QS138 90H (4000w)｜ Other Products

This motor is perfect for medium to large size electric motorcycles. With its extra long body compared to the 70h model you will be able to achieve a higher torque and power. This motor is capable of over 35kW Bursts! 
Includes

1 X QS 138 90h Mid Drive Motor

Tapered Shaft with key: 14T 428 sprocket

Gear Reduction Variant does not include sprocket

Compatible sprockets HERE

Key Features 

Light weight and small dimension compared to other motors of similar power outputs
V configured rotor design allows for higher RPM with flux weakening
High Torque suitable for high performance high load situations such as climbing and racing.
Supports regenerative braking
Proven reliability

Compatibility

EM-150 Controller
EM-200 Controller
EM-260 Controller

Specification (via QS)
Motor Type: BLDC IPM Brand: QS Motor, QSMOTOR Motor Design: Single Axle Matched Tire: 17 inch Magnet Height: 90mm, 5 pole pairs Rated Power: 7500W Peak Power: 13.5kW Rated Voltage: 72V Speed: 4000RPM With Flux Weakening(RPM): 6500RPM Rated Torque: 14.3N.m Max Torque: 72.N.m Cooling Method: Air Cooling Max Efficiency: 94% Continuous Battery Current: 89A Peak Battery Current: 200A Thermic Probe: KTY83/122 (as default) Working Temperature: 70-120C, peak 150C Hall Sensor: Single Hall Set with Waterproof Connectors Phase Wire: 20mm2 Cross Section (not include insulation layer) Waterproof Grade: IP66Color: Black N.W./G.W.: approx. 13kgs/14kgs Package Dimensions: 34cmx34cmx33cm/piece
E&C Findings
Based on our testing we have come up with some alternative ratings. These ratings are strictly our opinion and warranty will not be provided beyond QS recommended ratings.
Details
Max Battery Current: 300 amps Max Output: 22,000w or 22kw
Brand:Electro & Company Inc.Category:All ProductsSKU:400-0007Tags:All Products, Holiday Sale, On Road Kart, QS MotorsModel:V1 Direct Drive, V3 Reduction +$50