Max Power Inc offers the largest selection of big bore kits for motorcycles and ATV's anywhere. Home of the Ice Cube cylinder. Big bore and stroker kits available for the Honda CRF 250R and CRF 250X. We are your one stop performance shop also selling stock bore high compression pistons, Hot Cams, Web Cams, Athena big bore kits, Hot Rods stroker crankshafts, Rossier exhaust systems, Jardine exhaust systems, Leo Vince exhaust systems, Wiseco pistons, CP Pistons and Cometic gaskets.
Click here to see additional performance options for your CRF 250
| $550 | We Modify your cylinder |
| $0 | No Charge Exchange Cylinder |
| $750 | "Bolt On" - Includes Cylinder |
| $850 | Optional Install and Blue Print |
CRF256R/X STEALTH Specifications: |
Fits 2004 - Current CRF250R/X |
| Bore: Yes | Stroke: No | Actual Displacement = 255.87cc |
| Engine Modifications Included: | |||||
| Cylinder: | OEM Cylinder bored and re-plated with Apticote 2000 | ||||
| Fuel Required: | 91 octane | ||||
| Piston: | Wiseco Piston | ||||
| Gaskets: | Top end gaskets included. | ||||
| Crankcase/Head: | No modification required | ||||
Click Here to order this kit now!
Click here to read what MXA had to say about the CRF264R Stroker
Click here to see the CRF264R Horsepower chart
Click Here to see the CRF264 Torque chart
| $1129 | We Modify your crankshaft |
| $75 | Exchange Crank |
| $1419 | "Bolt On" - Crankshaft, piston, gaskets |
| $500 | Optional Install and Blue Print |
CRF264R STEALTH Stroker Specifications: |
Fits 2004 - Current CRF250R only |
| Bore: No | Stroke: Yes | Actual Displacement = 263.77cc |
| Engine Modifications Included: | |||||
| Crankshaft: | Stroked and balanced OEM crankshaft. | ||||
| Fuel Required: | 91 octane - Options Available | ||||
| Piston: | Wiseco Piston | ||||
| Gaskets: | Gaskets necessary for install included. | ||||
| Crankcase/Head: | No modification required | ||||
Click Here to order this kit now!
| $549.95 | "Bolt On" - Includes Cylinder |
| $849.95 | Installed and Blue Printed |
CRF270R/X STEALTH Specifications: |
Fits 2004 - 2008 CRF250R/X |
| Bore: Yes | Stroke: No | Actual Displacement = 269cc |
| Engine Modifications Included: | |||||
| Cylinder: | Aftermarket big bore cylinder | ||||
| Fuel Required: | 91 octane | ||||
| Piston: | Wiseco Piston | ||||
| Gaskets: | Top end gaskets included. | ||||
| Crankcase/Head: | Requires case machining - instructions included | ||||
Click Here to order this kit now!
Click here to see the CRF276 Dyno Chart
| $899 | We Modify your cylinder |
| $75 | Exchange Cylinder - Additional Charge |
| $1099 | "Bolt On" - Includes Cylinder |
| $500 | Optional Install and Blue Print |
CRF276R/X STEALTH Specifications: |
Fits 2004 - Current CRF250R/X |
| Bore: Yes | Stroke: No | Actual Displacement = 275.67cc |
| Engine Modifications Included: | |||||
| Cylinder: | OEM Cylinder with "ICE CUBE Style" sleeve plated with Apticote 2000 | ||||
| Fuel Required: | 91 - 100 octane | ||||
| Piston: | CP Piston | ||||
| Gaskets: | Top end gaskets included. | ||||
| Crankcase/Head: | Case Mods Required - Click here for details | ||||
Click Here to order this kit now!
Click here to see the CRF276 Dyno Chart
| $749 | "Bolt On" - Includes Cylinder |
| $500 | Optional Install and Blue Print |
CRF276R/X ICE CUBE Specifications: |
Fits 2004 - Current CRF250R/X |
| Bore: Yes | Stroke: No | Actual Displacement = 275.67cc |
| Engine Modifications Included: | |||||
| Cylinder: | Billet Aluminum Cylinder plated with Apticote 2000 | ||||
| Fuel Required: | 91 - 100 octane | ||||
| Piston: | CP Piston | ||||
| Gaskets: | Top end gaskets included. | ||||
| Crankcase/Head: | Case Mods Required - Click here for details | ||||
Click Here to order this kit now!
CRF277R Stealth Big Bore/Stroker
| $959 | "Bolt On" - Includes Cylinder and Crankshaft |
| $500 | Optional Install and Blue Print |
CRF277R STEALTH Specifications: |
Fits 2004 - Current CRF250R |
| Bore: Yes | Stroke: Yes | Actual Displacement = 276.71cc |
| Engine Modifications Included: | |||||
| Cylinder: | Aftermarket cast cylinder with nickel plating | ||||
| Fuel Required: | 91 octane | ||||
| Piston: | Wiseco Piston | ||||
| Crankshaft: | Aftermarket Stroker crankshaft | ||||
| Crankcase/Head: | Case Mods Required - Click here for details | ||||
Notes: Crankshaft balance highly recommended - Add $250
Click Here to order this kit now!
