Tongsheng
Tongsheng TSDZ2B 48V 500W Mid-Drive Kit
$331
Best Ebike Conversion Kits · head-to-head
Tongsheng TSDZ2B 48V 500W Mid-Drive Kit vs Skarper DiskDrive E-Bike Conversion System
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.
Skarper
Skarper DiskDrive E-Bike Conversion System
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Released 2023
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Tongsheng TSDZ2B 48V 500W Mid-Drive Kit | Skarper DiskDrive E-Bike Conversion System |
|---|---|---|
| US price | $331 | — |
| Brand | Tongsheng | Skarper |
| Released | — | 2023 |
| Motor type | mid-drive | brushless hub motor disc-drive |
| Motor power | 500 | 250 |
| Voltage | 48 | — |
| Max torque | 100 | 76 |
| Battery included | No | Yes |
| Battery capacity | — | 240 |
| System weight | 7.7 | 9.9 |
| Wheel size compatibility | all wheel sizes (68-75mm BSA BB shell) | 26-29 inch (disc brake required, 160mm rotor) |
| Sensor type | torque + cadence | cadence (DynamicClimb gradient-adaptive) |
| Max speed | 28 | 16 |
| Pedal assist levels | 5 | — |
| Display type | LCD | smartphone app (Bluetooth) |
| Install time | — | 10 |
Sources — Tongsheng TSDZ2B 48V 500W Mid-Drive Kit: varstrom.com (verified 2026-06-27). Skarper DiskDrive E-Bike Conversion System: skarper.com (verified 2026-06-27).
What's the difference between the Tongsheng TSDZ2B 48V 500W Mid-Drive Kit and Skarper DiskDrive E-Bike Conversion System?
Where the two actually differ on the specs we track (9 of 13). Matching specs are omitted.
- Motor type: Tongsheng TSDZ2B 48V 500W Mid-Drive Kit mid-drive vs Skarper DiskDrive E-Bike Conversion System brushless hub motor disc-drive
- Motor power: Tongsheng TSDZ2B 48V 500W Mid-Drive Kit 500 vs Skarper DiskDrive E-Bike Conversion System 250
- Max torque: Tongsheng TSDZ2B 48V 500W Mid-Drive Kit 100 vs Skarper DiskDrive E-Bike Conversion System 76
- Battery included: Tongsheng TSDZ2B 48V 500W Mid-Drive Kit false vs Skarper DiskDrive E-Bike Conversion System true
- System weight: Tongsheng TSDZ2B 48V 500W Mid-Drive Kit 7.7 vs Skarper DiskDrive E-Bike Conversion System 9.9
- Wheel size compatibility: Tongsheng TSDZ2B 48V 500W Mid-Drive Kit all wheel sizes (68-75mm BSA BB shell) vs Skarper DiskDrive E-Bike Conversion System 26-29 inch (disc brake required, 160mm rotor)
- Sensor type: Tongsheng TSDZ2B 48V 500W Mid-Drive Kit torque + cadence vs Skarper DiskDrive E-Bike Conversion System cadence (DynamicClimb gradient-adaptive)
- Max speed: Tongsheng TSDZ2B 48V 500W Mid-Drive Kit 28 vs Skarper DiskDrive E-Bike Conversion System 16
- Display type: Tongsheng TSDZ2B 48V 500W Mid-Drive Kit LCD vs Skarper DiskDrive E-Bike Conversion System smartphone app (Bluetooth)