PW-X3

Yamaha PW-X3 was the brand's 2022 reset: 20% smaller and roughly 10% lighter than the PW-X2, down to 2.75 kg, with peak torque lifted to 85 Nm to sit alongside the Bosch Performance Line CX and Shimano EP8. On paper it reads like a class benchmark. On the dyno it reads differently — Velomotion measured a peak of 682 W (at 70–75 rpm with 250 W of rider input), which puts it at the lower end of a field where the strongest rivals push past 800 W. This is not the motor for chasing a power number.

What it does superbly is feel natural. The PW-X3 needs real rider input before it commits, then meters out a smooth, progressive shove with very little of the surge or rattle that defines some competitors. Crucially it is one of the quieter units in its class — Velomotion rated it noticeably quieter on the climbs than a Shimano EP8 or a Bosch CX, and praised the complete absence of rattle on the descents. The honest catch Velomotion also flagged is efficiency: on the flat the PW-X3 draws significantly more than most of the competition, and only came good once the gradient kicked up.

The trade-off is clear: a quiet, refined, low-weight drive that rewards a cadence-led, spin-it style over brute lugging, but one that is neither the most powerful nor the most frugal on rolling terrain. Against the current class — Bosch CX Gen 5 (still 85 Nm / 600 W) and Shimano EP801 (85 Nm) on torque, and the lighter, far punchier DJI Avinox (2.52 kg, 105 Nm, 850 W) that now sets the benchmark — the PW-X3's case rests on quietness and feel rather than headline output.