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BOOM 250cc 6 Speed EFI Fuel Injection Dirt Bike Motorcycle Bike Street Bike Motorcycle (BLACK)

  • Based on 13 reviews
Condition: New
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Availability: In Stock.
Fulfilled by L7 MOTORSPORTS

Arrives Thursday, Jun 26
Order within 6 hours and 56 minutes
Available payment plans shown during checkout

Color: BLACK


Features

  • 250 EFI Dirt Bike brought by BOOM .***Kindly be aware that the Manufacturer Statement of Origin (MSO) and Bill of Sale paperwork will be sent to you by separate mail.
  • 6 Speed mannal transmissionAllows the engine to run at a lower RPM and save fuel,most effective at highway driving speeds.
  • 17" front and rear tiresWell-suited for off-road adventures, offering improved ground clearance, stability, traction, and comfort in demanding conditions.
  • Equipped with a 223cc engineOffers a good balance of power, fuel efficiency, and maneuverability, making it a suitable choice for riders seeking a versatile off-road experience.
  • For Transportation issues, we will ship this item 95% assembled. Just need to connect the battery and install the rear view mirrors by youself.
  • Please make sure there is no problem with the product and you will keep it before registering it. Do not purchase license and title it prior to receiving the package.

Description

Displacement 223ml Engine Single Cylinder,6 speed Bore & Stroke 65.5mm×66.2mm Cooling System air cooled Compression Ratio 9.25:1 Fuel feed 92 Max Power( Kw/rpm) 10.8/7500 Max Torque(N.M/rpm) 15/6000 Max Speed 110km/h Ground clearance 150mm Fuel consumption 2.9L/100KM Ignition CDI Fuel tank capacity 15L Starting System Electric+kick start Front Brakes double Disc brake Rear Brake single Disc brake Front suspension Hydraulic Suspension Rear suspension Hydraulic Suspension Front tires 120/80-17 Rear tires 150/70-17 Wheel Base 1430 mm Payload 150kg Net Weight 180kg Gross Weight 200kg Packing type Steel + Carton LWH 863042” Packing size 752237”

Manufacturer: ‎KUNHAO


Brand: ‎KUNHAO


Model: ‎BD7


Item model number: ‎BD250-7


Exterior: ‎Painted


Manufacturer Part Number: ‎BD007


Date First Available: August 8, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Jun 26

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


  • Nice Bike, Incredible Deal
The whole buying experience has been very good. The seller is very responsive and attentive. The motorcycle arrived earlier than expected and without a scratch. The shipping carrier communicated well, and arrived at the time that was arranged. There was very little to assemble. The video provided by the seller showed exactly what to do. After assembly, charging the battery and filling with gasoline, the motorcycle fired on the first crank. Although it is cold at my location, I took it out for a little ride and was very impressed. Remember to use only PREMIUM gasoline. At about 100 miles I'll change the oil. I recommend Lucas synthetic motorcycle oil, 10/40 in cool weather and 20/50 in the summer. It's a very nice looking bike. The pictures do not do it justice. The riding position is very comfortable. Build quality is very good. The welds on the frame are smooth, seat upholstery is good quality. I really can't find anything to complain about. Remember if you buy one, you will most likely be the mechanic, but if you can maintain a lawn mower, you can probably maintain this motorcycle. Should you buy one? Yes. Buy two, so that you and a friend can go for rides. Added info one month after purchase: The little bike is running great, no problems after 30 miles or so. I did change the oil first thing to a good synthetic 10/40 motorcycle oil because I don't trust the oil that comes in them originally. It seemed okay, but it never hurts to change the oil. It takes 1.2 liters. That isn't noted in the owner's manual. If there is one thing that's lacking, it's the manual. It's very non-specific and vague. Still too cold for much riding, but I'm noticing the engine running more free after each ride. It seems to be running-in nicely. I've added bar-end mirrors (personal preference), a windshield, a small tank bag and a small tail bag for carrying goodies. There is room enough under the seat to slip straps for bags. That's handy. I'm still very happy with the bike and anxious to actually ride it for longer than a few minutes. ... show more
Reviewed in the United States on January 17, 2025 by Jaxon Jaxon

