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Twenty5 DS Chopper Stretch Cruiser E – Bike, 26″ Wheels, 800W Motor, Disc Brake, for Men, Black

Original price was: $80.54.Current price is: $37.39.
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Ubesgoo 2 – Stroke 50cc Engine Kit Fits Most 26″ or 28″ Wheeled Bikes with V – Frame for Bicycle Mountain and Road Bike Gas Motorized Motor Bike

Original price was: $56.48.Current price is: $36.02.

SKU: IMOI78105 Category:
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Description

Tips:
Before install the engine, please lubricate the inner components first and you should pour some lubricating oil into the cylinder bore from the spark plug hole, then drain off the lubricating oil and install the engine. Please keep in mind that the motor will use a mix of gasoline and oil. The oil is used as a lubricant. Without it, the performance andlongevity of the motor will be reduced.

-This 2-stroke 50cc engine kit is perfect to upgrade the regular bike to a motorized bike, you can enjoying riding at a faster speed, which can reach 30km/h as fast as a motorcycle or scooter

-Fits most 26″ or 28″ wheeled bikes with V-frame. The frame should have 9-11″ of clearance between the bottom bracket and top bar, and the diameter of the frame tubes should be 25-29mm (around an 1″)

-Key parameters: Max. power 1.6Kw/6000r/min (3 horsepower/6000r/min),Super fuel-efficient, only consuming 1.5L fuel/100km

-Lubrication Oil: oil for 2-stroke petrol engine (or oil for 10W/40.10W/30); Mixing Ratio of Fuel and engine Oil: 16:1 for new sets, 20: 1 after running 500km

-Mode of Engine: Single cylinder, air-cooling, 2-stroke Natural air cooling; The rider needs some basic hardware tools, skills and around 2-3 hours to install. Add some lubricant into the air cylinder before starting

Specifications:
1. Engine Mode: Single Cylinder, Air-cooling, 2-stroke
2. Bore & Stroke: 40mm x 38mm=48 cm3
3. Rated Power: 1.15Kw/5000r/min (1.6 horsepower/5000r/min)
4. Max. Power: 1.6Kw/6000r/min (3 horsepower/6000r/min)
5. Ignition Mode: CDI
6. Compression Ratio: 6:01
7. Driving Ratio: 18:01
8. Fuel Type: No.90
9. Type of Sparking Plug: Z4C 14MM
10. Volume of Oil Consumption: 1.5L/100km
11. Type of Clutch: Friction Plate / Dry
12. Cooling Mode: Natural Air Cooling
13. Speed Limitation: 30km/hour
14. Lubrication Oil: Oil for 2-stroke Petrol Engine (or Oil for 10W/40.10W/30)
15. Mixing Ratio of Fuel and Engine Oil: 16:1 for new sets, 20: 1 after Running 500km
16. Net Weight: 22.05 lbs / 10 kg
17. Suitable for: 26″ or 28″ Bicycle

Package Includes:
1 x 50cc Engine Kit

Reviews

★★★★★

"Arrived in perfect condition, well protected. The color matched the listing exactly. It's handled my daily dog walks without issue. No complaints so far."

Carol Allen Carol Allen Jul 21, 2026
★★★★★

"Ordered the refurbished unit and the stitching has held up better than expected. Tested it through a full week of rain. I'm in Kansas City, MO. Happy with my purchase."

Linda Collins Linda Collins Jun 18, 2026
★★★★★

"Picked the blue one and it fits true to size with no surprises. It's been on my nightstand since it arrived. Scent is lighter than I pictured, which I prefer anyway. Happy with my purchase."

Benjamin Brooks Benjamin Brooks May 16, 2026
★★★★★

"Got the olive green and the weight feels balanced and premium. Brought it to a tailgate and it performed. Color is slightly darker than the listing photo but I actually like it. Five stars from me."

Patrick Diaz Patrick Diaz Jul 2, 2026
★★★★★

"Got the charcoal one and the zipper glides without catching. Tested it through a full week of rain. Worth the money."

Nicole Flores Nicole Flores Jul 27, 2026
★★★★★

"Chose the stainless version and the zipper glides without catching. It lives in my gym bag now. Customer service was helpful when I had a question."

Paul Patel Paul Patel Aug 12, 2026
★★★★★

"Packaging was secure and nothing moved. I use it in the garage most evenings. I'm in Orlando, FL. No complaints so far."

Katherine Phillips Katherine Phillips Jun 7, 2026
★★★★★

"Packaging was secure and nothing moved. Took it to the lake house for the weekend. I'm in Columbus, OH. Couldn't ask for more at this price."

Robert Stewart Robert Stewart May 8, 2026
★★★★★

"Tracking info was accurate the whole way. It's handled my daily dog walks without issue. One minor scuff on the corner, purely cosmetic. Worth the money."

Shirley Allen Shirley Allen Aug 12, 2026
★★★★★

"Came earlier than the promised date. It's handled my daily dog walks without issue. Packaging tape was loose on one end, product was fine. Exactly what I needed."

Elizabeth Sanchez Elizabeth Sanchez May 25, 2026

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