Your cart is empty
return to shopFRP Gas Mini Bikes
Gas Mini Bikes
for Adults, Teens & Kids
40cc to a Predator 212 build · up to 220 lb · 28 mph
Most adults and teens should start with the 99cc GMB100: $379.99, 24 mph, and a 220 lb capacity. Choose GMB100P for rough trails and hydraulic brakes; choose the 40cc MB40 for a child age 6+ learning at 18 mph. Complete bikes ship 85% assembled from the USA.
100
The one most adults buy
GMB100
24 mph. 220 lb. Pull and ride.
Choose the GMB100 for most adults and teens riding driveways, backyards, and smoother trails. The 99cc four-stroke reaches 24 mph, carries up to 220 lb, uses an automatic clutch and pull start, and runs about 27 miles per tank. It ships 85% assembled and is usually ready within an hour. Move up to GMB100P only if you need front suspension and hydraulic brakes.
99cc 4-Stroke · EPA24 mphHolds 220 lbAuto Clutch · Pull-StartRear Disc Brake~27 mi / Tank85% Pre-AssembledPredator 212-Ready
Shop GMB100
From$379.99
8 colors · 3 packages
100P
2026 Upgrade · 2.0 Heavy-Duty Rims
GMB100P
Suspension, hydraulics, dirt — now on 2.0 heavy-duty rims.
Built for rough trails, bumps, and downhill braking. It keeps the GMB100's 99cc engine, 28 mph speed, and 220 lb capacity, then adds front suspension, all-terrain tires, and hydraulic disc brakes front and rear — now rolling on upgraded 2.0 heavy-duty rims for a stronger, more planted stance on uneven ground.
99cc 4-Stroke28 mphFront SuspensionHydraulic Disc · F&R2.0 Heavy-Duty RimsOff-Road TiresHolds 220 lbPredator 212-Ready
Shop GMB100P
$639.99
Free Shipping Limited Time
4 colors · 2.0 Heavy-Duty Rims
212+
Build your own · Drag roller
RMB Rebel
Straight-line drag build — 90% rolling chassis.
Choose the RMB Rebel if you’re building a straight-line drag mini bike. It arrives as a 90% complete rolling chassis — frame, forks, wheels, brakes, and ergonomics already assembled — with a narrow-front / wide-rear drag stance on a stretched wheelbase, a wide 11x7.10-5 semi-slick rear, and a dual-piston hydraulic rear brake included. Runs the full drag-engine lineup: Predator 212, Honda GX200, Titan TX200, Briggs Animal, and larger. Engine and clutch not included; off-road and track use only.
90% Rolling ChassisDrag GeometryStretched Wheelbase11x7.10-5 Semi-SlickDual-Piston HydraulicFits Predator 212 & UpWheelie-Bar ReadyEngine Not Included
Shop the RMB Rebel
From$579.99
212
Build your own
GMB100 Frame
Predator 212 goes here.
Choose the GMB100 Frame only if you want to build your own 99cc–212cc mini bike. A Predator 212 fits directly with no frame welding, and the frame supports common GTC and clone-engine parts. This is a bare frame, not a complete running bike; choose a complete GMB100 if you want to assemble less and ride sooner.
Fits 99cc–212ccPredator 212 Direct-FitHigh-Strength SteelNo WeldingDual Foot PegsGTC/Clone Compatible
Shop the Frame
From$319.99
7 finishes incl. raw steel
40
Where it starts
MB40
A kid's first throttle — 18 mph.
Choose the MB40 for a child age 6+ learning to ride with adult supervision. Its 40cc four-stroke is limited to 18 mph, carries up to 165 lb, and includes a rear disc brake and emergency kill switch. It needs no oil mixing, ships 85% assembled, and can be ready in about 20 minutes. For an adult or larger teen, choose the 99cc GMB100 instead.
40cc 4-Stroke · EPA18 mphHolds 165 lbRear Disc + Kill SwitchKnobby TiresReady in 20 MinAges 6+
Shop MB40
From$239.99
3 colors · Basic / Max
100U
The one that works
GMB100U
Cargo rack. Tow bar. 24 mph.
Choose the GMB100U for property work, campsites, and light hauling. Its 99cc engine is tuned for torque rather than speed, reaching 24 mph with a 185 lb capacity, front cargo rack, and optional tow bar. Choose the regular GMB100 for a lower price and higher top speed, or GMB100P for rough-trail suspension and braking.
99cc 4-Stroke24 mphFront Cargo RackOptional Tow BarHolds 185 lbTorque-Tuned3 Configurations
Shop GMB100U
From$399.99
4 colors · Cargo / Tow / Both
Real riders, real FRP
See it ridden.
Real FRP owners and riders — not studio shoots. Backyard laps, first rides, trail runs and 212 builds. Tap any clip to see how the bikes actually ride.
Build it. Upgrade it. Keep it running.
The FRP mini bike platform.
Builder's Bundle
The frame-plus-essentials starting point for a custom 99cc–212cc mini bike build.
Start a build →Hydraulic Brake Kit
Upgrade a mechanical disc to hydraulic stopping power — the GMB100P brakes, on their own.
