Best Ebike Conversion Kits · head-to-head

Bafang BBS02B 48V 750W Mid-Drive Kit vs Tongsheng TSDZ2B 48V 500W Mid-Drive Kit

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.

Which is better: the Bafang BBS02B 48V 750W Mid-Drive Kit or Tongsheng TSDZ2B 48V 500W Mid-Drive Kit?

On the specs we track, they're closely matched. The Tongsheng TSDZ2B 48V 500W Mid-Drive Kit is the cheaper at $331.

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Full spec sheet

marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.

Spec Bafang BBS02B 48V 750W Mid-Drive Kit Tongsheng TSDZ2B 48V 500W Mid-Drive Kit
US price $499 $331
BrandBafangTongsheng
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).

What's the difference between the Bafang BBS02B 48V 750W Mid-Drive Kit and Tongsheng TSDZ2B 48V 500W Mid-Drive Kit?

Where the two actually differ on the specs we track (6 of 13). Matching specs are omitted.

  • Motor power: Bafang BBS02B 48V 750W Mid-Drive Kit 750 vs Tongsheng TSDZ2B 48V 500W Mid-Drive Kit 500
  • Max torque: Bafang BBS02B 48V 750W Mid-Drive Kit 120 vs Tongsheng TSDZ2B 48V 500W Mid-Drive Kit 100
  • System weight: Bafang BBS02B 48V 750W Mid-Drive Kit 9.2 vs Tongsheng TSDZ2B 48V 500W Mid-Drive Kit 7.7
  • Wheel size compatibility: Bafang BBS02B 48V 750W Mid-Drive Kit 20-29 inch vs Tongsheng TSDZ2B 48V 500W Mid-Drive Kit all wheel sizes (68-75mm BSA BB shell)
  • Sensor type: Bafang BBS02B 48V 750W Mid-Drive Kit cadence vs Tongsheng TSDZ2B 48V 500W Mid-Drive Kit torque + cadence
  • Pedal assist levels: Bafang BBS02B 48V 750W Mid-Drive Kit 9 vs Tongsheng TSDZ2B 48V 500W Mid-Drive Kit 5

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