Hub motor for tandem

[huffinandpuffin]

I’m looking for a 48v 750 watt (or more) that will fit a 145 mm dropout spacing narrower ok). Disc brake and 11 speed cassette. seems all of the 750 watt are for fat bikes.

 

[Chalo]

11 speed cassette is your hangup there. Most rear hub motors with freehubs are for 8/9/10, and most rear hub motors are made for 7sp freewheels, not cassettes.

You'll have an easier time getting what you want, if you don't want as tall a stack of different things.

One thing that distinguishes a tandem from a single bike is there's always much more weight on the front wheel of the tandem. So that makes a front hub motor a good option. Then you don't have to worry about fad-chasing gear counts that go to eleven.

 

[huffinandpuffin]

Tried that. Thanks

 

[amberwolf]

I’m looking for a 48v 750 watt (or more) that will fit a 145 mm dropout spacing narrower ok). Disc brake and 11 speed cassette. seems all of the 750 watt are for fat bikes.

All-Axle Hub Motor - Grin Products - Product Info

The All Axle motor takes the simplicity and robustness of the direct drive hub motor, and optimizes it for the modern bike platform. This hub is fully compatible with all quick release and thru-axle bike forks, it is over 30% lighter than standard generic hubs of similar power (4kg vs 6kg), and...

ebikes.ca

• Both Regular (27mm stator) and Max45 models (45mm stator) available.
• Lightweight 4.0 kg for regular / 6.0 kg for Max45, vs ~6kg and ~9kg for comparable generic DD motor
• 0.35mm Laminations for low motor drag when pedaling unassisted
• Integrated Torque Arm with secure frame mounting clamp
• Uses 32 Spoke Holes for vastly more in stock rim options
• Min 18mm Disk Caliper Clearance fits most (but not all) calipers without spacers
• Rear Specific
  • Built-In Torque and PAS Sensor. No need for bottom bracket torque or cadence sensors
  • Support both Shimano HG and SRAM XDR cassettes, with XDR for wide range 11-12 speed
  • Fits Most Rear Dropout Standards (135mm quick release, 12x142 Thru Axle, 12x148 Boost Thru Axle, 12x157 Superboost, 145,160, and 167 Tandem Axles, 170&190 Fatbike, 177&197 Thru-Axle Fatbike)

Model	Weight	Stator Width	Axle Bore	Frame / Dropout Compatibility
V3 Rear	4.3 kg	27mm	12mm	Slotted Dropouts: 135mm,145mm (tandem), 160mm (Santana) Thru Axle: 12x142, 12x148 (Boost), 12x157 (Superboost), 12x167 (Santana)
Max45 Rear	6.3 kg	45mm	12mm	Slotted Dropouts: 170mm (4" Tire), 190mm (5" Tire) Thru Axle: 12x177 (4" Tire), 12x197 (5" Tire)