Motocross Mini MX BIG R 300cc - 18"/21"

Réf : BIGR300-RD-26 See the description
2,249.00€ 800.00€
1,449.00€
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Pré-commande - 19/06/2026

Buy it now and receive it between 6/23/26 and 6/24/26 with Schenker

Pourquoi vous allez l'adorer !  

  • Vertical 4T 300cc ZONGSHEN 22hp Engine
  • + 1 additional hp thanks to the large diameter RACING exhaust
  • 5-Speed Gearbox Reinforced Oil-Bath Clutch
  • Seat Height 92cm
  • New reinforced double hoop frame (CRZ Manufacturing)
  • New streamlined swingarm (CRZ Manufacturing)
  • Aluminum Rims 18" + 21" + Front/Rear Gripster
  • Inverted Hydraulic Fork 840mm - Fork Crown 51/54mm
  • Shock Absorber 450mm - 90mm Travel
  • Recreational/Sport Leisure – Safe
  • Not approved for public roads. Motorized vehicle intended exclusively for recreational use.

Motocross Mini MX Big R 300cc 4T 18"/21"

The new Mini MX Big R 300cc air-cooled 22hp will charm you with its large 18"/21" black aluminum wheels equipped with Gripster tires at the front and rear. (Vehicle not approved for road and public way use)

Its seat height is 92cm with an 840mm hydraulic fork in 51/54mm inverted and adjustable with 180 mm travel, its shock absorber has 90mm travel.

Vertical 4-stroke 300cc ZONGSHEN 22hp engine:

Its 4-stroke 300cc vertical air-cooled engine, its stainless steel exhaust. Intended for experienced riders, it is not for just anyone. Mini MX presents an ideal bike for cross and enduro riding.

The 300cc air engine develops 16KW at 8500 rpm for 22Nm (Reminder: 1KW = approximately 1.36hp so 16KW x 1.36hp = 22hp)

Its chassis: Its 850mm hydraulic fork in 45/48mm will allow you to adjust compression and rebound according to your use, preferences, and weight.

Stainless steel exhaust:

An exceptional sound thanks to its full STAINLESS steel line, this configuration helps engine performance.

Double piston Hydraulic Braking: The 230mm disc clamped by a double piston ensuring efficient braking.

5-Speed Oil Bath Gearbox:

Its gearbox is equipped with 5 Speeds 1N2345 in a multi-plate oil bath, a feature that guarantees fast and precise transmission.

520 Chain Transmission:

Equipped with a thick 520 chain for a transmission originally configured for enduro, it is fitted with a 6-point mounting sprocket.

Not approved for public roads. Motorized vehicle intended exclusively for recreational and sporting use.


 

Assembly:

All our vehicles are delivered pre-assembled on a pallet by a specialized carrier.
You will only need to finish assembling a few easy parts (Handlebar, front wheel, shock absorber axle (2 screws)…).

Once the assembly is complete, if the factory settings are not fully adapted to your environment, we invite you to visit our YouTube channel (Mini MX) where you will find both mechanical tutorials and vehicle assembly videos. Our Workshop remains at your full disposal to support you throughout your experience at 09.72.39.05.37 (Free Call), by email [email protected], or via online chat

YouTube channel link : https://www.youtube.com/@MiniMX_


Important information: The oil contained in the engine is storage oil, it is imperative to change it upon arrival of the vehicle.

We recommend the IPONE or Putoline maintenance Packs:

Putoline Ipone
PUTOLINE 4T 10w40 Semi-Synthetic DX4 1L Engine Oil IPONE 10.4 4T 10W40 1L Engine Oil
PUTOLINE 500 ml Carburetor Cleaner Spray X-TREM IPONE Chain Grease 500ml Off Road
PUTOLINE 500 ml Drytec Chain Lubricant Spray /

 

Motorization

Kick Start Size 16mm (Big Size)
Engine Type ZONGSHEN 300cc Single Cylinder, 4 Stroke, 2 Valves, Air Cooled
Engine Capacity 300cc
Cooling Type Air Cooling
Carburator PZ30
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
Motorization Thermal (gasoline)
Speed KM/H 110 and more km/h
Number of CVs 22hp
Compression Ratio 9.0:1
Maximum torque 22Nm/6500 trs/min
Maximum Power 16Kw/8500 trs/min
Horizontal/Vertical Motor Vertical
4 Stroke / 2 Stroke 4 Stroke
Displacement (ml) 271.3

Cycle Parts

Frame High Tensile Steel Frame with Central Tube
Plastic Kit new
Fuel Tank Capacity 7,5 Liters
Swing Arm High Strength Steel Swing Arm 560mm
Cycle Part CRZ MMX BIG 250/300cc

Dimensions/Size

Weight 112 Kg
Seat Height 94 cm
Select by age 16 year, 17 year, 18 year and more
Ground clearance 35 cm
Age group Adults
Select your size CM 1m65 and more (For Adults)

Suspension

Front Fork KKE 830mm Adjustable Inverted Hydraulic Fork, 180mm Travel (51/53mm)
VSHOCK 830mm (51/54mm) Inverted Hydraulic Fork
Rear Shock VSHOCK 450mm shock absorber, 90mm travel
Clamp Aluminium - Ø45/48mm
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 15mm
Rear and Front Wheel 18′/21′ aluminum blast hubs
Wheel Size 18"/21"
Rear tire 90/100-18"
Front tire 70/100-21"

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 49 teeth
Wheelbase 1320mm

Electrical System

Battery Ampere/hour 12V5AH

Handlebars/Controls

HandleBar Tapered Aluminum 6061

Others

Color Red
Warranty 1 month Engine (Running-in period) 3 months cycle part
Brand CRZ
Vintage 2026
Seat KTM-L
Type of bike 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
Want us a question about: Motocross Mini MX BIG R 300cc - 18"/21" Ask a Question
BIGR300-RD-26
2026-06-19

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