Hub Motor Stuff

	Hub Motors Grin's full range of front and rear hub motors: light geared hubs for hills, powerful direct drives with regen braking. Bare or pre-laced, choice of windings.
	Motor Hardware Hub motor hardware and repair parts: disk rotors, spacer washers, axle nuts, ball bearings, hall sensors, side covers, plus Statorade and Hubsink cooling.
	Cooling Mods Grin hub motor cooling mods: Statorade ferrofluid and Hubsink heat sinks that shed heat and boost the continuous power your hub motor can handle on long, hard climbs.
	Rims 32h and 36h rims for your wheel builds. All of our hub motors have 36-hole flanges, except for our own Grin All-Axle motor, which is 32 holes.
	Spokes Custom-cut Sapim Strong single-butted spokes for hub-motor wheel builds: 13-14g and 12-13g, in black and silver. Use our spoke calculator for length.
	Freewheels and Cassettes Almost all Grin-supplied hub motors now use Shimano-HG compatible cassette freehubs. We stock these in 7-10 speeds, and also carry a range of screw-on freewheels with small 11T cogs for people using older/cheaper hub motors with the threaded freewheel mount. Not sure of the difference? Sheldon Brown can tell you.

Everything for the motor and the wheel it spins in: our hub motors, plus the parts to lace one into a finished wheel. That includes spokes and rims, freewheels and cassettes for your gears, axle and mounting hardware, and cooling upgrades like Statorade for hard-working motors. Lacing your own wheel? Our spoke calculator gets the spoke length right, or open any category below.

Hub Motor Stuff

Hub Motor Stuff

Hub Motors

Motor Hardware

Cooling Mods

Rims

Spokes

Freewheels and Cassettes