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EARN YOUR DIRT
Defined By Specifications
Greatness is measured in the details. A curated collection of core metrics that power your journey and command the terrain.
Engine
125cc 4-Stroke Air-Cooled (Zongshen)
Top Speed
~56 mph (90 km/h)
Seat Height
28.1″ (14/12) / 33.9″ (17/14)
Max Load
265 lbs
125cc 4-Stroke Engine
Built for the Long Haul
A proven 125cc 4-stroke engine delivers consistent, raw power, so you can claw your way up the nastiest hills without fear of stalling.
High Ground Clearance
Dominate the Unrideable
With a high-clearance chassis and aggressive knobby tires, you'll roll right over the rocks and ruts that trap other riders.
4-Speed Manual Transmission
Find Your Rhythm
The 4-speed manual transmission puts full clutch control in your hands, giving you the precision needed to master gear synchronization and raw rider skill.
Long-Travel Suspension
Push Harder, Fear Nothing
Long-travel suspension is tuned to soak up the hits, granting you the forgiveness to push your limits on jumps and chop without the bike pushing back.
Hydraulic Disc Brakes
Precision When It Counts
Front and rear hydraulic disc brakes provide surgical stopping power, allowing you to scrub speed instantly on the sketchiest lines.
Built Around How You Ride
Zongshen® 125cc Air-Cooled Engine
Built to Rip, Not to Wrench
The Zongshen® 125cc air-cooled engine is engineered for legendary reliability, meaning you spend more time shredding the dirt and less time stuck in the garage.
Heavy-Duty 428 Chain
Zero Slack, Full Power
We’ve equipped a heavy-duty 428 chain to survive high-torque starts, so you can ride through punishing terrain without the risk of stretching or slipping.
Dual Start System
Ready on Your Terms
The Dual Start System combines an electric button with a classic kick-start, ensuring you get a reliable ignition every single time, whether you're in the garage or deep in the woods.
Hi/Lo Beam Headlight
Extend Your Session
A high-visibility Hi/Lo beam headlight keeps the trail lit, so you don't have to kill your momentum when the sun goes down.
Performance & Specs
Technical Specifications
Engine
125cc 4-Stroke Air-Cooled (Zongshen)Power
8.8 hp @ 7,500 rpmTop Speed
~56 mph (90 km/h)Top Range
~143 milesSeat Height
28.1″ (14/12) / 33.9″ (17/14)Net Weight
150 lbs (14/12) / 170 lbs (17/14)Max Load
265 lbsTransmission
4-Speed Manual, Wet Multi-Plate ClutchStart Type
Electric Start & Kick StartBrake Type
Hydraulic Disc (Front & Rear)Wheel Size
14″/12″ or 17″/14″Ground Clearance
11.8″ (14/12) / 13.2″ (17/14)Fuel Tank Capacity
~1.2 galFuel Type
Gasoline Only (87+ unleaded)Size Guide
Before You Buy — Read What Other FRP Owners Did
Real owner reviews, comparisons, and ownership support — built from 865+ verified buyer experiences.
865+ verified buyers
Read Real Owner Reviews
Real photos, assembly notes, long-term ownership, and honest complaints addressed.
Read reviews →After-sales supportFRP Ownership Promise
Parts, setup help, maintenance basics, and long-term ownership — exactly what to expect.
See ownership promise →Honest comparisonFRP vs Coleman — Which Wins?
Side-by-side specs, weight, brakes, control, and value. Picked by category, not forced.
Compare FRP vs Coleman →First-time buyerFirst Gas Mini Bike Buyer Guide
How to choose between 40cc and 99cc, safety features, and which FRP fits your situation.
Open buyer guide →After your orderFRP First Ride Kit
Official start guide for new owners — setup videos, safety, and what to do after unboxing.
Start with First Ride Kit →Family rider communityFRP Rider Community
Family ride events, Texas Rider Series recap, owner photos, and how to join future meets.
Join the community →Frequently Asked Questions
FX125-14 vs FX125-17 — which should I get?
Same 125cc bike in two wheel sizes. The -14 (14″/12″ wheels) sits lower with a 28.1″ seat for younger or shorter teens. The -17 (17″/14″) is the taller build with a 33.9″ seat for bigger teens and adults. Fit by rider height first.
What age is the FX125 for, and can a 12-year-old ride it?
Roughly ages 12–16 by height and skill — it’s the teen step-up, good for riders coming off a 110cc or the FX40. A 12-year-old can ride the -14 (lower 28.1″ seat) with supervision and full gear; true beginners do better starting smaller. A helmet and pads are required regardless of age.
What is the weight limit on the FX125 — how much weight can it hold?
The FX125 supports a 265 lb maximum rider load. The bike itself weighs about 150 lb (-14) or 170 lb (-17).
How tall is the FX125 — what’s the seat height?
Seat height is 28.1″ on the -14 and 33.9″ on the -17, with 11.8″ / 13.2″ of ground clearance.
How fast does the FX125 go?
About 56 mph (90 km/h) top speed, with roughly 143 miles of range on a ~1.2-gallon tank. Real-world speed varies with rider weight and terrain.
Is the 4-speed manual hard to ride?
It’s a 4-speed manual with a clutch — the same platform as the FX140. It’s a new skill coming off a no-clutch mini bike, but it’s what gives real trail control, and most riders get the basics in an afternoon.
What engine and power does the FX125 have?
A 125cc 4-stroke air-cooled (Zongshen) engine making 8.8 hp @ 7,500 rpm, with electric and kick start and hydraulic disc brakes front and rear.
Is the FX125 a pit bike or a dirt bike?
It’s the same machine — a 125cc off-road dirt bike, often called a 125 pit bike.
Is the FX125 street legal, and is it available in California?
It’s EPA off-road only and not street legal. It is not available in California (Prop 65).
