2009 HONDA CRF450R ROLLING CHASSIS

+ 1994 HONDA CR250R ENGINE

ALUMINUM-FRAME 250 TWO-STROKE CONVERSION PROJECT – $2,500

If you’ve been looking for the foundation to build your own aluminum-frame Honda CR250 two-stroke, here it is.

This package includes an excellent-condition 2009 Honda CRF450R complete rolling chassis along with a 1994 Honda CR250R two-stroke engine package. The previous owner’s plan was to install the legendary CR250R engine into the modern aluminum CRF chassis and build a serious custom Honda two-stroke.

The project was never completed, so the next owner gets to finish it exactly the way they want.

2009 HONDA CRF450R ROLLING CHASSIS

The CRF450R chassis is in excellent overall condition and provides a very clean starting point for a conversion.

It features:

• Excellent-condition aluminum frame

• Complete rolling chassis

• New front fender

• New radiator shrouds

• New side number plates

• New rear fender

• New front number plate

• New graphics

• Renthal handlebars

• Renthal rear sprocket

• Footpegs

• Rear brake pedal

• Complete front and rear suspension

• Front and rear wheels

• Black-painted rims

• Braking components

• Swingarm and linkage

• Radiators and associated chassis components

The chassis presents extremely well and is ready to become the foundation of a killer CR250-powered aluminum-frame build or whatever else you want to use it for!

1994 HONDA CR250R TWO-STROKE ENGINE

Also included is a 1994 Honda CR250R engine package.

These original Honda CR250 components are becoming increasingly difficult and expensive to find. Good OEM engine cases alone can command substantial money today, making this a valuable engine package even before considering the rest of the components.

Engine features include:

• Original Honda CR250R engine cases in good condition

• Complete transmission in good condition

• Original rebuildable Honda crankshaft

• Original cylinder

• Standard-bore cylinder currently suitable for rebuilding/machining

• Keihin carburetor

• Reed assembly

• Clutch components

• Cylinder cover and associated loose components included

• Additional engine components included as shown

ENGINE CONDITION

The engine should be considered a rebuild project and is NOT being represented as ready to run.

The recommended build would include:

• Rebuild or replace the original crankshaft

• New main bearings

• New crank seals

• Complete gasket and seal set

• Machine/bore cylinder as required

• New piston

• New piston rings

• Inspect and service the clutch while apart

• Inspect all internal components during assembly

The original crank is rebuildable, and the transmission is reported to be in good condition.

The package is missing the intake/reed boot, and a clutch-related washer was also noted as missing. Buyers should carefully review the photographs and video to verify exactly what components are included before purchase.

BUILD YOUR OWN ALUMINUM-FRAME CR250

The concept behind this project is simple:

Take one of Honda’s legendary 250cc two-stroke engines and install it into a later-generation lightweight aluminum CRF chassis.

Done correctly, the result can combine the explosive power, sound, simplicity, and character of the classic CR250R with the handling, suspension, braking, and ergonomics of a modern-generation Honda chassis.

The conversion fabrication has NOT been completed.

The previous owner planned to have the chassis professionally modified and mocked up for the CR250 engine. He estimated approximately $2,000 in fabrication work, although actual cost will depend entirely on the fabricator, specifications, and level of finish desired.

This is being sold as a project package, not a completed conversion.

WHY SELL IT?

The previous owner originally intended to complete the conversion with his son, but like a lot of enthusiasts, they accumulated more projects than they had time and budget to finish.

Rather than letting a great chassis and increasingly desirable Honda two-stroke engine continue sitting in storage, they decided to offer the entire package to somebody who will finish the build.

$2,500 FOR THE PACKAGE

For $2,500, you’re getting the basis for an extremely cool Honda two-stroke conversion without having to spend huge money buying a completed custom machine.

Source the remaining rebuild components, have the chassis professionally fabricated for the CR250 engine, and build it mild or wild.

Stock-style 250.

Ported engine.

Big-bore.

Full race build.

The direction is entirely up to the next owner.

We would prefer to sell the chassis and engine together as one package. However, serious inquiries regarding individual components may be considered.

PLEASE NOTE

This motorcycle is being sold as an unfinished custom project.

The CR250 engine requires rebuilding before use. The CRF450R chassis has not yet been modified to accept the CR250 engine. Custom fabrication, mechanical assembly, parts sourcing, fitting, tuning, and final inspection will be required before operation.

Please review all photographs and video carefully and ask any questions prior to purchasing.

Worldwide shipping assistance is available. We can help arrange delivery directly to your door.

If you’ve always wanted to build a modern aluminum-frame Honda CR250 two-stroke, most of the hard-to-find foundation is sitting right here.

2009 Honda CRF450R rolling chassis.
1994 Honda CR250R two-stroke engine.
One seriously cool project waiting to be finished.

Give us a call with any questions.

Thanks for looking, and God Bless America.

Vin - JH2PE05349K704343

WHY SHOULD YOU BUY FROM KAPLAN? WHAT DO YOU GET?

“You are buying from the Kaplan Cycles Family. We are not just another big auction house. We are family-owned and operated and have been buying, servicing, and selling motorcycles since 1975. You will work directly with Ken Jr., Ken Sr., and/or one of the 30+ experts on our team. We provide museum-quality, white-glove concierge service from start to finish. Every motorcycle we sell is inspected, serviced, and supported by our team, and we stand behind it after the sale. You’re not on your own — we back what we build and what we sell.

