Bafang
Bafang BBS02B 48V 750W Mid-Drive Kit
$499
Best Ebike Conversion Kits · head-to-head
A sourced, side-by-side comparison. Tongsheng TSDZ2B 48V 500W Mid-Drive Kit is cheaper at $331. Every spec and price links to its source.
Bafang
$499
Tongsheng
$331Cheaper
On the specs we track, they're closely matched. The Tongsheng TSDZ2B 48V 500W Mid-Drive Kit is the cheaper at $331.
As an Amazon Associate we earn from qualifying purchases. Prices verified at capture; live price may differ.
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | | |
|---|---|---|
| US price | $499 | $331 |
| Brand | Bafang | Tongsheng |
| Released | — | — |
| Motor type | mid-drive | mid-drive |
| Motor power | 750 | 500 |
| Voltage | 48 | 48 |
| Max torque | 120 | 100 |
| Battery included | No | No |
| Battery capacity | — | — |
| System weight | 9.2 | 7.7 |
| Wheel size compatibility | 20-29 inch | all wheel sizes (68-75mm BSA BB shell) |
| Sensor type | cadence | torque + cadence |
| Max speed | — | 28 |
| Pedal assist levels | 9 | 5 |
| Display type | LCD | LCD |
| Install time | — | — |
Sources — Bafang BBS02B 48V 750W Mid-Drive Kit: electrifybike.com (verified 2026-06-27). Tongsheng TSDZ2B 48V 500W Mid-Drive Kit: varstrom.com (verified 2026-06-27).
Where the two actually differ on the specs we track (6 of 13). Matching specs are omitted.