The Bafang BBS02B 500W steps the legendary mid-drive platform up to a punchy 48V 500W output with plenty of low-down torque for steep trails and loaded touring. Mounted at the bottom bracket, it sends power through your gears for strong climbing performance, and is supplied with both pedal-assist and a full hand/thumb throttle for instant power on demand. Fits a standard threaded BSA bottom bracket and includes the motor unit, lockring spanner, chainring, motor-cut-off brake levers, PAS sensor, colour display, gear sensor and full wiring loom. For off-road / private land use only — not road-legal in the UK. Its 500W rating and full throttle place it outside the UK EAPC limits, so it must only be ridden on private land or off-road with the landowner’s permission.


Bafang BBS02B 48V 500W Mid-Drive Conversion Kit
Not road-legal in the UK — off-road / private land use only. Details
Original price was: £399.95.£319.96Current price is: £319.96.
Price includes 20% VAT.
Finance coming soon — register your interest for monthly plans from £8.89/mo
Bafang BBS02B 48V 500W mid-drive kit with full thumb throttle and PAS. For off-road / private land use only — not road-legal in the UK.
About this item
- Throttle: Full throttle
- Motor Power: 500W peak
- Motor type: Mid-drive (crank / bottom bracket)
- Rated power: 500W (48V)
- Voltage: 48V
- Torque: 100Nm
- Bottom bracket fit: 68/73mm BSA threaded
In stock — dispatched within 2–3 working days
Free UK delivery on bikes · 30-day returns
| Brand | |
|---|---|
| Throttle | Full throttle |
| Motor Power | 500W peak |
| Motor type | Mid-drive (crank / bottom bracket) |
| Rated power | 500W (48V) |
| Voltage | 48V |
| Torque | 100Nm |
| Bottom bracket fit | 68/73mm BSA threaded |
| Assist mode | Pedal-assist + full thumb throttle |
| UK status | Off-road / private land only — not road-legal |
Not road-legal in the UK
This machine is fitted with a full twist-grip throttle and is not compliant with UK EAPC (Electrically Assisted Pedal Cycle) regulations. It must only be used on private land or a closed circuit with the landowner’s permission. Using it on a public road, cycle path or other public place would require type approval, registration, tax, insurance and a relevant licence.
Riders are responsible for using appropriate protective equipment and complying with local rules.
Manufacturer Warranty
All e-bikes sold by VOLTARC come with the full manufacturer's warranty. Coverage typically includes:
- Frame & Fork — 2–5 years against manufacturing defects
- Motor & Battery — 2 years (capacity guarantee: ≥60 % after 500 charge cycles)
- Electrical components — 1–2 years
- Consumables (brake pads, tyres, chain) — not covered
How to make a claim
Email support@e-bikes.biz with your order number and a description of the issue. We aim to respond within 1 business day.
Extended Support
VOLTARC offers optional 3-year extended cover for an additional fee. Ask us at checkout.
No. EAPC (Electrically Assisted Pedal Cycle) e-bikes are legal on UK roads without a licence, insurance, or registration, provided the motor assists only while pedalling and is limited to 250 W / 15.5 mph.
Range depends on the battery size, rider weight, terrain, and assist level. Check the specific product specification for its stated range; typical figures are 40–120 miles per charge.
Most batteries charge in 3–6 hours from flat using the supplied charger. Fast-charge options (where available) can halve this time.
Yes. Our bikes carry an IP rating (see spec tab) and are designed for UK weather. Avoid submerging the battery or motor. Dry and lightly oil the drivetrain after wet rides.
14-day hassle-free returns on unused bikes in original packaging. For faulty bikes we will arrange a free collection. See our returns page for full details.
Finance is not yet available at checkout — it's planned for a future release. See our Finance page for the latest status and to register your interest.






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