BBy Bikram Nath·Researched from UK Amazon listings·Updated 2026-10-28·6 products compared
Disclosure: As an Amazon Associate I earn from qualifying purchases. This guide contains Amazon affiliate links, and we may earn a commission — at no extra cost to you — but it never changes our rankings.
What are the best electric bike conversion kits to buy in the UK?
Our top pick for Electric Bike Conversion Kits in the UK is the YOSE POWER 24'' Front Wheel 36V250W E-Bike Conversion Kit.
The YOSE POWER 24'' Front Wheel 36V250W E-Bike Conversion Kit suits riders converting a 24-inch city, touring, commuter or mountain bike who want stated CE and ROHS certification and an 18 months engine warranty.
The YOSE POWER 24'' front wheel 36V250W e-bike conversion kit is our top pick because its listing states a 250W brushless motor, a max speed of approx 25km/h, 5 levels of power assistance, CE and ROHS certification, an 18 months engine warranty and a 12 months accessories guarantee. For a kit with a battery option, the ESOULBIKE 48V 250W Wheel Kit offers a battery option that its listing describes as a 48V 20Ah lithium tube battery, with a 1 Year warranty. For a mid drive, the BAFANG BBS01B lists 250W at 36V or 48V, a max torque of 80N.m and a choice of optional batteries.
This guide compares six ebike conversion kits from YOSE POWER, BAFANG, ESOULBIKE, Season and WR-TEAM, using what each listing states: motor position and power, voltage, wheel size, maximum speed, battery and fit details, and warranty. All six listings state a 250W motor, and stated wheel sizes run from 20'' on the smaller YOSE POWER kit to 29 inch on the ESOULBIKE wheel kit.
Buying guide
What should you look for in Electric Bike Conversion Kits?
1Motor position: the two YOSE POWER kits are front wheel kits; the WR-TEAM is a rear wheel hub motor kit and the Season a rear motor for freewheel; the BAFANG BBS01B is a mid drive motor that fits the bottom bracket; the ESOULBIKE wheel kit lists rear fork widths of 142mm (cassette motor) and 135mm (freewheel motor).
2Power and voltage: all six listings state 250W. The YOSE POWER and Season kits are 36V, the WR-TEAM and ESOULBIKE kits 48V, and the BAFANG BBS01B comes in 36V and 48V versions, each with a max torque of 80N.m. The WR-TEAM states a motor torque of 45 N.M.
3Battery: the BAFANG listing offers optional batteries from 13Ah to 30Ah plus 36V 20.8Ah or 48V 18.2Ah rear rack batteries; the ESOULBIKE listing offers a 48V 20Ah lithium tube battery option. The Season listing says the battery is not included, the WR-TEAM listing recommends a battery capacity of not less than 13Ah, and the YOSE POWER listings do not mention a battery.
4Fit: the YOSE POWER listings say the set does not fit HOLLOWTECH II and hydraulic brakes; the BAFANG lists 68-73mm bottom brackets with an inner diameter of 33.5-36mm and includes brake levers or hydraulic brake sensors; the WR-TEAM states a 210 mm axle and 135 mm rear dropout spacing; the Season listing says the freewheel and cassette are not included.
5Warranty: the YOSE POWER and Season listings state 18 months on the motor (engine) and 12 months on accessories; the ESOULBIKE states 1 Year. The WR-TEAM feature list gives a 1-month warranty on hub motors and 3 months on other components, while its product details say one year. The BAFANG listing states no warranty term.
Our process
How do we choose our picks?
We don’t lab-test products ourselves. Instead we synthesise current Amazon UK listings and published specs into clear, honest recommendations. We earn a commission if you buy through our links, but that never changes which products we rank.
Current UK availability
We check each pick against live Amazon UK catalogue data rather than last year’s model lists. Stock moves fast, so a listing can sell out after we publish.
Published specs
We compare manufacturer specifications so each pick is right for a real budget and use-case.
UK-specific fit
We factor in UK voltage and plug/fitting standards — details that generic global lists miss.
YOSE POWER 24'' Front Wheel 36V250W E-Bike Conversion Kit
The YOSE POWER 24'' Front Wheel 36V250W E-Bike Conversion Kit suits riders converting a 24-inch city, touring, commuter or mountain bike who want stated CE and ROHS certification and an 18 months engine warranty.
