The most direct way to convert a conventional bicycle to electric assist is to install a compatible hub-motor conversion kit. The CUBELLIN kit is best suited to a compatible 26-inch bike and everyday assistance, while the GOSHET kit is a higher-output option for a compatible 27.5-inch rear wheel. A thumb-throttle adapter and waterproof extension cable can help with specific component changes, but they are accessories—not complete conversion systems.
| Product | Best For | Key Detail |
|---|---|---|
| CUBELLIN 36V 350W Kit | 26-inch bikes and everyday assistance | Front-wheel hub motor, five assist levels |
| GOSHET 72V 2000W Kit | Compatible 27.5-inch rear wheels | Rear hub motor and 7-speed flywheel |
| Canitu Thumb Throttle Adapter | Changing a compatible twist grip to thumb control | Twist grip can remain available |
| baluoqi Waterproof Extension Cable | DIY wiring modifications | Multiple pin-count options |
| Girftong Display Adapter Cable | A specific 6-pin-to-5-pin display connection | Compact ABS-and-metal adapter |
CUBELLIN 36V 350W Front-Wheel Kit

This kit is best for someone converting a compatible 26-inch bicycle for everyday electric assistance. It uses a 36V, 350W brushless geared front hub motor and is specified for up to 30 N·m of torque. Five assist levels allow the rider to adjust support, and the listing also describes a fixed-speed cruise function.
Choose this kit if a front-wheel motor and the specified 26-inch wheel size suit your bicycle. Its stated motor output is lower than the GOSHET kit, making it the more modestly specified option in this selection. Check wheel fit and the included component list before ordering; the product information provided does not identify a battery as part of the kit.
GOSHET 27.5-Inch Rear-Wheel Kit

This is best for a rider whose bicycle can accept a 27.5-inch rear hub wheel and who wants the higher motor output specified among these kits. The listing describes a 72V, 2000W brushless, toothless motor, 60 N·m of torque, a 7-speed flywheel, an LCD display, and a pedal-assist sensor. It also says the package includes items such as handles and a controller bag, plus an installation manual.
Choose it only after checking wheel, drivetrain, and bicycle compatibility. Its stated 2000W output is substantially higher than the CUBELLIN kit’s 350W; confirm that the setup is appropriate for your bike and intended use, and check applicable local e-bike rules. The listing details provided do not specify a battery.
Canitu Thumb Throttle Adapter

This adapter is best for an owner of a compatible electric bike who wants thumb-operated control instead of relying on a twist grip. The listing names Rad, Lectric, Pedego, Himiway, and Magicycle among the intended fit examples. It describes PETG construction, injection molding, a stainless-steel screw, and a brass threaded insert. It also says the twist grip remains available for switching between control styles.
Choose this for a throttle-style change, not to electrify a standard bicycle: it does not replace a motor, controller, or battery. Fit depends on the existing throttle and bike model, so verify compatibility before purchase.
baluoqi Waterproof Extension Cable

This cable is best for DIY builders who need a short extension or replacement connection for compatible e-bike wiring. The listing describes 2-pin through 6-pin connector options, a 25 cm, 24AWG cable, copper conductors, gold-plated contacts, and an IP66 waterproof rating. It is identified for uses such as lights, throttles, and e-brakes.
Choose it only when the connector type and pin arrangement match the components being joined. It is wiring hardware, not a conversion kit, and the listing does not establish compatibility with every motor or controller.
Girftong 6-Pin-to-5-Pin Display Adapter

This adapter is best for a conversion or repair project that specifically requires connecting a 6-pin display to a 5-pin interface. The product listing describes ABS and metal construction and a compact size of about 75 by 15 millimeters, with a listed weight of 4 grams.
Choose it for that stated display-connection purpose, not as a universal display cable. Pin count alone does not confirm that two electrical systems will work together; verify the display and bike connection requirements before using it.
Buying Guide: What Should You Check Before Converting A Bike?
Does the motor wheel match your bicycle?
Start with the wheel size and whether the kit uses a front or rear motor. The CUBELLIN listing specifies a 26-inch front wheel, while GOSHET specifies a 27.5-inch rear wheel. Confirm that the wheel and other kit components suit your bicycle before buying.
What motor output and controls do you need?
Compare the stated motor specifications with your intended riding needs. The CUBELLIN is listed at 350W with five assist levels; GOSHET is listed at 2000W with a 7-speed flywheel and pedal-assist sensor. These figures are product specifications, not a guarantee of performance on a particular bicycle. Check local rules for e-bike motor output and use.
Are the battery and other parts included?
Review the package contents carefully. The GOSHET description mentions several components and an installation manual, while the CUBELLIN information describes its motor and controls. Neither supplied product description explicitly confirms that a battery is included. Do not assume a separate accessory can replace a complete motor system.
Will accessory connectors fit?
For throttle adapters, display cables, and extension wires, match the connector type and intended function to your existing components. A 6-pin-to-5-pin adapter is not automatically compatible with every display, and a waterproof cable still needs the correct wiring arrangement.
Frequently Asked Questions
Can I convert any bicycle to electric?
No single kit is guaranteed to fit every bicycle. Wheel size, front or rear placement, component connections, and the bike’s suitability for the setup all need checking.
Does a throttle adapter make a regular bike electric?
No. The Canitu adapter changes the throttle style on compatible electric bikes; it does not add a motor or battery.
Which listed kit is for a 26-inch bike?
The CUBELLIN kit is specified for a compatible 26-inch bicycle and uses a front-wheel hub motor.
Do the conversion kits include a battery?
The provided descriptions do not clearly state that either kit includes a battery. Confirm package contents with the seller before purchase.
Can I use the Girftong adapter with any e-bike display?
No universal compatibility is stated. It is described for a 6-pin display connection to a 5-pin interface, so confirm the exact display and bike requirements.