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Mini MX Big S 250cc Motocross 18"/21" - Orange

Réf : BIGS250-OR-26 See the description
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1,299.00€
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Pré-commande - 25/06/2026

Order it before 14:00 on Thursday and receive it between 6/29/26 and 6/30/26 with Schenker

Must-haves

Pourquoi vous allez l'adorer !  

  • ZONGSHEN 250cc 17 HP engine
  • Easy electric drive + pedal
  • New cartridge in stainless steel + racing scarico of large diameter +1hp
  • Slowly pump two pistons in front + single piston in the rear
  • New phone with additional reinforced parts (CRZ production)
  • New forcellone profile (manufactured by CRZ)
  • New forceps of 840 mm, large diameter 51/54 mm
  • New aluminum cover of 18" + 21" + Front/Rear Gripster
  • Shock absorber of 345 mm and 1000 free
  • Altezza saddle 92cm
  • Cerchi da 18"/21": ideal for this that is higher than that 1.70 m

Motocross Mini MX Big S 250cc 18"/21"

The new Big S MX 250cc of Mini MX, 2025 edition, is fitted with 18"/21" wheels;
The height of the seat is 92 cm with an hydraulic force of 840 mm in 51/54 mm adjustable and adjustable with 180 mm of travel, it has a shock absorber of 345 mm 1000 LBS.
The brake lever and the frieze are adjustable and equipped with a Pro Taper style lever.

Not approved for road traffic. Use the engine exclusively for recreational and sporty use.

The brake lever is fitted with a 240 mm brake disc, fitted with a double piston at the front and a single piston at the rear.

La sua cartuccia in acciaio inossidabile delizierà le tue orecchie!

It has a 250 cc, 4-stroke vertical motor with air conditioning, which comes from the series used on the ERZ model of the CRZ model, fitted with a new cartridge in stainless steel and with a new line that provides the motor with around 1 HP in more.

Thought by piloti esperti, non è adatto a tutti. Mini MX is an ideal motorcycle for cross-country and enduro riding.

The montaggio:

All our products are designed to be pre-assembled on the pallet by a specialist transporter.
The mountain must only end with several elements (handle, front wheel, perno dell'ammortizzatore (2 viti)…).

Once you have completed the installation, if the factory settings do not fully match your environment, you are invited to view our YouTube channel (Mini MX) and you will find a mechanical tutorial on the vehicle assembly video. Our laboratory remains fully available to support you throughout your stay at number 09.72.39.05.37 (free call), via e-mail [email protected] or online chat

Link to the YouTube channel: https://www.youtube.com/@MiniMX_


Important information: engine oil content is in storage; It is essential to change everything when you arrive at the middle.

Instructions for handling IPONE or Putoline:

Putoline Ipone
Semi-synthetic motor oil PUTOLINE 4T 10w40 DX4 1L Motor oil IPONE 10.4 4T 10W40 1L

Our motorcycles, quads, pocket bikes, etc., are not approved for use on public roads. Their use is strictly limited to...

Our motorcycles, quads, pocket bikes, etc., are not approved for use on public roads. Their use is strictly limited to closed, private tracks that comply with the provisions of Article R 331-21 of the French Sports Code.

Our vehicles (motorcycles, quads, buggies, etc.) intended for children should not be considered mere toys, but motorized machines belonging to the realm of motorsports, which involve inherent risks.

Minors under the age of 14 are not authorized to purchase, rent, or use non-approved vehicles, such as mini-motorcycles, children's quads, unapproved quads, motocross bikes, pocket bikes, pocket cross bikes, pit bikes, or dirt bikes. Their use is strictly limited to activities organized by approved sports associations, such as the FFM (French Motorcycling Federation) or UFOLEP (French Union of Secular Sports and Cultural Activities). It is important to note that the maximum speed of these vehicles on public roads is 24 km/h, which prohibits their use on public roads. Furthermore, minors under 16 years of age must be constantly supervised by an adult when using these machines.

To ensure your safety, it is essential to wear appropriate protective equipment, including an approved safety helmet, motocross-type safety glasses, gloves, elbow pads, knee pads, and a chest protector. It is also recommended to wear a long-sleeved top, long trousers, and high-top shoes that cover at least the ankle, ensuring that the laces are securely tied and away from the wheels, engine, and drive system.

You must register your machine with the Ministry of the Interior within 15 days of the purchase date. This process can be completed online at the following address: https://www.service-public.fr/particuliers/vosdroits/R20458. After submitting the declaration, you will receive an identification number to be engraved on the chassis and displayed on a visible plate. Please note that this plate can be removed during sporting activities.

We also encourage you to consult the charter outlining the rules to be followed for the use of your vehicle, available here: https://www.legifrance.gouv.fr/loda/id/JORFTEXT000020910287/, or to refer to the user manual, which you can download.

