Best E Bike Conversion Kits for Mid-Drive and Hub Builds

#1 · Best Overall

1. BAFANG BBS02B BBS-HD

• Material Type: Aluminum

Best for: DIY mid-drive builders.

Why it ranks #1: Offers 500W, 750W and 1000W mid-drive choices, with a speed sensor, throttle and brake lever listed among its accessories; battery and display are optional.

A choice of 500W, 750W, or 1000W mid-drive configurations lets builders select a BAFANG conversion level for their project. The kit includes a thumb throttle, chainwheel, speed sensor, brake lever, headlight, and bottom-bracket removal tool, giving a DIY setup several key parts and a tool to start installation.

The mid-drive layout places the motor at the bike’s crank area, while the supplied chainwheel and speed sensor support the conversion’s drive and speed-reading setup. The bottom-bracket removal tool is included for the installation workflow, and the brake lever, throttle, and headlight add conversion components without sourcing each separately. Battery and LCD are optional, so buyers can choose those parts to suit their build; the listed range spans 500W, 750W, and 1000W configurations.

Skip it if you want a complete battery-and-display package; BAFANG BBS01B includes a 36V 17.5Ah battery and C961 display.

This suits DIY builders choosing among several mid-drive power options who want installation hardware and core controls in the kit. Account for the optional battery and LCD when planning the build, and check that the frame works with the selected configuration.

Listed on Amazon as: BAFANG BBS02B BBS-HD 500W 750W 1000W Mid Drive Electric Bike Conversion Kit

#2 · Best Battery-Included Mid-Drive

2. BAFANG BBS01B

• Weight: 6.6 kg

Best for: Battery-included city riders.

Why it ranks #2: Pairs a 36V 500W mid-drive with a stated 17.5Ah battery and charger; its listing specifies 34–36mm bottom-bracket diameter compatibility.

A 36V 17.5Ah battery and charger come with this 500W BAFANG mid-drive kit, giving riders a conversion package with its energy source included. Its C961 display offers nine pedal-assist levels and an auto backlight, making assist selection and display reading part of the supplied setup.

The 500W motor is rated at 100Nm in the listing, which the product description says works well in hills and city riding. The C961 display’s nine assist levels let riders select support, while its auto backlight helps with display visibility. Installation compatibility is specified for bicycles with a 34–36mm bottom-bracket diameter; the kit also includes tools, a speed sensor, throttle, and crank brakes to support the conversion workflow.

Skip it if you need a kit for a different bottom-bracket diameter; DENEST instead lists a 24-inch front-wheel conversion.

This is for riders seeking a battery-included mid-drive package for city routes or hills, with adjustable pedal assist on the C961 display. The stated 34–36mm bottom-bracket diameter is a key fit boundary to check before choosing it.

Listed on Amazon as: Bafang – BBS01B E-Bike Conversion Kit 500W 36V Mid Drive Engine G340 C961 Display 36V 17.5Ah Battery and Charger

#3 · Torque-Sensor Mid-Drive Pick

3. Varstrom TSDZ-2B

• Wheel Size: 26 in
• Material Type: Aluminum

Best for: Torque-sensor mid-drive seekers.

Why it ranks #3: The listed TSDZ-2B kit is a 500W, 750W or 1000W mid-drive with a torque sensor, LCD display feature and a stated 26-inch wheel size.

A torque sensor is the defining feature of this Varstrom mid-drive kit, offering riders a sensor-based alternative to a throttle-focused conversion. The listing identifies 500W, 750W, and 1000W versions and includes an LCD display, giving buyers a choice of stated motor output and a display in the kit.

The torque-sensor mid-drive setup is relevant to riders prioritizing pedal input in their conversion, while the included LCD display provides a dedicated screen for the system. The listed power choices—500W, 750W, and 1000W—allow selection among three output configurations. Compatibility details are comparatively specific in the listing: it names a 26-inch wheel, disc brakes, and nine speeds, so these are useful reference points when considering the bike and drivetrain for the conversion.

Skip it if you need a front-wheel kit; DENEST lists a 24-inch front-wheel conversion with a 500W motor.

This kit fits riders looking specifically for a torque-sensor mid-drive and a choice of listed power levels. Its 26-inch wheel, disc-brake, and nine-speed details provide the stated compatibility references, so compare those with the intended bike.

Listed on Amazon as: TSDZ-2B Z8 TSDZ16 500W 750W 1000W Torque Sensor Mid Drive Kit

#4 · Highest Listed Wattage

4. CUBELLIN 72V Rear Hub

• Wheel Size: 26 in
• Material Type: Aluminum

Best for: High-power 26-inch conversions.

Why it ranks #4: Its 72V 2000W rear hub kit includes a motor wheel, controller, LCD, throttle, pedal-assist sensor and brake lever, with nine speed levels stated.

A 72V 2000W rear hub motor sets this CUBELLIN kit apart for 26-inch-wheel conversions where a high-power specification is the priority. The package lists an LCD display, controller, throttle, pedal-assist sensor, and power-off brake lever, bringing several conversion controls and components together.

