Tongsheng Comparison: The Full 2026 Range Head-to-Head
| Rating | Produit | Prix | |
|---|---|---|---|
| 8.5/10 |  Tongsheng TSDZ8Tongsheng | 336 € | |
| 8.4/10 |  Tongsheng TSDZ2BTongsheng | 306 € | |
| 7.9/10 |  Tongsheng TSDZ16Tongsheng | 366 € | |
| 7/10 |  Tongsheng TSDZ2Tongsheng | 306 € |
Every spec below comes first from Tongsheng's official spec sheet (tongsheng-e.com, checked on July 27, 2026); failing that, from specialist resellers, explicitly flagged as such. A "Not disclosed" field means no sufficiently reliable source lets us show a value.
The full table
| Tongsheng TSDZ8 | Tongsheng TSDZ2B | Tongsheng TSDZ16 | Tongsheng TSDZ2 | |
|---|---|---|---|---|
| List price | 336 € | 306 € | 366 € | 306 € |
| Year | 2024 | 2023 | 2025 | 2018 |
| Rated power | 500 / 750 W | 250 / 350 / 500 W | 1 000 W | 250 à 500 W (36 V) ou 350 à 750 W (48 V) selon configuration |
| Maximum torque | 90 / 120 / 140 N·m selon configuration | 80 N·m | 160 N·m | — |
| Voltage | 36 V / 48 V | 24 V / 36 V / 48 V | 48 V | 36 V / 48 V |
| Sensor | Vitesse + couple | Vitesse + couple | Couple intégré | Couple + cadence |
| Water resistance (IP) | IP65 | IP65 | — | — |
| Bottom bracket | 68 ou 73 mm | 68 à 75 mm | 68 à 73 mm | 68 à 73 mm (norme JIS) |
| Weight | 4,8 kg | 3,6 kg | — | 3,6 kg |
What the table reveals
Two official motors, two unconfirmed ones
This is the most useful takeaway from this comparison:
| Model | Spec sheet source |
|---|---|
| TSDZ8 | Official (tongsheng-e.com) |
| TSDZ2B | Official (tongsheng-e.com) |
| TSDZ16 | Resellers (2 consistent sources on torque) |
| TSDZ2 | Resellers (inconsistent sources on torque) |
The TSDZ8 and TSDZ2B are, as of this writing, the only two models Suzhou Tongsheng Electrical Appliance Co., Ltd. still lists in its official catalog. The TSDZ16 and TSDZ2 are genuinely sold under the Tongsheng name, but their specs rest entirely on third-party sources.
The most useful point of this comparison. A claimed "160 N·m" for the TSDZ16 isn't necessarily less credible than an official "140 N·m" for the TSDZ8 — but it doesn't carry the same weight of proof. We treat the two differently, and say so.
Torque follows a range logic, not a single value
| Model | Maximum torque |
|---|---|
| TSDZ16 | 160 N·m (unofficial) |
| TSDZ8 | 90 / 120 / 140 N·m (official, by configuration) |
| TSDZ2B | 80 N·m (official, single value) |
| TSDZ2 | 50 to 80 N·m (unofficial, unreconciled) |
The TSDZ8 is the only model for which Tongsheng explicitly publishes a range of torque tied to configuration — which explains why resellers quote different figures for the same motor without any of them being wrong.
Weight and water resistance aren't confirmed for the unofficial models
The TSDZ16 and TSDZ2 each carry at least one "Not disclosed" field in the table: weight and water resistance for the TSDZ16 (single source), torque and water resistance for the TSDZ2 (unreconciled sources). That's not an oversight — it's an honest reflection of what's actually verifiable.
Head-to-head pairs
TSDZ8 vs TSDZ2B — the real dilemma of the official catalog
| Tongsheng TSDZ8 | Tongsheng TSDZ2B | |
|---|---|---|
| List price | 336 € | 306 € |
| Year | 2024 | 2023 |
| Rated power | 500 / 750 W | 250 / 350 / 500 W |
| Maximum torque | 90 / 120 / 140 N·m selon configuration | 80 N·m |
| Voltage | 36 V / 48 V | 24 V / 36 V / 48 V |
| Sensor | Vitesse + couple | Vitesse + couple |
| Water resistance (IP) | IP65 | IP65 |
| Bottom bracket | 68 ou 73 mm | 68 à 75 mm |
| Weight | 4,8 kg | 3,6 kg |
The only two motors fully documented by Tongsheng. The TSDZ8 nearly doubles available torque; the TSDZ2B remains the lightest and most voltage-versatile.
→ The detailed TSDZ2B vs TSDZ8 comparison
TSDZ8 vs TSDZ16 — confirmed power against claimed power
| Tongsheng TSDZ8 | Tongsheng TSDZ16 | |
|---|---|---|
| List price | 336 € | 366 € |
| Year | 2024 | 2025 |
| Rated power | 500 / 750 W | 1 000 W |
| Maximum torque | 90 / 120 / 140 N·m selon configuration | 160 N·m |
| Voltage | 36 V / 48 V | 48 V |
| Sensor | Vitesse + couple | Couple intégré |
| Water resistance (IP) | IP65 | — |
| Bottom bracket | 68 ou 73 mm | 68 à 73 mm |
| Weight | 4,8 kg | — |
The TSDZ16 wins on paper (160 N·m versus a 140 N·m ceiling), the TSDZ8 wins on certainty: every one of its values is confirmed by the manufacturer.
→ The detailed TSDZ8 vs TSDZ16 comparison
In summary
Three numbers to remember from this comparison:
- 2 out of 4: the number of Tongsheng motors in this selection with a fully official spec sheet (TSDZ8, TSDZ2B).
- 90 to 140 N·m: the TSDZ8's official torque range — the reason resellers quote different figures without being wrong.
- 306 to 366 €: the confirmed entry price by model — 306 € for the TSDZ2B and TSDZ2, 336 € for the TSDZ8, 366 € for the TSDZ16, a gap that broadly tracks available torque.
Frequently asked questions
Why is the TSDZ8’s torque shown as a range?
Because that’s how Tongsheng officially publishes it: 90, 120, or 140 N·m depending on the kit configuration. Resellers who quote a single figure are citing one of the three, rarely specifying which.
Why is the TSDZ16 marked "unofficial"?
Because it doesn’t appear on any Tongsheng manufacturer spec sheet (tongsheng-e.com), unlike the TSDZ8 and TSDZ2B. Its specs come from two consistent resellers, which remains a weaker source than a manufacturer sheet.
Why isn’t the TSDZ16’s weight disclosed?
A single source (Velocite) gives a weight of 6 kg for the TSDZ16, unconfirmed by a second reseller or the manufacturer. We’d rather mark it as not disclosed than show an unverified figure.
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