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Mesa Project
Super73 B1G in slate blue, side view

Photo: Super73Photo policy

E-bikes

Super73

B1G

2025

The tall one in Super73's A-Series (33 in. seat). Class 2 (20 mph) throttle e-bike with pedals, a bench seat and 20 in. fat tires.

Editorial opinion. Specs below are sourced.

Price

$2,595

Brand's price on its site, Nov 13, 2026.

Where these specs come fromSpecs from Super73's own product page. Super73 labels this model year MY25.

Power

—not published

Weight

90 lb40.8 kg40.8 kg90 lb

Lighter than 64 of 80 in index

Battery

520 Wh0.52 kWh

Above 5 of 82 in index

W/kg

—not published

Seat height

838 mm33 in

Lower than 28 of 72 in index

Front travel

—not published

Specifications

[n] = source · CALC = calculated by Mesa Project

Price

Price
$2,595[1]Brand's price on its site, Nov 13, 2026.

Motor & performance

Peak power
Not published
Rated power
0.5 kW1 hp[1]500 W nominal. Super73 doesn't publish a peak figure.
Power-to-weight
Not published
Torque (as published)
Not published
Top speed
20 mph32 km/h[1]20 mph, Class 2.
E-bike class
Class 2 (throttle to 20 mph)[1]

Battery & charging

Battery capacity
520 Wh0.52 kWh[1]
Pack voltage
52 V[1]
Pack amp-hours
10 Ah[1]
Swappable battery
Not published
Range claim
20 mi32 km[1]Listed as 20 miles on one battery, at 20 mph throttle-only.
Charge time
5.5 h[1]Listed as 5–6 hours.

Chassis

Weight
90 lb40.8 kg40.8 kg90 lb[1]90 lb.
Seat height
838 mm33 in[1]33 in.
Ground clearance
Not published
Wheelbase
Not published
Frame
Aluminum[1]

Suspension

Fork
Rigid[1]
Front travel
Not published
Shock
Rigid (no rear suspension)[1]
Rear travel
Not published

Wheels & brakes

Front wheel
20″[1]
Rear wheel
20″[1]
Front tire
BDGR 20 × 4.5[1]
Rear tire
BDGR 20 × 5[1]
Front brake
Super73 2-piston hydraulic[1]
Rear brake
Super73 2-piston hydraulic[1]

Electronics

Ride modes
Single speed · Thumb throttle[1]
Regen braking
Not published
Display
Not published

Ownership

Warranty
Not published

Sources

  1. [1]SUPER73-B1GSuper73 · MANUFACTURER · CHECKED 2026-11-13

Values are manufacturer claims as published by the source unless tagged otherwise. Found an error? Report it.

Compare against

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    B1G vs X1S →
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    Macfox · 2026

    M16

    0.8 kW · 66 lb29.8 kg · 499 Wh

    • → M16 is 24 lb11 kg lighter
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    B1G vs M16 →
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    Macfox · 2026

    X7

    0.8 kW · 87 lb39.5 kg · 624 Wh

    • → X7 is 3 lb1 kg lighter
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    B1G vs X7 →