EMOKO C91 Fat Tire Electric Bike

The EMOKO C91 is a retro-style electric bike built around a 20-inch fat-tyre platform and aluminium-alloy frame. Its long leather saddle, wide 20 × 4.0-inch tyres and distinctive frame design create a practical format for urban journeys and suitable mixed-surface riding.

A 1000W 48V brushless rear hub motor provides electric assistance with five pedal-assistance levels. The bike has a default speed setting of 15.5 mph and a maximum released speed of 31 mph, while the 7-speed drivetrain provides additional gearing for different gradients and riding conditions.

The 48V 20Ah lithium-ion battery provides a maximum assisted range of approximately 93 miles. When using accelerator mode, the page lists a riding range of approximately 50 miles.

Actual riding range can vary depending on rider weight, pedal-assistance level, accelerator use, gradients, surface conditions, tyre pressure, temperature, stopping frequency and riding style. Higher speeds, frequent acceleration and demanding routes can reduce the distance achieved from a single charge.

The C91 uses 20 × 4.0-inch fat tyres together with a front spring suspension fork and rear suspension. This full-suspension configuration helps absorb surface irregularities while the wider tyre profile provides additional contact with the riding surface.

Mechanical disc brakes are combined with a 7-speed drivetrain, colourful LCD display, LED headlight, rear brake light and bell. Charging time is approximately 6–7 hours. The bike weighs approximately 42 kg, while the detailed specification lists a maximum weight capacity of 180 kg.

With its 1000W brushless rear hub motor, 48V 20Ah battery, 31 mph maximum released speed and 93-mile assisted range, the EMOKO C91 combines a retro fat-tyre design with full suspension, mechanical disc brakes and a practical 7-speed drivetrain.

Size & Dimensions
A — Max. Ebike Height	113.5 cm (44.7 in)
B — Max. Frame Height	86 cm (33.9 in)
C — Flank Tube Length	40 cm (15.7 in)
D — Top Tube Length	86 cm (33.9 in)
E — Standover Height	53 cm (20.8 in)
F — Seat Height	84.5 cm (33.3 in)
G — Bottom Bracket Height	36 cm (14.1 in)
H — Wheelbase Length	112.5 cm (44.3 in)
I — Total Length	174 cm (68.5 in)