Transforming a three-wheeler, go-kart, or electric trike into a more capable or stylish ride is easier with the right conversion kit. This guide highlights five versatile kits and components that fit a range of DIY applications—from adult trikes to kids’ ride-ons—and explains what to consider before you buy. Each option features reliable hubs, axles, or adapters designed to handle drivetrain demands and bring more control, braking power, or compatibility to your build.
Summary of chosen products:
| Product | Key Benefit | Brand | Amazon Link |
|---|---|---|---|
| 32 Inch Rear Live Axle Kit | Complete DIY go-kart or ATV setup | CWTD Store | Visit Product |
| Sun 3-Speed Coaster Brake Hub | Enhanced braking and shifting | Archer | Visit Product |
| Lowrider 20-26 Bike Trike Kit | Wheel compatibility for hollow hubs | Sun Company Store | Visit Product |
| Sun 5-Speed Coaster Hub Kit | Multiple gearing options for adult trikes | Sun Company Store | Visit Product |
| Power Wheels Dewalt Battery Adapter | Battery conversion for ride-ons and DIY projects | CHoiKWong Store | Visit Product |
32 Inch Rear Live Axle Kit With 420 Sprocket

This 32 inch rear live axle kit provides a complete DIY drive train for go-karts, drift trikes, quads, or golf carts. It includes a 420 chain and 37T sprocket, brake disc, master cylinder, 145/70-6 tubeless tires, and hub assemblies. Built from high-strength chrome alloy, the axle measures 32 inches in length with a 1 inch diameter and a sturdy center section. Rated to support over 500 lbs, it offers reliable power transfer for both gas engines and electric motors. The kit’s compatibility with vertical or horizontal engines makes it versatile for various builds.
Key features: 32″ axle, 1″ diameter, heavy-duty chrome alloy, 500+ lb capacity, 420 chain with 37T sprocket, brake components, and tubeless tires. Ideal for DIY projects seeking a robust drivetrain with straightforward mounting for wheel hubs and pillow block bearings.
Sun 3-Speed Coaster Brake Hub Kit For Adult 3-Wheeler

This sun-coaster brake hub kit provides a practical three-speed setup for adult three-wheelers. The kit includes a 21T front drive cog, 22T rear transfer cog, and a 24T axle drive cog, offering improved gearing options for cruising or climbing. It is designed to fit compatible three-wheelers with standard hub configurations and can simplify retrofitting a more controllable braking system to older trikes or custom builds.
Considerations include compatibility with your wheel size, the availability of matching sprockets and cables, and the required frame clearance for shifted gearing. This kit is a solid choice for riders seeking a straightforward upgrade to braking and drive versatility without complex installations.
Lowrider 20-26 Bike Trike Kit

This conversion kit targets hollow hub wheels within the 20-26 inch range. It is described as compatible with hollow hub wheels and supports various spoke counts (26″ wheels listed). The kit is designed to work with specific hollow hub configurations and is labeled as a sale item for conversion use. Potential buyers should verify spoke count, axle width, and mounting hardware compatibility with their existing trike or bike frame to ensure a proper fit.
Buyers should assess wheel compatibility (hollow hub widths and spoke arrangements), the availability of matching hubs, and any required adapters. This kit is useful for riders looking to convert or upgrade trikes with hollow-hub wheel systems to achieve improved performance and ease of maintenance.
Sun 5-Speed Coaster Hub Kit For Adult 3-Wheeler

This five-speed coaster hub kit adds versatility to adult three-wheelers, featuring a 21T front drive cog, 22T rear transfer cog, and a 24T axle drive cog. The configuration supports multiple gearing options to optimize cruising speed, hill climbing, and overall efficiency. The kit is designed for compatibility with standard three-wheelers and is suitable for those upgrading an existing bike-to-trike drivetrain.
Key considerations include ensuring frame and chain alignment with the additional sprockets and confirming compatibility with your day-to-day riding demands. The 5-speed setup enables smoother transitions and more adaptable performance on varied terrains.
Power Wheels Dewalt Battery Adapter Kit

This battery adapter is designed to connect Dewalt 20V/18V DCB series batteries to Power Wheels or similar ride-on platforms and DIY projects. It features a switch, fuse, and secure wire terminals for safe operation. The product emphasizes durable ABS construction, heat resistance, and a snug fit for easy installation and removal. It supports high-power applications with 12 AWG wiring and includes waterproof fuse protection and a robust connection system for reliable operation.
Important considerations include ensuring battery compatibility, safety features such as fuses and waterproof caps, and the ease of wiring sleeving and mounting within a custom conversion. This adapter is ideal for builders looking to extend the use of Dewalt batteries into ride-on toys, robotic projects, or DIY vehicles requiring portable power packs.
Buying Guide: Key Purchase Considerations For 3-Wheeler Conversions
- Compatibility and fit: Confirm wheel size (inches), hub type (solid vs hollow, spokes), axle length, and mounting patterns align with your frame and existing components.
- Drivetrain goals: Decide whether you need more torque, higher top speed, or smoother gearing. Coaster hubs and multi-speed kits offer different balance points for hills and cruising.
- Braking system compatibility: If upgrading brakes, ensure calipers, master cylinders, and rotors align with your wheel hubs and frame clearance.
- Power source and engine orientation: For gas vs electric builds, verify the conversion kit accommodates vertical or horizontal engine layouts and motor mounts.
- Durability and load ratings: Look at axle length, center thickness, and weight ratings to ensure sustained performance under expected load and usage.
- Ease of installation: Some kits assume standard hub sizes and bolt patterns; others may require custom mounting brackets or adapters—budget time for fitment trials.
- Availability of spare parts: Check for compatible sprockets, gears, and bearings to minimize downtime when replacements are needed.
- Safety and compliance: Verify that all components meet local safety standards and that wiring and braking systems are properly insulated and secured.
- Budget and scope: For big builds, prioritize a robust axle or hub kit first, then plan incremental upgrades to maintain a clear upgrade path.
- Future proofing: Consider modular kits that can be re-used on different frames or wheel sizes to maximize the return on your investment.
These considerations help balance performance, safety, and cost when selecting a 3-wheeler conversion kit. The five products above illustrate a spectrum from complete axles to hub and battery adapters, enabling a range of build styles—from simple upgrades to more ambitious DIY projects.