Shop brakes →Suspension & Upgrade Kits
Front suspension forks, stretch tabs, big-bore and performance upgrades for the GMB100 platform.
Shop upgrades →All Mini Bike Parts
Chains, clutches, sprockets, tires, lights and more — every part for the GMB100 platform.
Shop parts →Side by side
Pick the right mini bike.
Swipe to compare →
| GMB100Most popular | GMB100POff-road | GMB100UWork | MB40Kids | |
|---|---|---|---|---|
|
 |
|
|
|
| Best for | Adults, everyday | Trails & off-road | Hauling & work | Kids, first rides |
| Rider | Teens & adults | Teens & adults | Teens & adults | Kids 6+ |
| Engine | 99cc 4-stroke | 99cc 4-stroke | 99cc 4-stroke | 40cc 4-stroke |
| Top speed | 24 mph | 28 mph | 24 mph | 18 mph |
| Holds | 220 lb | 220 lb | 185 lb | 165 lb |
| Suspension | — | Front | — | — |
| Brakes | Rear disc | Hydraulic F&R | Rear disc | Rear disc |
| Predator 212 | Yes | Yes | No | — |
| Assembly | 85% done | 85% done | 85% done | 85% done |
| Price | From $379.99 | From $499.99 | From $399.99 | From $239.99 |
Building your own instead? Start with the GMB100 frame — Predator 212 direct-fit, 99cc–212cc.
Questions, answered
Mini bikes, explained.
How fast does a gas mini bike go?
The mini bike top speed by engine size varies by model. The 99cc GMB100 reaches 24 mph, while the GMB100P reaches 28 mph; the utility GMB100U is tuned for torque at 24 mph; and the 40cc kids' MB40 is geared to a controlled 18 mph. Drop a Predator 212 into the GMB100 frame and you go well beyond stock. Real top speed varies with rider weight and terrain.
Can an adult ride a mini bike? What's the weight limit?
Yes — use the adult mini bike size and weight guide to check rider fit. The 99cc GMB100 and GMB100P are rated to carry adults up to 220 lb, and the GMB100U to 185 lb. If you're heavier than that or want more power, start with the GMB100 frame and build up to a 212cc for a bike sized to a bigger adult.
Are gas mini bikes street legal? Where can I ride one?
No — every FRP mini bike is EPA-certified for off-road use only, not street legal or registered for public roads. Check where to legally ride a mini bike, including permitted private property, trails, campgrounds, and off-road parks. (FRP mini bikes are not sold in California.)
How old do you have to be to ride a mini bike?
The mini bike age and rider-size guide explains why size and confidence matter as much as age. The 40cc MB40 is built for kids ages 6 and up at a controlled 18 mph with adult supervision. The 99cc GMB100, GMB100P and GMB100U are sized and powered for teens and adults.
Do you need a license for a mini bike?
No license is required to ride an FRP mini bike, because they're for off-road private-property use, not public roads. Always check your local rules before riding somewhere new.
Can I put a Predator 212 engine on an FRP mini bike?
Yes — the GMB100 Predator 212 upgrade roadmap explains the build path. The GMB100, GMB100P and the standalone GMB100 frame accept a Predator 212cc engine as a direct fit with no welding on the frame. The utility GMB100U is the exception — its vintage frame isn't optimized for the 212 swap, so start with the GMB100 or the frame if a build is the goal.
Do FRP mini bikes come assembled?
The complete bikes arrive 85% pre-assembled — usually just the handlebars, front fork, front wheel and fender, finished in under an hour with basic tools. The 40cc MB40 is riding in about 20 minutes. The GMB100 frame is the exception, sold bare for custom builds.
Gas or electric mini bike — which is better?
Gas means you refuel in seconds and keep riding instead of waiting on a charge — the GMB100 gets about 27 miles per tank, the GMB100P about 30. That's the FRP focus: real gas mini bikes built to last as long as the riding day does.
What's the difference between a mini bike and a dirt bike?
A gas mini bike has a low frame and small wheels, made for backyards, driveways and flat trails — easy to handle and easy to start on. The mini bike vs dirt bike comparison explains why dirt bikes use long-travel suspension and bigger wheels for jumps and rough trails. If you've outgrown a mini bike, see the FRP dirt bike collection.
Trusted by 865+ verified buyers
Why riders pick FRP.
Holds a real adult
The question buyers ask most is whether a mini bike can actually carry them. The 99cc GMB100 and GMB100P are rated to 220 lb; the GMB100 reaches 24 mph and the GMB100P reaches 28 mph. Both are built for grown teens and adults and rated 4.8/5 by 400+ riders.
Gas means no waiting
No battery, no charge time. Splash in gas and keep going — about 27–30 miles per tank, with the torque and runtime an electric mini bike can't match on a long afternoon.
A platform, not a dead end
Start on a 40cc, move up to a 99cc, then bolt a Predator 212 into the frame when you want to build. FRP mini bikes are made to grow with the rider — and take the upgrades.
Grow with the rider
Find your gas mini bike
Start where the rider is today. The next step will be waiting when they're ready for it.