CRF284R Stealth Big Bore/Stroker
| $1660 | We Modify your cylinder |
| $75 | Exchange Cylinder - Additional Charge |
| $1895 | "Bolt On" - Includes Cylinder and Crankshaft |
| $500 | Optional Install and Blue Print |
CRF284R STEALTH Specifications: |
Fits 2004 - Current CRF250R |
| Bore: Yes | Stroke: Yes | Actual Displacement = 283.59cc |
| Engine Modifications Included: | |||||
| Cylinder: | OEM Cylinder with "ICE CUBE Style" sleeve plated with Apticote 2000 | ||||
| Fuel Required: | 91 - 100 octane | ||||
| Piston: | CP Piston | ||||
| Crankshaft: | Aftermarket Stroker crankshaft | ||||
| Crankcase/Head: | Case Mods Required - Click here for details | ||||
Notes: Crankshaft balance highly recommended - Add $250
Click Here to order this kit now!
CRF284R Ice Cube Big Bore/Stroker
| $1350 | "Bolt On" - Includes Cylinder and Crankshaft |
| $500 | Optional Install and Blue Print |
CRF284R ICE CUBE Specifications: |
Fits 2004 - Current CRF250R |
| Bore: Yes | Stroke: Yes | Actual Displacement = 283.59cc |
| Engine Modifications Included: | |||||
| Cylinder: | Billet Aluminum Cylinder plated with Apticote 2000 | ||||
| Fuel Required: | 91 - 100 octane | ||||
| Piston: | CP Piston | ||||
| Crankshaft: | Aftermarket Stroker crankshaft | ||||
| Crankcase/Head: | Case Mods Required - Click here for details | ||||
Notes: Crankshaft balance highly recommended - Add $250
Click Here to order this kit now!
CRF302R/X Ice Cube Big Bore/Stroker
Click here to see what Dirt Rider says about the CRF302
| |
| $2749 | "Bolt On" - Includes Cylinder and Crankshaft |
| $2950 | Installed and Blue Printed (We keep your good cylinder and crank) |
"We tested RPM's awesome Honda CRF302 kit and came away impressed by the horsepower." | |
| Motocross Action Magazine, May 2005 |
CRF302R/X ICE CUBE Specifications: |
Fits 2004 - Current CRF250R/X |
| Bore: Yes | Stroke: Yes | Actual Displacement = 301.02cc |
| Engine Modifications Included: | |||||
| Cylinder: | Tall Billet Aluminum Cylinder plated with Apticote 2000 | ||||
| Fuel Required: | 91 - 100 octane | ||||
| Piston: | CP Piston | ||||
| Crankshaft: | Max Power stroked and balanced long rod OEM crankshaft | ||||
| Crankcase/Head: | Case Mods Required - Click #1 - Click #2 Don't be scared it's not that hard | ||||
Click Here to order this kit now!
Notes: This was and still is the best kit available for the CRF250R or X; heck it might be the best kit we offer for any model. It is no secret that the competition has caught up and there are now other products out there that increase the bore and the stroke. You are probably shopping around right now. However nothing out there holds a candle to the CRF302. We know because we bought them, likely sell them and for sure have tested them. Yes, the 302 is more money, and it does not look stock but the justification is how well this engine runs and how long it lasts. Not to be under stated is it's ability to put an ear to ear grin on your face every time you ride it.(even if you don't do so well in the race)The power and the delivery of the CRF302 is way addictive, deliberate, predictable and fun. It is as if the bike just is happy to be there with you on it's back zippin along. What could be better than riding a 250F that does not get you tired but still has enough nuts to keep you with 450's on the straights? Try getting even close to that kind of power, rideability, and durability with a mod 250F. Not gonna happen, ever. Mod 250F's that lay down 38-40 HP to the wheel are peaky and hard to ride. They also cost the same amount as a 302, have 1/2 the torque, and to be honest, like to blow up. We know because we build them too.
The CRF302 design has been put through the paces; we tested it hard and heavy in 2004 and 2005 during development. To give you an idea, this was hands down the most expensive kit we have ever designed initial testing and R+D costs ran over 50K and are more like 75K today. Yes it was expensive and a bit insane for a company the size of ours, however by doing so we firmly planted our foot in the 4-Stroke market and let people know that this is the best thing available and we are the best guys for the job. Now we have customers world wide that rave about it. From jungle racers in South America (where mechanical failures require a helicopter to lift you out) to Australian tour guides that have logged over 200 hours on one piston. They all agree that durability is a non-factor and they can't say enough about the extra power, torque and the light Honda chassis. If you have a CRF250 or any machine for that matter, love to ride, and are in the market for a big bore / stroker don't be shy, e-mail us or give us a call and let’s see what we can do to help get you on one. Also, if you want something more than 302cc or have a specific displacement you need to be under we can do that as well. Just e-mail us This e-mail address is being protected from spambots, you need JavaScript enabled to view it