Top 5 best 125cc motocross bikes in 2026
Table of contents
Summary
The best 125cc motocross bikes in our selection are the KTM 125 SX, the Gasgas MC 125, the Honda CRF125F, the Apollo Motors RXF MX 125, and the Yamaha TT-R 125.
- 2026 Apollo Motors RXF MX 125: starting at $1,699.99, the most affordable choice to get started.
- 2026 Honda CRF125F: starting at $4,898, offered in two sizes suited to youth and riders of different heights.
- 2026 Yamaha TT-R 125: starting at $5,499, an approachable model with a progressive power delivery.
- 2027 Gasgas MC 125: starting at $10,884, a two-stroke motocross bike intended for more experienced riders.
- 2027 KTM 125 SX: starting at $11,284, the sportiest model in this selection.
For a beginner, the Apollo RXF MX 125, the Honda CRF125F, and the Yamaha TT-R 125 are the most accessible choices. The KTM 125 SX and the Gasgas MC 125 are better suited to an advanced rider seeking competition-level performance.
What is the difference between a 125cc, 250cc, and 450cc motocross bike?
First, "cc" stands for cubic centimetre and represents engine displacement. For example, a 125cc motocross bike is equipped with a smaller engine than a 250cc or 450cc motocross bike.
Without getting into the details, we can say that 125cc motocross bikes are generally less powerful than the best 250cc motocross models, which are themselves less powerful than 450cc motocross bikes.
In general, 125cc models are ideal for younger riders and beginners.
Our picks for the best 125cc motocross bikes
KTM 125 SX
Undoubtedly one of the best 125cc motocross bikes for 2026, the KTM 125 SX is equipped with a robust two-stroke engine and is designed for adults.
Among other things, it includes a map selection system to better manage the engine and match riding conditions.
As a result, it adapts well to the terrain, whether you are tackling muddy trails or deep, heavy sand.
Finally, a 6-speed gearbox helps ensure smooth and steady acceleration.
Here is a summary of the spec sheet for the 2027 KTM 125 SX, one of the best full-size motocross bikes:
| Specifications | 2027 KTM 125 SX |
|---|---|
| Starting price | $11,284 |
| Engine | Two-stroke 124.8cc engine |
| Gearbox | 6-speed |
| Dry weight | 203 lb. |
| Wheelbase | 1,480 mm |
| Seat height | 958 mm |
| Ground clearance | 359 mm |
An unmatched inventory of motocross bikes awaits in Quebec. Ride away today with the vehicle that suits you.
Gasgas MC 125
Another model that ranks among the best 125 motocross bikes for adults, the Gasgas MC 125 also uses a 6-speed gearbox and has dimensions comparable to the KTM 125 SX.
It uses BRAKTEC hydraulic brakes and a hydraulic clutch to deliver consistent performance and give you precise control over the riding experience.
To further ease riding, a Vitesco Technologies engine management system uses a tilt sensor and supplies continuous data to the hour meter.
Here is an overview of the Gasgas MC 125, one of the most reliable 125cc motocross bikes:
| Specifications | 2027 Gasgas MC 125 |
|---|---|
| Starting price | $10,884 |
| Engine | Two-stroke 124.8cc engine |
| Gearbox | 6-speed |
| Dry weight | 204 lb. |
| Wheelbase | 1,493 mm |
| Seat height | 956 mm |
| Ground clearance | 354 mm |
Honda CRF125F
One of the best 125 motocross bikes for beginners, the Honda CRF125F is offered in two distinct sizes to make riding easier for young teens as well as taller riders.
It uses a keyed ignition system that helps parents supervise riding habits.