The 26-inch aluminum motor wheel establishes the rear-wheel format, while the brushless toothless motor is described as smoother and quieter than brushed designs. Its listed 560rpm speed and 60Nm torque accompany nine speed levels and cruise control, giving riders adjustment options for road conditions. The LCD display shows speed, mileage, and faults, and the included seven-speed flywheel, throttle, PAS sensor, and power-off brake lever specify much of the conversion hardware.

Skip it if you need a 20-inch wheel kit; Bdujhit specifies a 20-inch rear hub conversion with PAS and LCD.

This suits a 26-inch-bike owner seeking a 72V 2000W rear hub conversion with display, cruise control, and multiple speed levels. Its stated wheel size is the main fit boundary, and the included 7-speed flywheel is part of the package.

Listed on Amazon as: 26 Inch Ebike Conversion Kit 72V 2000W Rear Hub Motor Kit

#5 · Best 29-Inch Wheel Match

5. DDYOOK 1000W Hub Kit

• Wheel Size: 29 in
• Material Type: Aluminum
• Weight: 24.3 lb

Best for: Display-focused 700C commuters.

Why it ranks #5: The 48V 1000W hub kit is specified for 700C, 28- or 29-inch wheels and lists a display, PAS, controller and two-year warranty.

A display that reports speed, mileage, battery power, assist level, and cruise function makes this DDYOOK kit particularly information-rich while riding. The 48V 1000W hub conversion also offers five speed adjustments and is listed for 700C, 28-inch, or 29-inch wheels, with a rear-wheel configuration specified.

The display’s speed, trip, total mileage, battery, and assist readouts let riders monitor several operating details from one screen. Five speed settings provide a way to adjust the setup for different road conditions, while the stated cruise function adds another named control mode. The kit includes a motor wheel, display, brake levers, controller, and thumb knob handle, but the listing says battery, charger, and tires are not included.

Skip it if you want a battery and charger in the package; BAFANG BBS01B includes a 36V 17.5Ah battery and charger.

This suits riders converting a listed 700C, 28-inch, or 29-inch wheel bike who value detailed display information and five speed settings. The specified rear-wheel size and excluded battery, charger, and tires shape the installation plan.

Listed on Amazon as: Electric Bike Conversion Kit, 48V 1000W 700C 28"/ 29" Front/Rear Wheel Electric Bicycle Hub Kit Dual Mode Controller w/LCD Display & PAS, 5-Speed Adjustment E-Bike Conversion Kit

#6

6. YUASDUU 1000W Hub Kit

• Material Type: Aluminum

Best for: 700C rear-wheel commuters.

Why it ranks #6: A 48V 1000W rear-wheel kit for the 700C, 28- or 29-inch category, with a display and pedal sensor listed; the listing states no warranty.

Five speed settings and a display with pedal-sensor control make this YUASDUU kit an adjustable rear-wheel conversion for 700C, 28-inch, or 29-inch bikes. The 48V 1000W hub kit is described for commuting and short trips, and its stated controls include throttle, cruise control, and pedal assist.

The five speed settings give riders a choice of support level, while the display and pedal sensor are described as enabling switches among throttle control, cruise control, and pedal assist. The rear hub wheel configuration targets the listed 700C, 28-inch, or 29-inch format. The included-components field names a motor wheel and display, so buyers should note that limited contents detail when planning the remaining conversion parts.

Skip it if you need a kit with brake levers and a controller listed; DDYOOK includes both in its 48V 1000W kit.

This suits commuters and short-trip riders with a listed 700C, 28-inch, or 29-inch rear-wheel bike who want multiple control modes. Its contents listing names only the wheel and display, so plan for the other conversion components.

Listed on Amazon as: 48v Electric Bike Conversion Kit, 1000W 700C 28"/ 29" Rear Wheel Electric Bicycle Hub Kit Powerful Ebike Hub Motor Kits w/LCD Display & PAS, 5-Speed Adjustment E-Bike Conversion Kits

#7

7. DENEST 36V Front Hub

• Material Type: Aluminum
• Weight: 17.6 lb

Best for: 24-inch front-wheel conversions.

Why it ranks #7: This 36V 500W front-wheel kit has a dual-mode controller and stated 30–35 km/h maximum speed; its recommended battery is not included.

A 24-inch front motor wheel and 36V 500W brushless motor make this DENEST kit a defined front-wheel conversion for compatible bikes. Its dual-mode controller is a practical differentiator, while the listing reports a maximum speed of 30–35km/h and recommends a separately supplied 36V battery of 13Ah or higher.

The front-wheel format directs installation to the bike’s front end, and the 24-inch wheel specification gives a concrete wheel-size reference. The brushless gear motor is described as smooth and low-noise, with no brush replacement required, which reduces one maintenance task noted in the listing. A dual-mode controller is included, while the recommended 36V 13Ah-or-higher battery is not; buyers need to account for that separate power source.

Skip it if you need a battery included; BAFANG BBS01B comes with a 36V 17.5Ah battery and charger.

