|
cp c3288
|
Project X Platinum Racing Piston, Rod, Gasket Kits for Honda CRF 250R
Developed and proven in the 2009 AMA outdoor motocross season, these championship winning kits have once again changed the game. New for 2010, Project X Platinum Kits feature the same top of the line products that top professionals rely on. The redesigned piston and rod combo gives your engine a lightweight assembly
that is engineered to give you more power and durability. Revolutionary to the industry, these types of assemblies were once only available as custom pieces at custom
prices. Now, off the shelf and available, these kits are just the thing you need to transform your bike into a racing machine without breaking the bank.
- Platinum Kit includes: Full Race Piston, Piston Pin, Piston Rings, Pin Lock rings, Carrillo Rod and Gasket Kit
- Piston Kit includes: Full Race Piston, Piston Pin, Piston Rings, Pin Lock rings for 1 cylinder
- Gasket Kit Includes: Cometic high performance top end gaskets required to replace piston and rod in 1 cylinder
|
2004 - 2008 Honda CRF250R Project X Platinum Kit
Stock Bore size is 78mm (3.071") Stock Stroke is 52.2mm (2.055") |
| Bore Size |
Disp. |
Comp |
Installation
Notes |
Platinum Kit
|
Piston Kit
|
Gasket Kit
|
| 78mm std. |
250 cc |
14.5-1 |
deglaze cylinder, 1mm Smaller Pin/ 2mm Longer Rod Lightweight |
cp kx2p08c
|
cp mx2p08c
|
cp c7185est
|
2009 Honda CRF 250R Project X Platinum Kit
Stock Bore size is 78mm (3.071") Stock Stroke is 52.2mm (2.055") |
| 78mm std. |
250 cc |
14.0-1 |
deglaze cylinder, 1mm Smaller Pin/ 2mm Longer Rod Lightweight |
cp kx2p66c
|
cp mx2p66c
|
cp c7185est
|
2010 - 2012 Honda CRF 250R Project X Platinum Kit
Stock Bore size is 78mm (3.071") Stock Stroke is 52.2mm (2.055") |
| 76.8mm std. |
250 cc |
14.0-1 |
deglaze cylinder, 1mm Smaller Pin/ 2mm Longer Rod Lightweight |
cp kx2p71c
|
cp mx2p71c
|
cp c3288est
|
Cylinder Works CRF 250R Big Bore Kits
Cylinder Works CRF250R Big Bore Kit features and included parts:
- New cylinder, honed to size for easy piston installation
- Piston kit
- Gasket kit
- Virtually Identical in appearance to stock
- Just purchase and install no machine work required on engine for 1mm oversize kits.
- The 3mm oversize kit DOES require a modification to the case to install the big bore cylinder. The modification is necessary to maintain a minimum thickness on the cylinder spigot. The cases must be completely disassembled and then bolted back together after modification.
|
|
Bore Size
|
Disp.
|
Model
Years |
Complete CRF250 Big Bore Kit |
Replacement CRF 250 Big Bore Piston |
CRF250R Big Bore Top End Gasket Kit |
Big Bore CRF250R Piston Ring Set |
| 79mm +1mm oversize big bore |
256cc |
2004-09 |
cw 12001-k01
$549.95 $516.95
 |
|
cw 12001-p01
$0.00
|
|
cw 12001-g01
$0.00
|
|
cw 12001-r01
$0.00
|
|
| 81mm +3mm oversize big bore |
269cc |
2004-09 |
cw 11001-k01
$549.95 $516.95
|
|
cw 11001-p01
$0.00
|
|
cw 11001-g01
$0.00
|
|
cw 11001-r01
$0.00
|
|
