Head to head

Pro SS 4.0VSXE Pro S

Comparing 2 of 3

Show source notes

E Ride Pro · 2026

Pro SS 4.0

21″ front wheel swap(est.)

Arctic Leopard · 2026

XE Pro S

21″ front wheel swap(est.)

CAdd a bike

Summary

Claimed figures · blanks excluded

Most peak power: XE Pro S20 kW
Lightest: XE Pro S159 lb72.1 kg
Biggest battery: XE Pro S3,960 Wh
Best power-to-weight: XE Pro S277 W/kg
Lowest price (USD): Pro SS 4.0$4,999

Measured against each other

Peak power

Δ 2 kW

Pro SS 4.018 kW
XE Pro S20 kW

Power-to-weight

Δ 39 W/kg

Pro SS 4.0238 W/kg
XE Pro S277 W/kg

Battery capacity

Δ 360 Wh

Pro SS 4.03,600 Wh
XE Pro S3,960 Wh

Weight

Δ 8 lb3.6 kg

Pro SS 4.0167 lb75.7 kg
XE Pro S159 lb72.1 kg

Shorter is lighter.

Front travel

Pro SS 4.0—
XE Pro S200 mm

Rear travel

Pro SS 4.0—
XE Pro S200 mm

Size & stance

To scale, lined up at the rear axle. Rims shown without tires. Hover a bike below to isolate it.

Full specifications

Price

PricePrices move. Check the date and currency.

$4,999

$5,100

Motor & performance

Peak powerPeak, not continuous. It's a burst number that brands measure in different ways.

18 kW24 hp

20 kW27 hp

Rated powerWhat the motor can sustain. Closer to what you feel on a long climb.

—

Power-to-weightCalculated by Mesa Project from claimed peak power and claimed weight.

238 W/kgCALC

277 W/kgCALC

Torque (as published)Brands quote torque at the motor or at the rear wheel. Read the note before comparing.

520 Nm384 lb-ft

600 Nm443 lb-ft

Top speed

60 mph97 km/h

62 mph100 km/h

Battery & charging

Battery capacityWatt-hours is the fuel-tank number. Volts × amp-hours.

3,600 Wh3.6 kWhCALC

3,960 Wh3.96 kWhCALC

Pack voltage

72 V

Pack amp-hours

50 Ah

55 Ah

Swappable batteryA rider-removable pack that can be replaced with a compatible spare. Does not imply tool-free removal or compatibility across models.

—

Range claimBrands test at different steady speeds, so we don't crown a winner. Trail range will be lower.

64 mi103 km

50 mi80 km

Charge time

3.5 h

—

Chassis

WeightWhat you'll be lifting out of a rut. Check whether the battery is included.

167 lb75.7 kg75.7 kg167 lb

159 lb72.1 kg72.1 kg159 lb

Seat heightUnladen. Sag brings it down once you sit on it.

831 mm32.7 in

838 mm33 in

Ground clearance

279 mm11 in

290 mm11.4 in

Wheelbase

1,260 mm49.6 in

1,300 mm51.2 in

Frame

—

Suspension

Fork

FastAce inverted fork, adjustable

KKE 37 mm Fork, 200 mm travel, compression, rebound & preload adjustab

Front travel

—

200 mm7.9 in

Shock

FastAce shock, adjustable

KKE Rear Shock, 200 mm travel, compression, rebound & preload adjustab

Rear travel

—

200 mm7.9 in

Wheels & brakes

Front wheel

19″CALC

Rear wheel

18″CALC

16″CALC

Front tire

2.75-19

70/100-19

Rear tire

3.00-18

90/100-16

Front brake

—

Rear brake

—

Electronics

Ride modes

—

Regen braking

—

Display

LCD dash, Bluetooth

TFT, NFC keyless

Ownership

Warranty

1 Year Limited Warranty

Highlighted = best among these bikes, where “best” is clear-cut. Range claims and torque are never ranked, because brands measure them differently.