Dirt track 250cc IMR FX250 17/17

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lei11,340.08

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Experience pure adrenaline on the oval with the Dirt track 250cc IMR FX250 17/17, featuring a Zongshen 232cc engine delivering 18 hp of linear power for controlled cornering. Its tubular steel chassis, adjustable suspension, and 240mm dual disc brakes ensure precise handling and optimal safety. Designed for demanding riders, it combines premium design, lightweight build (105 kg), and robustness to make every session an unforgettable experience. With XtremRS, enjoy dedicated customer service, a 2-year parts warranty, and maintenance advice to keep your dirt track in top condition.

IMR

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Product details

Dirt track 250cc: a Zongshen 232cc engine built for sliding

At the heart of this machine, the Zongshen 232cc single-cylinder engine delivers 18 hp (13.24 kW) with exemplary linearity, ideal for controlling the drift angle on the oval. Its simple and robust design guarantees foolproof reliability, even under heavy demand, while the torque available at low RPMs allows for powerful acceleration at the exit of every turn. To preserve this mechanics, we recommend regular oil changes with high-quality 10W40 oil and frequent cleaning of the air filter, especially in dusty conditions; the XtremRS team remains at your disposal to guide you on the maintenance intervals adapted to your riding pace.

Dirt track 250cc: electric starter for instant startup

The IMR FX250 comes standard with an electric starter, a major asset in both racing and training: a simple press of the button is enough to wake up the 232cc, even after a long stop or a fall. This convenience avoids the fatigue of the kickstarter and allows you to get back into the action immediately, a detail that makes the difference during successive heats. Remember to check the battery charge before each session and keep it on a maintainer during the off-season to guarantee a strong spark every time; our XtremRS technical service can test your charging system during your visit to the workshop.

Dirt track 250cc: tubular steel chassis, rigor and precision

The tubular steel chassis, combined with a steel swingarm, offers the torsional rigidity necessary to handle firm pressure on hard tracks, while maintaining a measured flexibility that forgives terrain imperfections. With a wheelbase of 1320 mm and a seat height of 890 mm, the riding position promotes forward weight transfer, the key to dirt track riding. The entire package weighs 105 kg, a power-to-weight ratio favorable to agility. We advise you to check the tightness of the wheel and swingarm axles after the first few hours of riding, and then at every service, to maintain this healthy and predictable behavior.

Dirt track 250cc: adjustable suspensions to master every track

The front end is handled by an adjustable 830 mm hydraulic inverted fork, with preload, compression, and rebound settings that allow you to adapt the tuning to the hardness of the circuit and your style. At the rear, the 460 mm shock absorber ensures traction and stability coming out of corners. A well-tuned fork "copies" the terrain without bottoming out, while a balanced rear shock avoids parasitic pumping. We recommend an annual purge of the fork oil (5W or 7W viscosity depending on your weight) and a shock absorber service by a specialist to replace the seals and nitrogen; XtremRS will direct you to the right suppliers for these critical operations.

Dirt track 250cc: biting 240 mm double disc braking

The front brake with a double-piston caliper gripping a 240 mm disc offers progressive and dosable deceleration power, essential for braking late at the entry of turns without locking the wheel. The rear, equipped with a single-piston caliper and an identical 240 mm disc, ensures stability and helps position the bike. High-quality sintered pads and fresh DOT 4 brake fluid (to be purged every season) guarantee a consistent feel. Check the lining thickness and the surface condition of the discs before every riding weekend; our XtremRS advice sheets detail the break-in procedure for optimal bite from the first laps on the track.

Dirt track 250cc: 17-inch aluminum wheels, grip guaranteed

The 17-inch aluminum rims at both ends, the standard size for dirt track, reduce unsprung mass and promote steering responsiveness. They accommodate slick or grooved tires depending on the nature of the surface, offering a maximum contact area to transmit the 18 hp to the ground. Tire pressure is your primary setting: too high, and the bike slides; too low, and it deforms and overheats. Adapt it to the track temperature and check it cold before each heat. XtremRS offers a selection of competition tires adapted to this 17/17 fitment to fully exploit the potential of your IMR FX250, reminding you that this non-road legal machine is reserved for use on private circuits.

