Motocross IMR MX Pro 140cc 17/14 2026
100% secure payment















Which payment method should I choose?
The payment methods shown above are offered subject to eligibility. Depending on your country, order amount, or payment provider rules, some options may not automatically appear at checkout.
Installment or deferred payment solutions (Klarna, Scalapay, Satispay, etc.) apply their own approval rules and transaction limits.
For higher-value orders, we recommend:
- Credit card (Visa, Mastercard, CB) — instant and reliable payment
- Bank transfer — ideal for larger amounts
- PayPal — buyer protection and generally higher limits
Product details
The YX 140cc engine powering the Motocross MX Pro 140cc
At the heart of this machine beats an air-cooled YX 140cc 4-stroke single-cylinder engine, developing 14 hp (10.43 kW) for generous torque at low RPMs. Its 4-speed manual gearbox offers precise spacing, ideal for learning RPM management or having fun on technical tracks, while the kick-start ensures foolproof mechanical reliability without depending on a battery. This unit, renowned for its robustness, requires regular maintenance: oil changes, air filter cleaning, and valve clearance checks ensure its longevity. To go further in the maintenance of your mechanics, consult our expert guide on maintaining 110-125cc engines, perfectly applicable to this displacement.

V2 Chassis and riding ergonomics of the Motocross MX Pro 140cc
The V2 model tubular steel chassis forms the backbone of this dirt bike: rigid where it needs to be, it absorbs off-road stresses without deforming. With a wheelbase of 1,290 mm and a 550 mm steel swingarm, stability in both straight lines and curves is remarkable. The 860 mm seat height and the 28 mm aluminum handlebar at 1,130 mm create an ergonomics tailored for tall teenagers or medium-sized adults, offering a liberating range of motion. The 17-inch aluminum front and 14-inch rear wheels are fitted with cross tires offering an excellent compromise between traction and precision. To verify that this geometry matches your morphology, our comprehensive guide for choosing a teen motocross bike remains the reference.
Double-piston hydraulic braking on the Motocross MX Pro 140cc
Active safety relies on a high-performance 100% hydraulic system: at the front, a 220 mm disc gripped by a double-piston caliper ensures powerful and progressive bite, while at the rear, a 190 mm disc with a single-piston caliper guarantees stability during heavy braking. This front/rear dosage provides total control, even on slippery terrain, and inspires confidence from the first rotations. Regular checks of pad thickness, DOT 4 fluid levels, and the absence of leaks in the hoses are imperative. Find all the best safety and equipment practices for teen/adult riders in our dedicated file.


High-performance inverted fork of the Motocross MX Pro 140cc
The adoption of an inverted fork transforms steering behavior: gain in lateral rigidity, reduction of unsprung masses, and better reading of the terrain. The large-diameter tubes handle heavy braking without diving excessively, preserving the caster geometry and steering precision. This is a major asset for tackling whoops or negotiating deep ruts. Regarding maintenance, fork oil changes (every 20 to 30 riding hours depending on intensity) and the replacement of oil seals maintain smooth and leak-proof operation. Our complete maintenance tips for 110cc motocross bikes detail this operation step-by-step.
4-position adjustable rear shock absorber of the Motocross MX Pro 140cc
The 325 mm central shock absorber, adjustable in preload across 4 positions, allows the rear end stiffness to be adapted to the rider's weight (up to 75 kg dry for the machine) and the type of terrain: soft position for sand or roots, firmer for hard ground or jumping. This progressivity protects the rider's back and rear traction when exiting a corner. Periodically check for oil leaks on the rod and the proper functioning of the linkage. At XtremRS, every bike is checked and prepared by our technicians before shipping, with guaranteed parts support for peace of mind.

Warning
The user must wear appropriate protective equipment and be under adult supervision.
The purchase of a Dirt bike, Pit bike, or Quad type vehicle by a minor over 14 years old is carried out under the responsibility of an adult. Only one user must ride the vehicle.
Purchases on the XtremRS site must be made by an adult.
Warning: Dirt bike / Pit bike / Quad / Pocket quad type vehicles are motorized machines and not toys.
It is recommended to have assembly and maintenance performed by a professional. We recommend users check the condition of the vehicle before / after each use.
General
- Brand IMR
- Reference IMP-7081
Features
- Engine Thermique 4 Temps
- Front Wheel Size 17"
- Rear Wheel Size 14"
- Engine displacement 140cc
- Power 13.9 CV
- Brake Type Freins à Disques Hydraulique
- Cooling Par Air
- Clutch Manuel
- Net Weight 75
- Seat height 860
- Wheelbase 1290
- Starter Type Electrique
- Gearbox 4 Rapports