Upgraded Bicycle Engine Kit, 2 Stroke Motorized Bike Engine Motor Kit 100cc Super Fuel-efficient Fit Modified Full Set for 26"-28" Bikes
Overview
The Tipyoumall Upgraded 100cc 2-stroke bicycle engine kit is a complete gasoline conversion package designed for 26"–28" framed bikes. It gives cyclists a lightweight (11 kg) way to add motorized assistance with a rated output of 3.2 kW (at 5,500 rpm) and a top speed around 48 km/h under ideal conditions. The air-cooled, CDI-ignition engine uses a kick start, sprocket drive and a compact 2 L fuel tank, making it suited to short commutes, campus runs, farm chores and DIY custom builds. Buyers should expect basic mechanical installation, two-stroke fuel/oil mixing, and to verify local regulations — the kit trades long range and emissions for simplicity, low weight and easy retrofit compatibility.
Key Features
- Engine type: 100cc, two-stroke gasoline engine with bore & stroke 50 mm x 40 mm and compression ratio 6:1.
- Power and speed: Max power 3.2 kW at 5,500 rpm; advertised top speed approximately 48 km/h (terrain and load dependent).
- Starting and drive: Kick start with sprocket transmission (transmission ratio 18:1) for direct rear-wheel drive.
- Fuel & capacity: 2 L fuel tank, recommended 90# gasoline; listed fuel consumption ~5 L/100 km; lubricating oil: two-stroke oil.
- Build and fit: Air-cooled, CDI ignition, spark plug model Z4C 16MMM, net weight 11 kg, fits standard 26"–28" bicycles; carton size 47 x 43 x 17 cm.
Pros & Cons
Pros
- Complete retrofit kit: includes engine, sprocket drive and necessary accessories to convert a 26"–28" bike.
- Compact and light: 11 kg net weight minimizes change to bike handling compared with motorcycle conversions.
- Decent power for urban use: 3.2 kW (5500 rpm) provides brisk acceleration and a practical top speed near 48 km/h.
- Fuel-efficient for a 2-stroke: manufacturer listing of 5 L/100 km means modest fuel costs for short trips.
- Simple mechanics: CDI ignition, kick start and sprocket transmission are straightforward to maintain and repair.
Cons
- Limited range: a 2 L tank only provides roughly 30–40 km under mixed use before refueling.
- Two-stroke drawbacks: higher noise, smoke and emissions than four-stroke alternatives.
- Installation and fit: requires mechanical skill and the right frame geometry—may not fit all bike frames or forks.
- Legal/regulatory limits: many areas require registration, speed limits or prohibit motorized bicycles without licensing.
Recommendations
- Commuters with short routes (under 40 km) who want faster trips without a full motorcycle.
- DIY bike modifiers and hobbyists who can perform mounting, chain alignment and basic tuning.
- Rural users on private property or farms for light hauling and quick trips between nearby points.
- Students or city dwellers in areas where motorized bicycles are allowed for inexpensive, shared mobility.
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