Looking to reinvent a small scooter into a three‑wheel machine for stability, cargo capacity, or just a niche project? A 50cc scooter trike conversion kit can simplify the upgrade, offering compatible rear axles, trike frames, and supporting components. This guide examines five relevant kits and parts that commonly appear in 50cc trike projects, highlighting compatibility, installation considerations, and what to weigh before you buy. Each option is evaluated for ease of use, durability, and how well it fits a typical 50cc scooter setup.
Summary of chosen products:
- WEEROCK 20″/24″/26″ Tricycle Rear Axle Conversion Kit (Single or 7 Speed) – Black
- Trike Rear Axle, Tricycle Conversion Kit 7 Speed – 5/8 Inch Axle
- Tricycle Conversion Kit 7 Speed – 20″/24″/26″ Adult Trike (Black/White)
- 50mm Cylinder Kits for GY6 49cc/50cc Engine – Upgraded Power for Moped/ Scooter
- GY6 Carburetor Ignition Coil Voltage Regulator Rectifier Kit (Compatible with 50cc Taotao/Jonway etc.)
WEEROCK Tricycle Rear Axle Conversion Kit
This WEEROCK kit provides a versatile rear axle option for converting a 20″, 24″, or 26″ trike setup. It supports single or 7‑speed configurations and is designed for 1‑speed trikes as well as multi‑speed adult trikes. The rear axle diameter is 5/8 inch (15.8 mm), which fits hollow‑hub wheels and supports a band brake system for reliable stopping power. Ideal for riders seeking a straightforward upgrade path to create a stable three‑wheel riding experience from a standard scooter base.
Key features include compatibility with common wheel sizes and a robust axle diameter that balances weight with strength. Installation should align with existing chassis mounting points, and you’ll want to confirm the brake compatibility with your chosen wheel and brake type. This kit is particularly suitable for riders aiming to convert a lightweight scooter into a practical, stable trike for urban errands or relaxed cruising.
Trike Rear Axle, 7 Speed Kit – 15.8mm Axle
This trike rear axle kit is designed to support 7‑speed operation for adult two‑wheel to three‑wheel transitions. The axle size is specified as 5/8 inch (15.8 mm) and is compatible with hollow‑hub wheels, offering a sturdy platform for a trike conversion. The frame compatibility is listed as suitable for adult bicycles or motorcycles, which broadens potential donor platforms, including certain scooter chassis that can be adapted with mounting adjustments. Durable high‑carbon steel construction promises long‑term rigidity in daily use.
Considerations include drivetrain alignment for 7‑speed gearing and ensuring the chainline remains correct after mounting. Brake compatibility and hub alignment are essential for safe operation. This kit serves well for builders who want a robust, longer‑term trike solution that can deliver steady performance on mixed terrains or city streets.
GY6 50cc Carburetor Ignition Coil Kit
This kit targets 50cc scooters using GY6 engines and includes a carburetor, ignition coil, voltage regulator, rectifier, and related components. It is designed to be compatible with popular 50cc Chinese scooters and mopeds that employ 139QMB/139QMA four‑stroke engines, such as Taotao, Jonway, Roketa, and several other brands. The kit’s value lies in precise fuel‑air mixing and reliable power delivery, which can help a scooter perform more predictably when added weight from a trike conversion is involved. It is also noted for reduced oil leaks and broader adaptability to various gy6 platforms.
When integrating into a trike build, ensure the carburetor mounting, throttle linkage, and electrical connections align with the donor scooter’s harness. Compatibility with specific models may vary, so verification with the engine’s service manual is recommended. This kit can contribute to smoother idling, improved acceleration, and consistent performance as you transition toward a three‑wheel configuration.
Twist Throttle Accelerator Handle Grips Kit
This throttle handle and cable set is compatible with 7/8 inch (22 mm) bars, commonly found on many 50cc and small displacement bikes and ATVs. The kit includes a 90-degree bend cable configuration, which can simplify routing in trike conversions where space behind the handlebars is constrained. Compatibility spans 50cc to 250cc bikes and various mini bikes, making it a flexible option for replacing or upgrading throttle control during a trike build. The cable length is substantial, aiding smoother throttle response when weight and gear changes occur in a three‑wheel setup.
Practical considerations include brake‑throttle routing and ensuring the bend does not introduce friction or binding. This part helps maintain precise throttle input, which is important for safe and predictable performance in a custom trike configuration.
Additional Trike Conversion Kit – 7 Speed
This trike conversion kit entry supports adult trike configurations with 7 speeds across 20″, 24″, and 26″ wheels. The kit emphasizes a robust 7‑speed drivetrain, a 15 mm axle size, and hollow‑hub compatibility, with a focus on high‑carbon steel construction for durability. It’s suitable for converting motorcycles or bicycles into a trike, provided mounting points and frame geometry can accommodate the new drivetrain. If your donor frame is a scooter chassis adapted to a trike, ensure the rear section can support the added third wheel and load distribution without impacting steering geometry.
When evaluating this option, check for compatibility with your wheel hub type, brake system, and chain alignment. For best results, plan the conversion around a donor frame that offers precise alignment and stable mounting points, reducing the risk of misalignment or binding during use.
Buying Guide: Key Purchase Considerations
- Donor platform compatibility: Confirm the donor scooter or bike’s wheel size, hub type, and brake system align with the trike kit’s specifications (especially axle diameter and hollow‑hub compatibility).
- Drivetrain alignment: For 7‑speed configurations, verify chainline and rear derailleur compatibility. Misalignment can cause poor shifting and excessive wear.
- Frame geometry and weight distribution: A trike adds load to the rear. Ensure the frame can handle the added weight without compromising steering or braking performance.
- Brake integration: If the kit includes a new rear axle or wheel, check that the brake type (band brake, disc, or drum) is supported by the donor wheel and chassis.
- Engine and power considerations: Upgrades like 50mm GY6 cylinder kits and carburetor/ignition components can increase power. Ensure the engine bay, cooling, and exhaust routes accommodate the changes safely.
- Electrical compatibility: When selecting ignition coils, regulators, and carburetor kits, verify electrical connectors and engine code compatibility (139QMB/139QMA, etc.).
- Safety and compliance: Some builds may require inspection or compliance with local vehicle regulations. Plan for lights, reflectors, and safety features as needed for street use.
- Ease of installation vs. customization: Some kits are intended for straightforward bolt‑on installation; others require welding, custom brackets, or frame modification. Assess your toolset and skill level accordingly.
Overall, a 50cc scooter trike conversion hinges on choosing components that match your donor frame, wheel/hub type, and braking system. When pairing several parts (axle kits, throttle controls, carburetors, and engine upgrades), ensure there is coherent compatibility across mechanical and electrical interfaces to achieve a safe, reliable trike.