This suits owners of a 24-inch-wheel bike seeking a front-wheel conversion with a brushless 500W motor and dual-mode controller. It requires a separately sourced battery, and the listing recommends 36V capacity of at least 13Ah.

Listed on Amazon as: Electric Bike Conversion Kit 36V 500W 24" Ebike Wheel Kit Dual Mode Controller Front Wheel E-Bike Conversion Kit Cycling Hub Conversion Kit

#8

8. LOYALHEARTDY 20-Inch Hub

• Wheel Size: 20 in
• Weight: 18 lb

Best for: 20-inch wheel conversion projects.

Why it ranks #8: A 20-inch front- or rear-wheel hub option with a 1000W motor, 48V controller and stated 45Nm rated torque, aimed at smaller-wheel builds.

A 20-inch hub wheel offered for front- or rear-wheel conversion gives the LOYALHEARTDY kit flexibility in where the motor wheel goes. Its listed 48V 1000W brushless motor, 48V/30A controller, and SW-810LED display form a stated high-output setup for compact-wheel commuting or light off-road use.

The front-or-rear wheel choice lets buyers align the conversion with the bike’s intended wheel position, while the 20-inch size narrows the format to compact-wheel builds. The 1000W brushless motor is paired with a 48V/30A controller and has a listed 45Nm rated torque. The product also gives a 280-pound load capacity and a maximum no-load speed of 42km/h, useful boundaries for considering its commuting and light off-road use.

Skip it if your bike uses a 26-inch wheel; CUBELLIN lists a 26-inch rear hub conversion with LCD and controller.

This is for compact-wheel bike owners choosing between front- and rear-wheel placement, with commuting and light off-road use named in the listing. Its 20-inch wheel size and 280-pound load limit are relevant selection boundaries.

Listed on Amazon as: 20" Front/Rear Wheel Hub Electric Bike Conversion Kit, 36V 250W/48V 1000W E-Bike Powerful Hub Motor Kit with SW-810LED Display Waterproof Wire Front/Rear Wheel Hub Assembly Motor Kit (US Stock)

#9

9. Bdujhit 20-Inch Rear Hub

Best for: Compact-wheel high-output builds.

Why it ranks #9: The 48V 1500W rear hub kit specifies a 20-inch wheel, PAS sensor and LCD display, but the supplied details describe fewer complete kit components.

A 1500W, 48V rear hub motor paired with a 20-inch wheel defines this Bdujhit conversion kit, with the listing also identifying a PAS sensor and LCD display. Its seven gears give this compact-wheel package a stated geared setup for commuting or short-distance cycling.

The 20-inch rear wheel gives the conversion a specific compact-wheel format, while the 1500W motor and stated efficiency above 82% identify its power configuration. A PAS sensor supports pedal-assist operation, and the LCD display supplies a rider-facing control component. The seven-gear setup is named in the title, and the listed maximum load capacity is about 150kg; together these details help buyers assess the intended bike format and use.

Skip it if you have a 26-inch bike; CUBELLIN lists a 26-inch rear hub kit with an LCD display.

This is aimed at riders converting a 20-inch-wheel bike for commuting or short trips who want a 1500W rear hub, PAS, and display. The wheel size is a firm format consideration, so it is not the listed match for larger wheels.

Listed on Amazon as: Electric Bicycle Conversion Kit, 48V 1500W Ebike 20" Rear Hub Motor Wheel Kit with PAS Sensor & LCD Display, 7 Gears Electric Snow E-Bike Conversion Kit, Upgrade Brushless Gearless Hub Motor Kit

#10

10. Mahugde 26-Inch Hub

• Wheel Size: 26 in
• Material Type: Aluminum
• Weight: 22.9 lb

Best for: 26-inch hub-wheel converters.

Why it ranks #10: This 48V 1000W kit specifies a 26-inch rear hub wheel, but its included-components list names only one motor wheel, limiting what is confirmed.

A 48V 1000W rear hub motor in a 26-inch wheel makes this Mahugde kit a rear-wheel conversion option for a bike using that wheel size. The listing also names a thumb throttle and pedal-assist sensor, giving riders two stated control components alongside the motor wheel.

The rear hub configuration concentrates the motor in the wheel rather than at the crank, so the conversion centers on replacing the listed 26-inch wheel. Its 1000W rating and 48V specification identify the stated motor setup, while the thumb throttle and pedal-assist sensor offer two named control inputs. The included-components field lists one motor wheel, however, so buyers should plan the rest of the conversion around that limited stated contents detail.

Skip it if you want a kit listing a display and controller; CUBELLIN lists both with its 26-inch rear hub kit.

This is for a 26-inch-bike owner seeking a 1000W rear hub wheel with a throttle and pedal-assist sensor identified in the product details. The included-components list names only the motor wheel, an important boundary for planning parts.

Listed on Amazon as: Electric Bike Conversion Kit, 48V 1000W 26" E-Bike Hub Motor Wheel Kit Rear Wheel Powerful Motor with Thumb Throttle and Pedal Assistant Sensor, E-Bike Hub Motor Conversion Kit for 26 Inch Bike