With over 17,000 units sold and still 100% positive feedback, we are the best stress-free buying experience you can have. From the first call to delivery at your door, we will handle it all — because vintage motorcycles deserve support, and so do you.

With every bike we curate you get:
• museum-level inspection & preservation services
• every machine is professionally evaluated, serviced, & rotisserie detailed
• all critical systems are checked, adjusted, or renewed
• you get professional setup, tuning, and delivery prep
• done by the best experts in the industry — we ride and restore every day
• you get post-sale phone support
• you get white-glove, insured, always-enclosed shipping to your door anywhere in the country

You’re buying from Kaplan Cycles at the New England Motorcycle Museum, one of the largest vintage motorcycle collections in North America. Free museum tours and tickets are included with every bike sold. With every bike you purchase, a portion of the proceeds is used to support, continue, and improve the 501(c)(3) nonprofit New England Motorcycle Museum.

You don’t just win an auction — YOU are creating & helping to preserve motorcycle history, and you become part of our family, a Kaplan Cycles client for life.

We do not take new clients off the street.
We do not service bikes purchased elsewhere.
We only take new exclusive clients who purchase a motorcycle from us.

You get a guided purchase experience with, and from, the experts who care about the bike as much as you do. If there’s a problem, you don’t get ghosted. You call us — you will have our cell phone numbers — we will answer your call on weekends, and we will help make it right.

Auction platforms = listing only. No support. No accountability.

Kaplan Cycles = we stand behind what we sell.

You are buying museum-curated provenance. That means:
• expert evaluation
• documented condition
• professional presentation
• long-term preservation mindset

You’re not just buying a motorcycle — you’re buying a curated piece of motorcycling history.

From the #1 family in this business — Kaplan Cycles & the New England Motorcycle Museum.

Sincerely,

Ken Kaplan Sr.
12/28/2025”

AUCTION TERMS:

All motorcycles & vehicles are sold as-is where-is.

Kaplan Cycles guarantees all motorcycles are as-described. Please read the entire description and watch the entire video before bidding.

A non-refundable deposit is due immediately on purchase. PayPal or Credit Card is accepted for the deposit.

Cash (In-Person), Card (+3% fee), or Wire Transfer are our only accepted forms of final payment.

Full payment must be made within 7 days of auction close.

Your motorcycle must be picked up within 30 days of auction close. 

Exceptions are made only for international buyers OR buyers who have ALREADY made transport arrangements with a third party.

If a motorcycle is purchased and left here for longer than 30 days without written permission from Kaplan Cycles it will be resold. In the case of a re-sale, the owner will be entitled to a refund less storage fees ($25/ day beginning 30 days from auction close) ONLY if the motorcycle was paid in full on-time within the auction terms.

We always describe our motorcycles as accurately as possible.

You are purchasing a classic motorcycle. Even in cases where a bike may be in good running/ operating condition, new problems & idiosyncrasies can arise over-time from sitting or regular use.

If you have an issue with the motorcycle you’ve received, contact us within 24 hours of delivery and before leaving feedback so that we can address your concerns.

It is important you have at least a basic mechanical knowledge before purchasing and operating a classic motorcycle.

Due to our backlog, we cannot perform any additional service work or modifications on your motorcycle after the sale (ie; adding a light kit, different tires, etc.)

We respond quickly between the hours of 9am and 5pm EST, Monday - Friday

For our fastest service please call Ken Kaplan Jr directly at 860-471-0192

We will not charge out-of-state buyers sales tax.
Out of state residents will pay sales tax with their DMV. 

We are not a registering dealership. You will receive only the documents required to register your vehicle in your state.

In our listings, title status is always listed directly below the main description.

In some cases we will sell motorcycles without title or registration. In these cases we guarantee all motorcycles sold are free and clear. We will always provide a route to obtaining title. Generally in these cases, the motorcycle will be sold at a discount to accommodate expenses involved.

Documents are mailed via USPS priority mail with a tracking number. Please allow up to 14 days after payment in full for your documents to be processed and mailed.

Keys will be shipped with the motorcycle.

Warranty:

All Motorcycles sold "as is, where is" and Kaplan Cycles does not warranty any motorcycle sold. No express warranty and/or implied warranty are made by Kaplan Cycles. No statements by us give an implied warranty.

SHIPPING:

SEND US YOUR ZIP FOR A SHIPPING QUOTE!
WE WILL MAKE ALL ARRANGEMENTS!

We have the best shipping contacts in the nation who will provide the FASTEST transport times, have a perfect track record, and are always insured and ENCLOSED! All motorcycles are shipped WHOLE (roll-on, roll-off). We do not offer a pallet or crate service.

International shipping specialist contacts are available! They will assist in ground freight, customs clearance, and ocean freight to your country. International buyers will be required to work directly with our third party shipping contacts.

We strongly recommend you insure your motorcycle at the time of purchase.

PICKUP:

We require a 24 hour notice prior to pick-up. Please call us at 860-454-7024 during office hours Monday – Friday 9am – 5pm EST.

We will provide ramps, a dock for loading, and assistance to load for free.