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Product details

155cc Motocross IMR MX 155: A reliable and responsive 4-stroke engine

The heart of this 155cc motocross bike beats with an air and oil-cooled 4-stroke single-cylinder engine, developing 16 hp with torque available at low RPMs. The absence of an electric starter (kick start only) reduces overall weight and guarantees mechanical simplicity, which is highly appreciated for routine maintenance. At XtremRS, we know that the longevity of a 4-stroke engine depends on regular oil changes and a clean air filter; our 110-125-150cc engine maintenance guides accompany you step by step to preserve these performances.

155cc Motocross

155cc Motocross Performance: Tubular chassis and 17/14-inch geometry

The 155cc motocross IMR MX 155 is built on a house-designed tubular chassis and a rigid steel swingarm, designed to withstand the demands of off-road riding. With a wheelbase of 1230 mm and a seat height of 820 mm, it targets teenage or adult riders of average build looking for a playful machine on 17" front and 14" rear wheels. This geometry ensures reassuring stability in a straight line and precise agility in corners, far from childish mini-motos.

Adjustable shocks on the 155cc Motocross: Tailored riding

On the suspension front, the 155cc motocross does not skimp on adjustability: both the front fork and the rear shock are adjustable. You can thus stiffen or soften the hydraulics according to your weight, your skill level, or the nature of the terrain (sand, hard ground, mud). A major advantage for progressing calmly; do not hesitate to consult our tips sheets on suspension setup to exploit the full potential of your IMR.

155cc Motocross
155cc Motocross

Effective braking on the 155cc Motocross: 220 and 190 mm discs

The braking system of this 155cc motocross relies on a 220 mm front disc and a 190 mm rear disc, a combination sized to stop the 16 hp with authority. The progressive bite inspires confidence from the first sessions, a crucial point for rider safety. Remember to check the brake pad thickness and brake fluid level before every ride, a habit we remind you of in our safety articles for responsible practice.

1. What type of rider is this IMR MX 17/14 155cc Motocross intended for?
With a seat height of 820 mm, a wheelbase of 1230 mm, and a 155cc 4-stroke engine developing 16 HP, this machine corresponds to a teen/adult body type. The kick start and 4-speed manual transmission require some experience. It is a true high-performance pit bike for the track, not a children's model.
2. What are the engine specifications of this 155cc model?
155cc 4-stroke single-cylinder engine, air and oil-cooled, 16 HP (11.75 kW), kick start only, 4-speed manual gearbox. Oil supply is separate (no pre-mix); the description does not specify the exact crankcase capacity—please refer to the manufacturer's manual for the recommended volume and viscosity.
3. How does the running gear behave on the track?
The IMR tubular chassis and IMR steel swingarm ensure rigidity and precision. The damping is fully adjustable: adjustable cartridge front fork and adjustable rear mono-shock. 17" front / 14" rear steel wheels with 220 mm and 190 mm disc brakes offer stability at high speed and strong braking power. The 1230 mm wheelbase favors maneuverability in tight corners.
4. Is the product delivered ready to ride?
Plan for a complete set-up: levels, brake bleeding, adjustment according to your weight, general tightening. The provided manual will guide these operations.
5. What are the delivery times and fees at XtremRS?
At XtremRS, vehicles benefit from free shipping on purchases over €500, with shipping within 5 to 8 business days by appointment. The carrier will contact you to set the time slot.
6. What warranty applies to this IMR MX 155cc?
2-year XtremRS warranty, excluding consumables (tires, pads, chain, sprocket, belt, spark plug, filters, oils) and safety equipment (helmet, gloves, protective gear). The warranty covers manufacturing defects on the chassis, engine, and original components.
7. What payment methods are accepted for this vehicle?
100% secure payment via 3D Secure (bank card, Visa, Mastercard). Validation is done via strong authentication (SMS code or banking application). No additional fees are applied to the displayed price.
8. What maintenance should be planned for the first rides?
First check after 1-2 hours: bolt tightening (chassis, swingarm, wheel axles, calipers), chain tension, oil level, brake bleeding if the lever is soft, suspension sag adjustment according to your weight. The description does not give a precise oil change interval—follow the manufacturer's manual (5-10h for the first oil change on this type of 4-stroke).
9. Are spare parts and accessories available?
XtremRS stocks common parts for the IMR range (chain kits, pads, filters, levers, plastics, 17/14 rims). For specific engine components (piston, rings, crankshaft, clutch), contact the parts department with the frame serial number—compatibility depends on the exact model year.

Warning

The use of Pitbikes / Dirt bikes / Quads is strictly forbidden on public roads. The use of a Dirt bike, Pit bike, or Quad vehicle must be done on terrain suitable for the practice (circuit, private lands).
The user must wear appropriate protective equipment and be under the supervision of an adult.
The purchase of a Dirt bike, Pit bike, or Quad vehicle by a minor over 14 years old is made under the responsibility of an adult. Only one user should ride the vehicle.
Purchases on the XtremRS website must be made by a person of legal age.
Warning: Dirt bike / Pit bike / Quad / Pocket quad type vehicles are motorized vehicles and not toys.
It is recommended to have assembly and maintenance performed by a professional. We recommend users to check the condition of the vehicle before / after each use.

General

  • Brand IMR
  • Reference IMP-8463

Features

  • Engine Thermique 4 Temps
  • Front Wheel Size 17"
  • Rear Wheel Size 14"
  • Engine displacement 155cc
  • Power 16.3
  • Brake Type Freins à Disques Hydraulique
  • Cooling Par Air
  • Clutch Manuel
  • Transmission Chaine
  • Seat height 820
  • Wheelbase 1230
  • Gearbox 4 Rapports
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