Tongsheng Mid-Drive Motors: Comparison and Buying Guide 2026

Tongsheng builds its TSDZ mid-drive motors across several generations — TSDZ2, TSDZ2B, TSDZ8, TSDZ16 — whose claimed torque can double depending on which reseller you ask. This site exists for one reason: to let you choose without spending your evening on it, and without being misled by a figure quoted out of context.

1. 1
   

   Tongsheng TSDZ8

   8,5/10

   336 €
   🛒Amazon🛒AliExpress
2. 2
   

   Tongsheng TSDZ2B

   8,4/10

   306 €
   🛒Amazon🛒AliExpress
3. 3
   

   Tongsheng TSDZ16

   7,9/10

   366 €
   🛒Amazon🛒AliExpress

The best Tongsheng motor in 2026

The TSDZ8, alongside the TSDZ2B, is one of only two Tongsheng motors whose spec sheet is fully published by the manufacturer: up to 140 N·m, speed + torque sensor, IP65 rating. It's our top pick for most conversions.

That doesn't make it the right choice for everyone, though.

Our alternative: lightweight and versatile

For about 30 € less (306 €), the TSDZ2B tops out at 80 N·m but remains the lightest motor in the range (3.6 kg) and supports three voltages (24/36/48 V) — plenty for everyday urban riding.

Four motors, four different answers

Tongsheng doesn't build a linear lineup: each model answers a distinct usage profile, and two of them no longer benefit from any manufacturer support at all.

The real question isn't "which Tongsheng motor is best," but "which Tongsheng motor is best for your bike and your use case."

→ Which Tongsheng motor to choose for your use case

The Tongsheng 2026 catalog

Every model we've documented. Each review breaks down the specs, the gray areas, and our verdict.

The fact nobody else points out

The TSDZ16, the highest claimed torque in the entire range, doesn't appear on any official Tongsheng spec sheet. The manufacturer's current catalog (tongsheng-e.com) stops at the TSDZ8. That's not a reason to rule it out — it's sold by serious resellers — but it is a reason to double-check the exact configuration before buying one for a demanding use case.

→ The full comparison of the entire range

How we work

We don't claim to have physically torn down all four motors in this catalog. Our method is different, and it's public: specs verified first against the manufacturer's own spec sheet, supplemented by resellers only when necessary, with the source always disclosed. When a figure is confirmed only by a single reseller — or by no manufacturer spec sheet at all — we say so rather than inventing a number.

→ Our method · Our rating system