Bafang RM G040.DC

Rear hub

The Bafang RM G040.DC is an e-bike motor with a 250, 350 or 500 W rating, a nominal 36, 43 or 48 V, 135mm over-locknut spacing, an operating range of -20℃~45℃ and an ingress rating of IP65.

Last updated: 5 September 2026

What we found

Published as 250 / 350 / 500 W · 36 / 43 / 48 V · RM G040.250.DC / RM G040.350.DC / RM G040.500.DC.
11 specifications are published for it, each with the source it was read from.
No matching recall was found in the records this catalogue holds from 8 regulators.

Assembled from the evidence on this page. Every figure and count below is shown with the source it was read from.

Motor and performance

Continuous rated power: 250 / 350 / 500 W
Rated voltage: 36 / 43 / 48 V
Ingress protection: IP65
Operating temperature: -20℃~45℃

Frame and components

Finish: Shockproof black and silver coating

Compatibility

Axle length: 192mm
Motor cable length: L=250mm (optional)
Over-locknut dimension: 135mm

Identity

Engineering designation: RM G040.250.DC / RM G040.350.DC / RM G040.500.DC

How this brand publishes

Its second manual states the same figures: Both manuals state the same specification

Certification claims

Certification claimed by the manufacturer: CE / ROHS

Models documented with this motor

No model has been matched to this motor yet in the records we hold. That is a statement about our research, not about which bikes use it.