Delivery by SCHENKER: All our motocross bikes are shipped from our warehouses located in Fréjus, France (83). They are delivered...

Delivery by SCHENKER:

All our motocross bikes are shipped from our warehouses located in Fréjus, France (83). They are delivered 85% pre-assembled on a pallet by our specialized carrier, SCHENKER. The carrier will contact you by email or SMS to easily arrange a delivery date. You will then receive your tracking number to follow your delivery. SCHENKER is the leading French and European specialist delivery company with over 600 branches in Europe, including 165 in France. They guarantee an average delivery time of 48 to 72 hours.

Assembling your bike:

You will only need to finish assembling a few easy parts (such as the handlebars, front wheel, and rear shock absorber).

Once assembly is complete, if the factory settings are not perfectly suited to your riding conditions, we invite you to visit our YouTube channel (Mini MX) where you will find both mechanical tutorials and bike assembly videos.

We recommend that you read the owner's manual and check the general tightening of your motorcycle (spokes, axle, general screws), chain tension, tire pressure, and the routing of the brake/clutch cables.

We recommend that you perform your first oil change using IPONE or Putoline oils, as recommended and approved by the manufacturer. Using other oils not approved by the manufacturer could damage the engine or gearbox.

Our after-sales service, based in Fréjus (83), France, is available at 0972390537 (free call) to assist you if you have any questions.

Motocross assembly video:

Motorization

Kick Start Size 16mm (Big Size)
Engine Type Single cylinder 250cc ZONGSHEN 4 Stroke
Engine Capacity 250cc
Cooling Type Air Cooling
Bore 65.5x68.2mm
Carburator Carburetor PE 28
Clutch Manuel 5 Vitesses (1N2345) Multiplaque à bain d'huile
Start Up Kick and electric starter
Exaust INOX Racing Exhaust (BIG 250/300)
Fuel Unleaded 95 / 98
Clutch Type Manual
Exaust Size 42mm
Ignition CDI
Motorization Thermal (gasoline)
Speed KM/H 110 and more km/h
Number of CVs 17hp
Compression Ratio 9.0:1
Maximum torque 17/5500Nm/trs/min
Maximum Power 12Kw/7000trs/min
4 Stroke / 2 Stroke 4 Stroke
Displacement (ml) 223

Cycle Parts

Frame High Tensile Steel Frame with Central Tube
Plastic Kit new
Oil Engine Capacity 900 ml
Fuel Tank Capacity 7,5 Liters
Cycle Part CRZ MMX BIG 250/300cc

Dimensions/Size

Weight 103Kg
Seat Height 94 cm
Select by age 18 year and more, 17 year, 16 year, 15 year
Allowed weight 180Kg
Ground clearance 35 cm
Age group Adults
Select your size CM 1m65 and more (For Adults)

Suspension

Front Fork VSHOCK 830mm (51/54mm) Inverted Hydraulic Fork
Rear Shock Amortisseur 330mm
Clamp Aluminum - Ø51/54mm
Handle Bar 28,6mm

Braking system

Brake System Front and Rear Double Piston Front Brake, Single Piston Rear Brake (Hydraulic)
Disc Diameter new
Front Disc Diameter new
Center distance Fixation Disc 58mm

Tire

Wheel Axle 17mm
Rear and Front Wheel 2.15 x 18" Aluminum Rear Rim (15mm Axle)
Front Aluminum Rims 1.60 x 21" (15mm Axle)
Wheel Size 18"/21"
Rear tire 90/100-18"
Front tire 70/100-21"
Rims Acier Renforcé Avant 1.60-21", Arrière 1.85-18"

Chain and Drive

Transmission 5 Speeds (1N2345)
Chain Size 520
Sprocket Size 17mm
Chain length (links) 124 Links
Interaxis Fixation Crown 58mm
Number of teeth Sprocket 13 teeth
Number of teeth Crown 47 teeth
Wheelbase 1320mm

Electrical System

Battery Ampere/hour 12V5AH

Handlebars/Controls

HandleBar Tapered Aluminum 6061

Others

Color Orange
Warranty 1 month Engine (Running-in period) 3 months cycle part
Brand Mini MX
Vintage 2026
Seat KTM-L
Type of bike Motocross
Type of product Motocross
Type of use Non homologué pour la voie publique. Véhicule motorisé destiné exclusivement à un usage récréatif et sportif.
Shipping origin France
Delivery Label Motocross 1
Gripster factory-installed Arriere: oui, Avant: oui (Améliore la traction, la stabilité)
Valve clearance Admission: 0.07 / Échappement: 0.09
Front wheel bearing 6202RS
Rear wheel bearing 6203RS
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BIGS250-OR-26
2026-06-25

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