Discover one of the best 125 motocross bikes for teenagers:
| Specifications | 2026 CRF125F |
|---|---|
| Starting price | $4,898 |
| Engine | Four-stroke 125cc engine |
| Gearbox | 4-speed with manual clutch |
| Dry weight | 194 to 198 lb. (depending on the trim) |
| Wheelbase | 1,220 to 1,255 mm (depending on the trim) |
| Seat height | 738 to 785 mm (depending on the trim) |
| Ground clearance | 210 to 260 mm (depending on the trim) |
Apollo Motors RXF MX 125
The lightest among the best 125 motocross bikes, the Apollo Motors RXF MX 125 is a simple and affordable model for beginners.
It is a model that redefines what the price of a motocross bike can look like in 2026.
Here is a summary of the features of one of the best 125cc motocross bikes for value:
| Specifications | 2026 RXF MX 125 |
|---|---|
| Starting price | $1,699.99 |
| Engine | Four-stroke 124cc engine |
| Gearbox | 4-speed with manual clutch |
| Dry weight | 176 lb. |
| Wheelbase | 1,220 mm |
| Seat height | 840 mm |
| Ground clearance | 200 mm |
Yamaha TT-R 125
One of the best 125cc motocross bikes, designed for those who want to get into this type of riding, the Yamaha TT-R 125 is equipped with a Mikuni VM20 carburetor that ensures smooth and efficient operation.
This model is one of the best 125 motocross bikes for those looking for an accessible machine, while approaching more sporty motocross bikes such as the KTM 125 SX and the Gasgas MC 125.
Here is the Yamaha TT-R 125:
| Specifications | Yamaha TT-R 125 |
|---|---|
| Starting price | $5,499 |
| Engine | Four-stroke 124cc engine |
| Gearbox | 5-speed constant-mesh |
| Wet weight | 198 lb. |
| Wheelbase | 1,270 mm |
| Seat height | 805 mm |
| Ground clearance | 295 mm |
Summary table of the best 125cc motocross bikes
To sum up, here are the starting prices and engines of the best two-stroke and four-stroke 125cc motocross bikes:
| 125cc motocross bikes | Starting price* | Engines and transmission | Notable equipment |
|---|---|---|---|
| 2027 KTM 125 SX | $11,284 | Two-stroke, 6-speed | Electric start Map selection |
| 2027 Gasgas MC 125 | $10,884 | Two-stroke, 6-speed | Hydraulic brakes and clutch Vitesco Technologies engine management |
| 2026 Honda CRF125F | $4,898 | Four-stroke, 4-speed | Electric start Keyed ignition |
| 2026 Apollo Motors RXF MX 125 | $1,699 | Four-stroke, 4-speed | N/A |
| 2026 Yamaha TT-R 125 | $5,499 | Four-stroke, 5-speed | Electric start Mikuni VM20 carburetor |
*Manufacturer's suggested retail price. Selling prices are taken from manufacturers' websites (July 2026).
To find the 125cc motocross bike for you or your child, or if you are instead looking for one of the best 450cc motocross bikes, stop by Motos Illimitées today, your motorcycle experts in Terrebonne on the North Shore, near Montreal.
A professional team will guide you with clarity and confidence. Take advantage of our full range of financing solutions, including 2nd and 3rd chance credit. The dream vehicle is within your reach.
FAQ
What is the best 125cc motocross bike?
The best 125cc motocross bikes are the KTM 125 SX, the Gasgas MC 125, the Honda CRF125F, the Apollo Motors RXF MX 125, and the Yamaha TT-R 125.
Is a 125cc motocross bike suitable for a beginner?
Yes, 125cc motocross bikes are ideal for beginners.
Is a 125cc motocross bike designed for adults?
Yes, several 125cc motocross models are designed for adults.
What is the difference between a 125cc and a 250cc motocross bike?
A 250cc motocross bike uses an engine with a 250cc displacement. It is therefore generally more powerful than a 125cc motocross bike.
At what age can you ride a 125cc motocross bike?
In Quebec, you must be at least 16 years old to operate a motocross bike. On private land there is no minimum age, but experts recommend waiting until at least age 12.
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