The Garage

Electric

Razor Dirt Rocket MX125

Electric, —, US version

Partly verified

No CPSC recall found for the Razor Dirt Rocket MX125 (no model year printed to match), checked 2026-10-15. Recalls

Spec card PDF

Electric driveline

4 of 9 filled

Battery
12 V, 5 Ah
Verified, read off the manual page: Manual p. 13 · checked 2026-10-19 source [1]
Battery energy
Not yet verified
Stock controller
Not yet verified
Motor
100 watt, high-torque, chain-driven, rear-wheel drive
Research level: Spec sheet (research) · checked 2026-10-19 source [2]
Rated power
Not yet verified
Maximum power
Not yet verified
Top speed
HIGH 8 mph (13 km/h); LOW 5 mph (8 km/h)
Verified, read off the manual page: Manual p. 6 · checked 2026-10-19 source [1] · as printed
Pedals or footpegs
foot pegs
Verified, read off the manual page: Manual p. 8 · checked 2026-10-19 source [1] · as printed
Claimed range
Not yet verified

Rider

3 of 3 filled

Maker’s age guidance
Manufacturer’s suggested minimum rider age is 7+ in the HIGH speed setting and 5+ in the LOW speed setting. The default setting is HIGH.
Verified, read off the manual page: Manual p. 1 · checked 2026-10-19 source [1]
Maximum rider weight
110 lb (50 kg)
Verified, read off the manual page: Manual p. 1 · checked 2026-10-19 source [1]
Maker’s intended use
The electric product is intended for use on flat, dry surfaces, such as pavement or level ground, without loose debris, such as sand, leaves, rocks or gravel.
Verified, read off the manual page: Manual p. 1 · checked 2026-10-19 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

Wheels and tires

0 of 4 filled

Front rim, rear rim, front tire, rear tire
Not yet verified

Suspension

0 of 7 filled

Fork, fork travel, shock travel, stock fork spring rate, stock shock spring rate, static sag, bike only, race sag, rider on
Not yet verified

Service specs

0 of 2 filled

Fork oil, brake fluid
Not yet verified

Dimensions

0 of 3 filled

Seat height, wheelbase, weight
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 2026-10-19. 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 appear here once a stock size is on file.

No part specs verified for this bike yet.

8 part specs not yet verified; see data coverage.

Tools for this bike

Compare with

All 8 comparisons for this bike

The e-bike line

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

Riding

Where kids can ride: tracks and areas whose own pages mention young riders.

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

4 of 33 fields read off a manual page.

Not yet verified (28): front sprocket, rear sprocket, chain pitch, chain links, front rim, rear rim, front tire, rear tire, fork, fork travel, shock travel, fork spring rate, shock spring rate, static sag, race sag, seat height, wheelbase, weight, battery energy (wh), controller, controller amps, claimed range, rated power, maximum power, tire pressure (off-road), chain slack, fork oil, brake fluid.

From a spec sheet, awaiting a manual page (1): motor.

See coverage for every bike

Sources

  1. 1
    Razor MX125 / SX125 McGrath Owner's Manual (Razor USA LLC, copyright 2003-2026; no model year printed)pp. 1, 6, 8, 13Manual page, verified. Covers battery, battery capacity (Ah), top speed, pedals or footpegs, maker’s age guidance, youngest age printed, maximum rider weight, maker’s intended use; checked 2026-10-19.
  2. 2
    Razor USA product page, Dirt Rocket MX125, Specifications (razor.com)Manufacturer web or spec sheet, research level. Covers motor; checked 2026-10-19.

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
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