Motor
250W brushless gear motor, front wheel
Voltage
36V
Wheel Size
24''
Max Speed
Approx 25km/h
Warranty
Engine: 18 months; accessories: 12 months
Certification
CE, ROHS
Display
LCD, 5 levels of power assistance
What we like
+18 months engine warranty and 12 months accessories guarantee stated on the listing
+CE and ROHS certification stated
+LCD display and 5 levels of power assistance
+Installation video and English manual included; the listing says it can be installed within an hour
Worth noting
–The listing says the set does not fit HOLLOWTECH II and hydraulic brakes
–The listing does not mention a battery
£200.00Amazon.co.uk price as of 03 Nov, 12:00 (London time). Details
The BAFANG BBS01B 250W Mid Drive Ebike Conversion Kit suits riders with a 68-73mm bottom bracket who want a mid drive with 80N.m max torque and a battery option, though the listing states no warranty term.
Motor
BBS01B mid drive, 250W, max torque 80N.m
Voltage
36V or 48V
Battery
Optional: 13Ah, 15.6Ah, 16Ah, 20Ah, 24Ah or 30Ah; 36V 20.8Ah or 48V 18.2Ah rear rack
Bottom Bracket
68-73mm length, 33.5-36mm inner diameter
Riding Modes
Pure Electric, Pedal Assisted, Walk Assisted
What we like
+Max torque of 80N.m stated for both the 36V and 48V versions
+Optional batteries listed for commuting and longer rides
+Kit lists brake levers or hydraulic brake sensors, thumb throttle, speed sensor, cranks, installation screws and a wrench
+Choice of seven optional displays named on the listing
Worth noting
–The listing states no warranty term
–The listing gives no maximum speed figure
–Display, chainring and battery are listed as optional
£313.82Amazon.co.uk price as of 03 Nov, 12:00 (London time). Details
ESOULBIKE 48V 250W Wheel Ebike Conversion Kit with Battery Option
The ESOULBIKE 48V 250W Wheel Ebike Conversion Kit with Battery Option suits riders who want a 48V wheel kit with a stated 48V 20Ah battery option and a 1 Year warranty.
Season 26'' 36V250W Rear Motor E-bike Conversion Kit for Freewheel
The Season 26'' 36V250W Rear Motor E-bike Conversion Kit suits riders who already have a battery and want a rear motor kit with CE and RoHS certification and an 18 month motor warranty.
Motor
36V250W brushless rear hub motor for freewheel
Voltage
36V
Wheel Size
26'' / 28''(700C); this listing: 26'' Freewheel Kit
Max Speed
About 25 km/h
Battery
Not included
Warranty
Motor: 18 months; accessories: 12 months
Certification
CE, RoHS
What we like
+Motor 18 month warranty and 12 months on accessories
+CE and RoHS certification stated
+Includes motor wheel, controller, LED display, throttle, brake levers, PAS sensor and tools
+Pure electric, assisted and ordinary riding modes, with 3 pedal assist modes
Worth noting
–The listing says battery, tyre, freewheel and cassette are not included
–Installation instructions are bilingual German-English
£174.30Amazon.co.uk price as of 03 Nov, 12:00 (London time). Details
The WR-TEAM 48V 27.5'' MXUS 250W Rear Wheel Conversion Kit suits owners of 27.5-inch bikes with 135 mm rear dropouts who want a 48V kit with a 7-speed cassette, though its warranty statements disagree.
Motor
250W brushless rear hub motor, 45 N.M torque
Voltage
48V
Wheel Size
27.5" x 1.95"
Max Speed
25km/h
Battery
Recommended capacity not less than 13Ah
Warranty
Feature list: 1 month on hub motors, 3 months on other parts; product details: one year
Controller
48V250W 17A sine wave
What we like
+States a 210 mm axle and 135 mm rear dropout spacing
+Motor torque of 45 N.M stated
+7-speed cassette and SW900 screen named in the title
+The listing says the sine wave controller is up to 82% efficient
Worth noting
–The listing gives two warranty statements: 1 month on hub motors in the feature list, one year in the product details
–The listing does not say a battery is included; it recommends not less than 13Ah
–Wheel size is 27.5'' only
£185.88Amazon.co.uk price as of 03 Nov, 12:00 (London time). Details
YOSE POWER 20'' Front Wheel 36V250W Conversion Kit
The YOSE POWER 20'' Front Wheel 36V250W Conversion Kit suits riders converting a 20-inch bike who want a front wheel kit with CE and ROHS certification and an 18 months engine warranty.
