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142F 4-Stroke 49CC Bike Engine Motor 49cc Dual Chain Drive Bicycle Motor Kit Petrol Gas Engine 4 Stroke Bicycle Engine Kit with Air Cooled with Two Chains

  • Based on 23 reviews
Condition: New
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$195.00 Why this price?

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Availability: In Stock.
Fulfilled by Royan-LMJ

Arrives Dec 28 – Dec 30
Order within 11 hours and 22 minutes
Available payment plans shown during checkout

Features

  • AdvantagesThis 49cc 4-stroke pull-start gasoline conversion kit is used to upgrade a normal bike to an electric bike, after modifying the bike, you can enjoy faster riding speed, up to 38km/h. It runs almost as fast as a motorcycle or scooter, making your outdoor travel more convenient, and the four-stroke is more stable, reliable, and quieter
  • SpecificationsEngine model: 142F, Bore x Stroke: 41.8 x 36 mm (1.65 x 1.42 in), Displacement: 49 cm3 (2.99 cu in), Compression ratio: 8.0 : 1, Net horse power output: 1.6KW (2.1 HP) at 7,000 rpm, Net torque: 2.7 NM (2.0 lbs ft) at 4,500 rpm
  • ApplicationsThis engine kit is suitable for most 26" or 28" bikes with V-frame, suitable for normal 28" V-frame bikes and 26" ATV bikes, all with 28-40mm frame tube
  • SystemPTO shaft rotation: Counterclockwise (from PTO shaft side), Ignition system: Transistorized magneto ignition, Starting system: Recoil starter, Carburetor float type, Lubrication system: Forced splash, Governor system: Centrifugal mechanical
  • Please NoteChain model is 428 chain. This product comes with a twist grip throttle, not a thumb throttle
  • TipsThe motor is equipped with two chains. One is inside and the other is outside. If your bike has one piece cranks you will need a European Bottom Bracket Adapter for the wide cranks to be installed.

Brand: Futchoy


Speed: 7000 RPM


Voltage: 12 Volts


Horsepower: 2.1 hp


Product Dimensions: 1.65"W x 1.42"H


Item Weight ‏ : ‎ 31.97 Pounds


Date First Available ‏ : ‎ April 11, 2022


Manufacturer ‏ : ‎ Royan-LMJ


Country of Origin ‏ : ‎ China


Best Sellers Rank: #983,445 in Automotive (See Top 100 in Automotive) #667 in Powersports Engine Kits


#667 in Powersports Engine Kits:


Customer Reviews: 3.5 3.5 out of 5 stars 23 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Dec 28 – Dec 30

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.

  • Klarna Financing
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  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Exactly as advertised
This is the cheapest version of this kit I could find here and all the parts are there and in great shape. The instructions aren't great but Project Farm did a 4 stroke bike video with this kit and I'm using that as a guide so its nice that this is the exact same kit. This is not a plug and play Ikea furniture type deal so be aware you will need some specialized tools and knowledge about bikes, motorcycles, or engines in general. Still a stellar piece for this price, customer service was also very helpful and shipping was fast. ... show more
Reviewed in the United States on October 26, 2022 by Kai

  • This motor
Very good quality for the money minus the clutch it blew in the first day of riding less then 5 miles on the bike sadly but what are u going to do also the cast iron mount broke because I over tightened it my fault and the motor with the mount didn't fit I hade to modify the frame sadly but it workes now honestly I would rather have a 2 stroke motor kit with a aftermarket exhaust and pull cover cool for the build tho I'm still waiting for a refund that I was promised and did not receive ... show more
Reviewed in the United States on June 14, 2023 by Lorraine Bona

  • It had potential
I don't know why someone doesn't make a clutch that works on these kits! It seems good for the money, but the clutches make it useless
Reviewed in the United States on August 17, 2023 by moxie mainer

  • Make sure you have enough room
It's a very good running motor. Tight fit but can work in the right bicycles. Fast delivery and easy to install.
Reviewed in the United States on May 19, 2023 by Denise Hicks

  • Great customer service
Had a couple of problems at first but the seller has made sure I'm satisfied
Reviewed in the United States on May 22, 2023 by Donnie Fitzgerald

  • help
in possible to figure out wich clutch is right replacement any help burned it up in first week
Reviewed in the United States on May 17, 2023 by tony

  • Does NOT fit a 26" bike frame!!!
I Bought it because it says it fits a 26" bike frame. IT DOES NOT!!! it might fit a beach cruiser or a "girls" but doesn't fit a standard 26" bike or mountain. FALSE ADVERTISEMENT. Everything appears to be there, and in good condition
Reviewed in the United States on March 15, 2023 by Raymond Jones

  • Garbage
The motor mounts came cracked, the clutch blew in 4 days of soft riding and the pull start handle cracked . Do not buy this just buy a predator 79cc instead.
Reviewed in the United States on January 31, 2023 by Michael Inglesby

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