1. Who is this IMR FX 250 Dirt Track really for?

With its seat height of 890 mm, weight of 105 kg, and 232 cc engine developing 18 hp, this 250cc dirt track is clearly aimed at adult riders or tall teenagers who already have experience in off-road or oval riding. This is not a machine for beginners or children: the ergonomics (1320 mm wheelbase) and power require an appropriate stature and size to be mastered safely on the track.

2. What are the engine characteristics of this 250cc dirt track?

It features an air-cooled Zongshen 232 cc single-cylinder engine, delivering 18 hp (13.24 kW). The big practical advantage is its electric start, which avoids the tedious kickstarting between sessions. The supplier description does not provide the maximum torque or peak power RPM; these values can be found in the Zongshen engine workshop manual.

3. How is the chassis specific to Dirt Track riding?

The tubular steel chassis and steel swingarm provide the lateral rigidity sought for leaning into corners on the oval. The geometry is assertive: 17-inch aluminum wheels (Dirt Track / Supermotard standard), a 1320 mm wheelbase, and a seat height of 890 mm. The adjustable 830 mm hydraulic inverted fork and the 460 mm rear shock allow for the adjustment of preload and hydraulics according to the track grip.

4. Is the braking system sized for competition?

Yes, the braking is consistent with track use: double piston and 240 mm disc at the front, single piston and 240 mm disc at the rear. This configuration ensures progressive bite and good endurance over the short series typical of dirt track, without the bulk of oversized supermotard discs.

5. Can we ride on the road with this IMR FX 250?

No. This 250cc dirt track is reserved for use on private circuits, training tracks, or closed grounds. It does not have the legal equipment (lighting, mirrors, tire homologation, etc.) to circulate on public roads.

6. What are the essential dimensions for preparing transport or garage space?

Unladen weight: 105 kg (easy to load into a trailer or pick-up with two people). Wheelbase: 1320 mm. Seat height: 890 mm. Width not provided, but the standard dirt track handlebar remains within classic dimensions for a standard motorcycle trailer.

7. What maintenance is required for the Zongshen 232 cc engine?

It is a robust and widespread 4-stroke single-cylinder: engine oil change (10W40 quality or according to the manual), air filter cleaning/replacement, valve clearance check, spark plug, and timing chain according to the engine manufacturer's intervals. The description does not give precise intervals; please refer to the provided Zongshen manual. Access to the filter and spark plug is facilitated by the open tubular chassis.

8. How is vehicle delivery handled at XtremRS?

Delivery is free (vehicle threshold > 500 € reached) within 5 to 8 working days by appointment. The carrier will contact you to set the time slot; provide means to unload the 105 kg (ramp, straps, two people). Payment is secured via 3D Secure before shipping.

9. What XtremRS warranty applies to this IMR FX 250?

2-year parts warranty (excluding consumables: tires, pads, chains, sprockets, filters, oils, battery, bulbs... and excluding safety equipment such as helmets/gloves). Labor is not included in the standard manufacturer warranty. In case of an issue, contact XtremRS after-sales service with photos/videos for remote diagnosis.

10. Are spare parts (plastics, levers, spokes, chain kits) available?

Yes, XtremRS ensures parts support for the models distributed. Since the Zongshen 232 cc engine is a very common base, engine parts (gaskets, piston, clutch, starter) are standard and easy to source. For specific IMR FX chassis/bodywork parts, place an order via after-sales service indicating the frame serial number.

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 (circuit, private land).
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 type vehicle by a minor over 14 years old is carried out under the responsibility of an adult. Only one user may ride the vehicle.
Purchases on the XtremRS site must be made by an adult.
Warning: Dirt bike / Pit bike / Quad / Pocket quad 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 and after each use.

General

Brand IMR
Reference IMP-7506

Features

Engine Thermique 4 Temps
Front Wheel Size 17"
Rear Wheel Size 17"
Engine displacement 250cc
Power 18 CV
Brake Type Freins à Disques Hydraulique
Transmission Chaine
Net Weight 105
Seat height 890
Wheelbase 1320

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