Motor
250W brushless gear motor, front wheel
Voltage
36V
Wheel Size
20''
Max Speed
Approx 25km/h
Warranty
Engine: 18 months; accessories: 12 months
Certification
CE, ROHS
Display
LCD, 5 levels of power assistance
What we like
+Listed for 20-inch wheels
+18 months engine warranty and 12 months accessories guarantee
+CE and ROHS certification stated
+Installation video and English manual included
Worth noting
–The listing says the set does not fit HOLLOWTECH II and hydraulic brakes
–The listing does not mention a battery
£205.90Amazon.co.uk price as of 03 Nov, 12:00 (London time). Details
Product prices and availability are accurate as of 03 Nov, 12:00 (London time) and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.
Editor's Note
Battery details are the biggest gap: only the BAFANG and ESOULBIKE listings describe a battery option, and the Season listing says the battery is not included. The WR-TEAM listing gives two different warranty statements, and the BAFANG listing states no warranty term at all. The BAFANG listing gives no maximum speed figure, while the five wheel kits state about 25km/h.
Our Take
As a default, pick the YOSE POWER 24'' front wheel kit: 36V250W, 5 levels of power assistance, CE and ROHS certification and an 18 months engine warranty, all on the listing. If you want a kit with a battery option, the ESOULBIKE 48V 250W lists a 48V 20Ah battery and a 1 Year warranty; for a mid drive, the BAFANG BBS01B lists 80N.m max torque and optional batteries.
Questions & answers
Frequently asked questions
Can you buy an electric bike conversion kit with a battery?
Yes: the ESOULBIKE 48V 250W Wheel Kit and the BAFANG BBS01B mid drive kit both list a battery option. ESOULBIKE describes a 48V 20Ah lithium tube battery with 5000mAh cells, a 50A BMS, a 3A charger and an XT60 discharge plug; BAFANG lists batteries from 13Ah to 30Ah plus 36V 20.8Ah or 48V 18.2Ah rear rack batteries. The Season listing says its kit does not include a battery.
How fast does an ebike conversion kit go?
The YOSE POWER, Season, ESOULBIKE and WR-TEAM listings state a maximum speed of about 25km/h. The BAFANG BBS01B listing says speed limits can be adjusted on the display but gives no figure.
Which ebike conversion kits fit smaller wheels?
The YOSE POWER 20'' Front Wheel 36V250W kit is listed for 20-inch wheels and the YOSE POWER 24'' kit for 24-inch wheels. The other wheel kits here list 26'' and larger: Season 26'', WR-TEAM 27.5'' and ESOULBIKE 26/27.5/28/29 inch.
Should an ebike conversion kit be front wheel, rear wheel or mid drive?
The BAFANG BBS01B is the mid drive option here, fitting 68-73mm bottom brackets, while the YOSE POWER kits are front wheel and the WR-TEAM and Season kits are rear motor kits. The listings differ in what they need: the WR-TEAM states 135 mm rear dropout spacing, and the Season freewheel kit says the freewheel and cassette are not included.
Do ebike conversion kits work with hydraulic brakes?
The BAFANG BBS01B listing includes brake levers or hydraulic brake sensors in its parts list. The YOSE POWER listings say their sets do not fit HOLLOWTECH II and hydraulic brakes.
What warranty do ebike conversion kits come with?
The YOSE POWER and Season kits list 18 months on the motor and 12 months on accessories, and the ESOULBIKE lists 1 Year. The WR-TEAM feature list states 1 month on hub motors and 3 months on other components while its product details say one year, and the BAFANG listing states no warranty term.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. UKPicks earns a small commission from qualifying purchases made via links on this page. This does not affect our editorial recommendations or the price you pay.
