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X-PRO

X-PRO 250cc 4-Stroke 5 Speed Dirtbikes Pit Bikes Zongshen Engine Motor with Manual Transmission Electric/kick Start

  • Based on 29 reviews
Condition: New
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Availability: Only 3 left in stock, order soon!
Fulfilled by XPROUSA
Arrives Oct 26 – Oct 28
Order within 12 hours and 37 minutes
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Features

  • 249.9cc Dirt Bikes Engine Motor.
  • This engine assembly comes with Start lever, Shift lever, Intake Pipe, Drive Sprocket, Sprocket cover & Spark Plug, but doesn't come with Carburetor, Battery, CDI, Voltage Regulator, Ignition Coil etc. Best of all, it comes with High quality aluminum cylinder head and iron cylinder body.
  • When purchasing this engine, please pay special attention to whether the plug-in is compatible with your bike. If it not, you need to purchase an additional plug-in for modification.

Description

Brand New 250cc 4-stroke Zongshen Dirt Bikes Pitbike Engine Motor with Manual Transmission Electric/Kick Start Engine Mode: ZS172FMM-3A Engine Name: CB250-F Engine Type: Single cylinder,4-stroke,air-cooling, camshaft upward Displacement(ml): 249.9 Dimension(mm*mm*mm): 303Ă—324Ă—429 Net Weight(kg): 32 Max.Power(kw.r.min): 14*(8500+-5%) Max.Torque (N.m.r.min): 18*(6500+-5%) Compression Ratio: 9.25:1 Bore and Stroke(mm*mm): 72x61.4 Ignition method: CDI Lubrication method: Pressure and Splash Min.Fuel Consumption(g.Kw.h): is equal or lesser than 354 Starting method:Electric/Kick Clutch method: Manual Wet Multi-Plate Gearshift Method: Constant mesh,two stage transmission,5-speed Gearshift

Brand Name: X-PRO


Number of Items: 1


Manufacturer: X-PRO


Part Number: 308-999050


Best Sellers Rank: #1,109,602 in Automotive (See Top 100 in Automotive) #481 in Powersports Engine Kits


ASIN: B09VKG3TS1


Customer Reviews: 4.2 out of 5 stars (29)


Speed: 5 rpm


Horsepower: 18.7 hp


Item Dimensions W x H: 12.76"W x 16.89"H


Material Type: Aluminum


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Oct 26 – Oct 28

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Similar Products

Top Amazon Reviews

    • I fit it in a crf230f with minor modifications.
Review Image by Matt
Review Image by Matt
Perfectly packaged with bubble wrap for shipping protection. Another review mention a crf230f as a direct drop-in but be prepared to do modifications. Once I successfully installed it & after a few heat & cooling cycles, I changed the shipping oil to 10w40 conventional. I gently ran it through some gears to run it in within the same day I received it from UPS. Seems like a good engine with easy clutch pull & standard 1 down 4 up shift pattern. Sleek engine that looks good in the bike. ... show more
Reviewed in the United States on July 9, 2025 by Matt
    • Powwwwaaaaa
Review Image by Turner Berry
Review Image by Turner Berry
Great motor for the money! Was pretty much a direct swap in for my 1984 Honda ATC200X. Now we have electric start and way more power than the stock motor had. It's taken a beating for months now and hasn't missed a beat.
Reviewed in the United States on September 1, 2025 by Turner Berry
    • Fits in 1983-1985 honda 200x frame
Review Image by Nick
Review Image by Nick
Review Image by Nick
Review Image by Nick
Seems like a well built motor. I had bought one and it came damaged from shipping. Seller respoded right away and allowed me to return damaged one and got another one. Came shipped good 2nd time!đź‘Ť i was able to fit this motor in my 1985 honda 200x frame. Way more power then 40 year old honda 200x motor and good price! Like i said SEEMS well built. In the proccess of breaking in the motor, doing a couple heat cycles! No leakes as of rn(knock on wood)Had to do some mods to get it in but all mounting bolts line up pretty good! You have to ethier A:cut frame bar at bottom wich i did not do istead i dremmeld the oil bolt flange down on motor as far as i could, then i cut tiny notches on both sides of the bar that runs across on bottom of frame. I then hammerd down in the middle giving me space to fit the motor in without damaging frame to much. ... show more
Reviewed in the United States on August 18, 2026 by Nick
    • Vertical only, big motor
Review Image by Connor
I liked that it came as advertised and un damaged unfortunately it’s insanely big I was trying to fit this on my grom but it’s angle is going to require custom motor mounts also just a heads up this motor does not want to be at an angle what’s so ever I’m pretty sure it’s from the xpro 250 storm dlx so it’s meant to sit like a dirt bike ... show more
Reviewed in the United States on November 27, 2024 by Connor
    • Amazing motor
Amazing company ! If there are any issues they will take care of it. This motor runs smooth, very good quality! Ty
Reviewed in the United States on February 4, 2026 by Mustangboy2011$
    • Great little engine for a Honda XR250R.
I mounted this engine onto a 2002 Honda XR 250 R. With some slight modification to the motorcycle frame this engine fits well for that application. Once I hooked everything up, the air engine started right up and seems to be very reliable.
Reviewed in the United States on March 29, 2025 by Alex Simatos
    • Junk
I bought this motor new does not have three hours on. It would not run right new wiring harness new carburetor still wouldn’t run right kickstart don’t work turn motor and starter over at the same time. Don’t buy save your money.
Reviewed in the United States on April 13, 2025 by Michael
    • Best engine
I've put this engine in an crf 80 cc from and it's amazing expensive but put the right racing or performance parts in it and you got an race bike
Reviewed in the United States on February 26, 2025 by Anthony Lear

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