2.2
The Brose-built Turbo Full Power 2.2 was the quiet, belt-driven heart of the Specialized Levo Gen 3 (2022-2024) — a smooth 90 Nm full-power unit prized for its near-silent, organic delivery rather than headline numbers.

Exceptionally flat and elastic — power holds at a high level across the whole cadence range with no breakdown at low or high rpm.
Specialized 2.2 is the Brose Drive S Mag rebadged and firmware-tuned for the Levo Gen 3, and it remains one of the most likeable full-power motors ever fitted to an eMTB. Specialized quotes 90 Nm of torque and 565 W of peak power at 250 W rated, with up to 400% assistance metered out in 10% MicroTune steps through Mission Control and the MasterMind TCU. The hardware underneath is more potent than that firmware envelope suggests: in Velomotion's 2022 dyno group test the Drive S Mag hit roughly 730 W at its ceiling — the strongest full-power unit in that test bar the Bosch CX — so the 565 W figure is a deliberately civilised software cap, not a hardware limit.
What sets it apart is character. The belt-and-dual-sprag-clutch driveline makes it the quietest motor in its class, with only a faint whirr in Turbo and no freewheel rattle on descents — though no lab has put a sound-pressure dBA figure to it, so that headline stays qualitative. The dyno backs up the seat-of-the-pants feel: the power curve barely sags at either end of the cadence range, so it pulls cleanly from near-standstill and keeps delivering when you spin it out. Low-speed, low-cadence torque is its calling card, and at 90 Nm it actually out-torqued the 85 Nm Shimano EP8 and 85 Nm Bosch Performance CX (Gen 4) it shared the trail with — it is genuinely good at finishing a climb that a peakier rival would stall on.
The compromises are well known. The belt drive was the Achilles heel of early Brose units; Specialized's wider, stiffer belt and rolling firmware improved durability through the 2022-2024 run but never fully banished it, and a preventative rebuild around 5,000 km is common. It is a sealed, dealer-diagnosed unit, and 36 V architecture and 565 W now look modest next to the 600 W-plus, 100 Nm crop led by its own successor, the Specialized 3.1, on the Gen 4 Levo. But for riders who value silence and smoothness over a spec sheet, the 2.2 still earns its keep.
Character
The case for and against
Strengths
- Quietest full-power motor of its generation (by ear)
- Class-leading 90 Nm torque for its era — out-torqued the 85 Nm EP8 and Bosch CX Gen 4
- Smooth, organic, traction-friendly delivery
- Flat, elastic dyno curve to ~730 W with no low- or high-cadence drop-off
- Strong flat-ground efficiency (5.5 Wh/km)
Compromises
- Belt drive remains a long-term durability watch-item (~5,000 km rebuild)
- Sealed unit, dealer-only diagnostics and no third-party tunes (no BLEvo)
- 565 W firmware cap and 36 V architecture now look modest
- No lab sound-pressure (dBA) or timed thermal-fade figure published

