The top of the lineup: the GT73 frame with a 3000W motor, two 60V batteries and a listed 37 to 46 MPH.
It is the most capable bike Riding'times lists. Compared with the GT73 you get a 3000W motor, 338 N·m of torque, 60V 18Ah x2 batteries and a 5 to 6 hour charge instead of 9 to 10. It costs $500 more, and the shop even lists a separate 'GT73 PRO price difference' item for people upgrading. That is a lot of bike, and a lot of speed, so it is only for experienced riders in the right places.
The GT73 Pro shares the 73.82 x 28.74 x 45.91 inch body, 25 x 3 inch tires, 7074 aluminum rims, 330 lb load rating and IPX4 rating with the standard GT73. The changes sit in the motor, battery system and charger.
A 3000W rear gear hub motor with 338 N·m of torque and a listed 37 to 46 MPH, depending on road condition and load.
Two removable UL 2849-compliant 60V 18Ah batteries and dual 67.2V 3A chargers cut the charge time to roughly half of the standard GT73.
Dual hydraulic brakes with EABS (this page lists 180 mm discs, while the standard GT73 page says 230 mm), front and rear LED lights and turn signals.
The range figures match the standard GT73, even though the voltage is higher. Treat them as best-case numbers and expect less at full speed.
| Motor | Rear gear hub 3000W |
| Torque | 338 N·m |
| Max speed | 37 to 46 MPH (varies with road and load) |
| Battery | Dual 60V 18Ah removable lithium, UL 2849 compliant |
| Charger | Dual 67.2V 3A, 5 to 6 h |
| Controller | 60V 40A integrated Fardriver |
| Range | Throttle only 85 mi; pedal assist 155 mi (varies) |
| Brakes | Dual hydraulic discs, 180 mm + EABS (per this page) |
| Tires | 25 x 3 in off-road (70/100-19) |
| Suspension | All-aluminum barrel-axle inverted fork + rear suspension |
| Water resistance | IPX4 |
| Net weight | 123 lb |
| Max load | 330 lb |
| Product size | 73.82 x 28.74 x 45.91 in (L x W x H) |
The GT73 Pro is the strongest bike in the lineup and it is priced fairly for the hardware. Be honest about your experience before you buy something this fast.
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