Motocross IMR MX Pro 140cc 17/14 2026

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Dominate every track with the IMR MX Pro 140cc 2026 Motocross, a machine built for pure adrenaline. Thanks to its powerful YX engine and high-precision V2 chassis, enjoy an intense riding experience and absolute terrain control. Its inverted fork and high-performance hydraulic braking combine safety and responsiveness for memorable sessions. By choosing XtremRS, you benefit from a bike rigorously prepared by our technicians, a 2-year warranty, and the expertise of our enthusiasts to ride with complete confidence.

IMR

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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.

1. Who is the Motocross MX Pro 140cc IMR MX PRO 2K26 intended for?

With a seat height of 860 mm, an empty weight of 75 kg, and a 140cc engine developing 14 hp, this machine fits the "pit bike / mini cross" format with 17/14 inch wheels. It is morphologically suitable for tall teenagers or light to medium-sized adults looking for a fun bike for dirt. Its geometry (1290 mm wheelbase, 1130 mm handlebar height) offers an active riding position, typical of motocross, and is unsuitable for young children.

2. What engine powers the IMR MX PRO 2K26 and how is the power managed?

The unit is an air-cooled YX 140cc 4-stroke, paired with a 4-speed manual gearbox. The announced power is 14 hp (10.43 kW), delivered without electronic aids: the clutch and foot shifter require active management by the rider. Starting is exclusively via kick, without an electric starter, which reinforces the "pure" and lightweight nature of the ensemble.

3. Is the chassis up to the standard of serious motocross use?

Yes, the technical sheet shows components usually reserved for higher ranges: V2 tubular steel frame, 550 mm steel swingarm, inverted fork at the front, and a 325 mm rear shock absorber adjustable in 4 positions. Braking is handled by full hydraulics (220 mm disc with double-piston caliper at the front, 190 mm single-piston at the rear). The 17" front / 14" rear aluminum rims complete a coherent set for the track.

4. What are the precise measurements to check ergonomics before purchase?

The official dimensions are: seat height 860 mm, handlebar height 1130 mm, wheelbase 1290 mm. The 5.5 L tank ensures correct autonomy for leisure sessions. The featherweight of 75 kg (empty) facilitates handling in the paddock and restarting after a fall.

5. Is this Motocross MX Pro 140cc road legal?

No, the description explicitly states: "Non-registrable vehicle". It is designed for private off-road use (circuits, motocross tracks, leisure enduro) and does not have the legal equipment (lighting, mirrors, certificate of conformity) to circulate on public roads.

6. What are the colors and finishes of the 2K26 model?

The plastics adopt the 2026 black and yellow design branded IMR. The 28 mm diameter aluminum handlebar and anodized aluminum rims provide a refined finish, visible in the visuals, which distinguishes this model from entry-level versions often equipped with steel.

7. How is the delivery of such a voluminous vehicle handled at XtremRS?

Delivery is made by appointment within 5 to 8 working days. Shipping costs are free for vehicle purchases over €500 (threshold widely reached here). The carrier will contact you to agree on a time slot; please provide truck access and assistance to unload the 75 kg package.

8. What warranty applies and what are its limits?

XtremRS applies a 2-year warranty excluding consumables (tires, pads, chain, filter kit, spark plug...) and rider safety equipment (helmet, gloves, protections). The chassis, YX engine, and suspension/braking components are covered under compliant use (off-road, respected maintenance).

9. Is payment secure and can it be spread out?

Payment is made by credit card via 3D Secure, the most widespread security standard.

10. Are there specific maintenance operations to plan upon receipt?

Given the configuration (YX 140cc engine, 4-speed gearbox, kick-start, air-cooling), we recommend: checking the engine oil level, checking the chain tension, tightening the spokes on aluminum rims, bleeding the hydraulic brakes if transport created air, and adjusting the rear preload according to the rider's weight (4 positions available).

The use of Pitbikes / Dirt bikes / Quads is strictly forbidden on public roads. The use of a Dirt bike, Pit bike, or Quad type vehicle must be done on terrain adapted to the practice (circuits, private land).
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

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