  • DO NOT BUY!!! Please, you will regret it.
Color: BLACK
***DO NOT BUY*** This is my second bike. I live in a high theft area and I lost a bike and I was looking for another beginner bike. But for this bike, Where do I start? First of all, the bike came in, not in the packaging depicted in the video, it came in on two double stacked pallets completely messed up. The packaging was in shambles and the delivery driver essentially told me that I neededto return it. I inspected it on the truck and didn’t see any damage to the body so I allowed him to offload the bike. My first mistake. Once I began inspecting the bike so I could take it out, I discovered that the front brake lever had been completely broken off and the battery was missing. I contacted the reseller, Dallas Power Sports, who assured me that the brake lever would be ordered and a tracking code would be sent to me. That never happened. After a week I contacted them again and told them I also needed the battery that never showed. Both items were promised and eventually the brake lever did show up. As of about 6 weeks later, the battery is still showing as “waiting for package”. I ended up ordering my own Chinese battery that fit the dimensions of what I measured and put it on. Still to this day, I have not received the battery promised to me. Here is the fun part! Once I got it running normally, I tried to go and get it registered and titled after I had already insured it, and guess what? The reseller, Dallas Power Sports, didn’t fill out the paperwork correctly for Texas registration and again I had to contact them. I had to pay an additional fee of $232 to get them to get me an eTag and start the process of registering, titling, and fixing the issues I brought forth weeks before. So I get my eTag and everything is going well. I’m getting ready to send my paperwork back to them so that they can do the paperwork with the DMV from their end and get my actual tags and registration. As that is happening, I have done all the maintenance that I could possibly do to this bike. I changed the oil, installed the brake lever (that finally came in) adjusted the chain, changed the brake fluid on both the front annd back end, and I installed custom lighting, the whole 9 yards. This isn’t my first bike but it is my first bike in a while so I thought it would be be a good refresher. This is important to bargain hunters. Today, (4/25/25) as I’m getting ready to register and tag my bike officially, and the shifting lever completely fell off, while in 3rd gear and on a public road. Mind you, I had my 13 year old son with me and we had to low speed it (less than 20 mph) back to the house. TLDR:I order from Amazon almost daily and I almost never give reviews, but this experience is something I had to review because it’s so much money and this experience has been nothing but pure chaos. DO NOT buy this bike, especially from Dallas power Sports. I will update with their actual name if I messed it up, I’m taking their name from the paperwork they sent me. Go and buy a Honda Shadow, Harley Sportster, or an Indian. Yes, they may be more expensive, but you can guarantee quality. Do not make the same mistake I did, please. This isn’t one of those weird, one off, reviews. Please, even if they respond with something resembling sympathy or “willingness” to make it right, they won’t. You’re still buying a terrible bike, with horrible shipping, zero follow through as far as customer service, and overall a crappy bike. Buy it, and good luck, I warned you. I ordered my bike through Affirm and I am now expected to pay the balance even though my bike is now exclusively secluded to my garage. I have seen so many posts on other products that single out a certain product for dumb reasons. This is not one of those posts. Do not buy this bike or anything from Dallas Power Sports. ... show more
Reviewed in the United States on April 30, 2025 by Casey Crooks

  • Looks great!
Everything arrived safe and in one piece. It was mostly put together. I went through the bolts and checked everything. They did a solid job putting it together. The only things I needed to do were handle bars, chain tension, tighten down an exhaust manifold bolt, battery leads, and mirrors. The manual recommends re-tightening the bolts after the first 100km due to vibrations (makes sense). Locktite can cure that. Nice little bike. I'm 5'8", and my heels are slightly off the ground while sitting on it. Update: I’ve put about 1,000 miles on the bike. Lessons learned… 1)The ECU: - It runs the engine very lean. Do monitor the spark plug and try to fix it during break-in. 2) The EFI: - Mine started sending a wildly bad reference voltage to the TMAP sensor around 540 miles (just shy of break-in period). Either the wiring was damaged or my ECU was partially bad. I had to gut my EFI system and replace with a carburetor. The carburetor made a world of difference. 3) The corrosion: - Pay very close attention to the hardware and linkages (shifter hinges). The components on this bike need to be inspected and treated with corrosion preventative compounds on a regular basis. Avoid letting dust or water sit on this thing. The powder coating will easily scratch off from keys or just road debris. 4) The engine: - It’s a very tame and quiet engine overall. I find it struggles to get over 50mph uphill carbureted or EFI (I weigh about 150lbs). It’s top speed is right around 68mph on a flat. Not a highway bike, at least in stock configuration. - It’s possible to modify the 165FMM-P (~5psi boost) or just swap in a slightly larger HS174YMN engine altogether. 5) Maintenance: - Don’t get this bike if you’re not willing to wrench on it. ... show more
Reviewed in the United States on February 12, 2025 by matthew matthew

  • Excelente 👌
Color: BLACK
Excelente 👌 lastima que no hay más oferta como esta me hubiese gustado adquirir otra
Reviewed in the United States on April 20, 2025 by Aryenis Fonseca Galan

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