The Garage

Electric

Stock-size parts in stock at MotoSport

Sur-Ron Light Bee X 2025

Electric

Partly verified

Illustration: a Sur-Ron electric dirt bike, not this exact model.

From the owner’s manual: front tire 70/100-19, p. 13.9; rear tire 3.00-18, p. 13.9. Checked 16 Oct 2026.

Model year on file: 2025 only. Other years are added as their manuals are read.

No CPSC recall found for the 2025 Sur-Ron Light Bee X, checked 2026-10-15. Recalls

Spec card PDF

Electric driveline

8 of 9 filled

Battery
60 V, 40 Ah
Verified, read off the manual page: Manual p. 13.9 · checked 2026-09-23 source [1]
Battery energy
Not yet verified
Stock controller
FOC sine-wave controller
Verified, read off the manual page: Manual p. 13.9 · checked 2026-09-23 source [1]
Motor
PMSM, 4,000 W rated, 8,000 W peak
Verified, read off the manual page: Manual p. 13.9 · checked 2026-09-23 source [1]
Rated power
4000w
Verified, read off the manual page: Manual p. 13.9 · checked 2026-10-09 source [1] · as printed
Maximum power
8000W
Verified, read off the manual page: Manual p. 13.9 · checked 2026-10-09 source [1] · as printed
Top speed
75km/h
Verified, read off the manual page: Manual p. 13.9 · checked 2026-10-09 source [1] · as printed
Pedals or footpegs
Foot Pegs
Verified, read off the manual page: Manual p. 10.5 · checked 2026-10-09 source [1] · as printed
Claimed range
75 km (47 mi)
Verified, read off the manual page: Manual p. 13.9 · checked 2026-09-23 source [1]

Wheels and tires

2 of 4 filled

Front rim
Not yet verified
Rear rim
Not yet verified
Front tire
70/100-19
Verified, read off the manual page: Manual p. 13.9 · checked 2026-09-23 source [1]
Rear tire
3.00-18
Verified, read off the manual page: Manual p. 13.9 · checked 2026-09-23 source [1]

Suspension

2 of 7 filled

Fork
Not yet verified
Fork travel
200 mm (≈ 7.9 in, converted by MotoXSports)
Verified, read off the manual page: Manual p. 13.9 · checked 2026-09-23 source [1]
Shock travel
210 mm (≈ 8.3 in, converted by MotoXSports)
Verified, read off the manual page: Manual p. 13.9 · checked 2026-09-23 source [1]
Stock fork spring rate
Not yet verified
Stock shock spring rate
Not yet verified
Static sag, bike only
Not yet verified
Race sag, rider on
Not yet verified

Service specs

1 of 2 filled

Fork oil
Not yet verified
Brake fluid
DOT4
Verified, read off the manual page: Manual p. 10.1 · checked 2026-10-16 source [1]

Dimensions

3 of 3 filled

Seat height
830 mm (≈ 32.7 in, converted by MotoXSports)
Verified, read off the manual page: Manual p. 13.9 · checked 2026-09-23 source [1]
Wheelbase
1255 mm (≈ 49.4 in, converted by MotoXSports)
Verified, read off the manual page: Manual p. 13.9 · checked 2026-09-23 source [1]
Weight (dry/Curb weight)
57 kg (≈ 126 lb, converted by MotoXSports)
Verified, read off the manual page: Manual p. 13.9 · checked 2026-09-23 source [1]

Gearing

0 of 5 filled

Stock front sprocket, stock rear sprocket, chain pitch, stock chain links, stock final drive ratio
Not yet verified
Solid marks are owner's-manual pages; hollow marks are manufacturer web or spec-sheet figures still waiting on a manual page. Last reviewed 2026-10-16. Rows marked not yet verified are blank on purpose.

Buying parts

The stock sizes and specs this bike left the factory with, each with its source. Take them to any shop.

Retailer links below are affiliate links: we may earn a commission, at no cost to you, and it never changes the specs. Affiliate disclosure.

Tires
Front tire 70/100-19 Owner's manual p. 13.9Rear tire 3.00-18 Owner's manual p. 13.9Front tires 70/100-19 at MotoSportTubes 70/100-19 at MotoSportDirt bike tires at MotoSport

In stock at MotoSport

Prices from MotoSport’s catalog of Oct 26, 2026; check today’s price before you buy.

Front tire, stock size 70/100-19

Prices and stock from MotoSport's product catalog on Oct 26, 2026; they change, so check the price at MotoSport before you buy. Products are chosen by exact stock size, code or oil viscosity from the specs above, known brands first, then price. We have not tested them.

6 part specs not yet verified; see data coverage.

Tools for this bike

Compare with

The e-bike line

This bike's maker figures beside each state's e-bike limits

State e-moto laws

Gearing tool

The calculator prefills from this bike once its stock sprockets are verified. It works with any numbers in the meantime.

Open the gearing calculator

What's missing

17 of 33 fields read off a manual page.

Not yet verified (16): front sprocket, rear sprocket, chain pitch, chain links, front rim, rear rim, fork, fork spring rate, shock spring rate, static sag, race sag, battery energy (wh), controller amps, tire pressure (off-road), chain slack, fork oil.

See coverage for every bike

Sources

  1. 1
    Surron 2025 Light Bee X Owner's Manual, version Y029A-EN-V1.1, issued 2025-02-10 (Chongqing Qiulong Technology), hosted on Surron's own file storagepp. 10.1, 10.5, 13.9Manual page, verified. Covers front tire, rear tire, fork travel, shock travel, seat height, wheelbase, weight (dry/Curb weight), battery, battery capacity (Ah), stock controller, motor, rated power, maximum power, top speed, pedals or footpegs, claimed range, weight, as labelled, brake fluid; checked 2026-10-16.

Always confirm against the manual for your exact year before ordering parts or setting up suspension. Torque specs are deliberately not published here. How we verify a value.

Your manual prints something different? Report a value with the page it is on; every fix is listed in the corrections log.

My settings

Date / track
Sprockets run
Race sag / free sag
Fork air pressure or spring
Fork clickers (compression / rebound)
Shock clickers (low / high / rebound)
Tire pressures (front / rear)
Notes
All bikes