Head to head

SRPNT X3VSUltra Bee

Comparing 2 of 3

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Throne Cycles · 2026

SRPNT X3

21″ front wheel swap(est.)

Sur-Ron · 2023

Ultra Bee

21″ front wheel swap(est.)

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Summary

Claimed figures · blanks excluded

Most peak power: SRPNT X313 kW
Lightest: SRPNT X3160 lb72.6 kg
Biggest battery: Ultra Bee4,070 Wh
Best power-to-weight: SRPNT X3179 W/kg
Most front travel: Ultra Bee239 mm
Lowest price (USD): SRPNT X3$3,599

Measured against each other

Peak power

Δ 0.5 kW

SRPNT X313 kW
Ultra Bee12.5 kW

Power-to-weight

Δ 32 W/kg

SRPNT X3179 W/kg
Ultra Bee147 W/kg

Battery capacity

Δ 1,190 Wh

SRPNT X32,880 Wh
Ultra Bee4,070 Wh

Weight

Δ 27 lb12.2 kg

SRPNT X3160 lb72.6 kg
Ultra Bee187 lb84.8 kg

Shorter is lighter.

Front travel

Δ 39 mm

SRPNT X3200 mm
Ultra Bee239 mm

Rear travel

SRPNT X3—
Ultra Bee244 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.

$3,599

$6,499

Motor & performance

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

13 kW17 hp

12.5 kW17 hp

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

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

179 W/kgCALC

147 W/kgCALC

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

460 Nm339 lb-ft

441 Nm325 lb-ft

Top speed

55 mph89 km/h

56 mph90 km/h

Battery & charging

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

2,880 Wh2.88 kWhCALC

4,070 Wh4.07 kWhCALC

Pack voltage

72 V

74 V

Pack amp-hours

40 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.

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

60 mi97 km

87 mi140 km

Charge time

3.5 h

4 h

Chassis

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

160 lb72.6 kg72.6 kg160 lb

187 lb84.8 kg84.8 kg187 lb

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

848 mm33.4 in

909 mm35.8 in

Ground clearance

269 mm10.6 in

318 mm12.5 in

Wheelbase

1,250 mm49.2 in

1,379 mm54.3 in

Frame

—

Forged aluminum alloy

Suspension

Fork

Inverted Suspension Fork with 200mm Travel

37 mm inverted, adjustable compression & rebound

Front travel

200 mm7.9 in

239 mm9.4 in

Shock

KKE Suspension Link System

TR Intersect monoshock, adjustable preload, compression & rebound

Rear travel

—

244 mm9.6 in

Wheels & brakes

Front wheel

19″CALC

19″

Rear wheel

19″CALC

19″

Front tire

1.4-19

80/100-19

Rear tire

1.6-19

90/90-19

Front brake

—

240 mm hydraulic disc

Rear brake

—

240 mm hydraulic disc

Electronics

Ride modes

Eco · High · Sport

Sport · Daily · Eco · Reverse

Regen braking

—

Sur-Ron Energy Regenerative System (SERS)

Display

Full Color

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Ownership

Warranty

1 Year Limited Factory Warranty

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