Other Motors

Other Motors

Brompton Kit

Grin's Brompton front hub kit uses the Crystalyte SAW20 direct drive motor: silent, with regen braking, turning this iconic folder into a clean, capable ebike.

eZee Kits

eZee builds one of the original high-torque geared hub motors: light, well-made, and a strong hill climber. Grin has sold and tuned eZee kits since 2007.

FH212-RH212

Nine Continent's FH212 and RH212 are our value direct drive hubs: silent, regen-capable, and durable, with a 212mm rotor for torque. Heavier at about 6.5 kg.

G310-G311

Bafang's G311 (front) and G310 (rear) are our smallest, lightest hub motors at about 2.3 kg: discreet, totally silent, with surprising punch for their size.

GMAC

The GMAC is Grin's clutchless take on the powerful MAC geared motor: strong regen braking, with a round axle and torque arm that resist spinout under load.

Marine Kit

We’ve also adapted our All Axle hub motor with special high RPM windings and mounting hardware to power propeller shafts in marine applications. This system is primarily geared at those retrofitting sailboats with aging 8-12 horsepower inboard diesel engines. This kit is currently in development / pilot stage.

SX1-SX2

The Shengyi SX1 and SX2 sit between the tiny Bafang G310 and the bigger eZee: silent helical-gear motors with strong torque and built-in overheat protection.

Freegen + Magic Drive

Grin and Charge Bike's Freegen and Magic Drive: innovative hub motors with regenerative braking and pedal cadence independent of wheel speed. Pre-order now.

This is where to read up on the different hub motors we build conversion kits around. Most are proven third-party motors, which we pair with our own controllers, batteries, and Cycle Analyst displays to make complete, well-integrated kits. Each page below covers one motor in detail, from the GMAC and Bafang G310/G311 to the Shengyi SX, eZee, and Nine Continent, plus specialty options like the Brompton folding kit and marine drive.

Ready to shop? Browse the kits on our other kits page, check the compatibility guide, see real conversions in the project gallery, or if you're new to ebikes, start with our Start Here guide.