Motocross CRZ ERZ - 300cc Liquid 4 Valve - Pink

Réf : ERZ300L-PK See the description
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2,399.00€
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Pré-commande - 10/06/2026

Pourquoi vous allez l'adorer !  

  • ZONGSHEN 300cc 4-stroke vertical engine, 27.5hp, liquid-cooled, 4 valves
  • + 1.5hp additional power thanks to the POWERBOMB stainless steel exhaust system
  • KEIHIN PWK 34 carburetor
  • 5-speed gearbox - Reinforced wet clutch
  • Seat height 94cm
  • Competition frame - Double tubular steel reinforcement
  • Standard engine guard
  • 18"/21" aluminum wheels + front/rear Gripsters
  • KKE 910mm hydraulic fork, adjustable compression/rebound
  • KKE 480mm adjustable shock absorber with linkage
  • CRZ, a French brand created in 2006
  • Recreational/Sporting - Safe
  • Not approved for road use. Motorized vehicle intended exclusively for recreational use.

CRZ ERZ 300cc Liquid-Cooled Motocross Bike - 18"/21"

CRZ expands its lineup once again with its new 300cc liquid-cooled, 4-valve enduro model! For those who always want more! More power, more thrills!

This new CRZ ERZ enduro bike features the ZONGSHEN 300cc 4-valve liquid-cooled engine! A CRZ exclusive. Not street legal. Motorized vehicle intended exclusively for recreational and sporting use.

ZONGSHEN Vertical 4-stroke 300cc 4-valve engine with liquid cooling:

Exclusive to CRZ, this 4-valve engine delivers 27.5 hp and 23 Nm of torque as standard. CRZ comes standard with a full stainless steel exhaust and Powerbomb system, adding 1.5 hp, for a total of 29 hp for the ERZ 300L. This unparalleled power will surprise you with both its torque and its top-end performance!

For the first time, CRZ offers a liquid-cooled engine that develops 27.5 hp with 23 Nm of torque and a maximum power of 20 kW at 8500 rpm (Remember: 1 kW = approximately 1.36 hp, so 20 kW x 1.36 hp = 27.5 hp)!

PWK34 Carburetor: CRZ equips the engine with a PWK34 carburetor and an electric starter for maximum simplicity. Of course, it also has a kickstarter for those who prefer a more traditional approach!

The PWK34 carburetor is specifically designed to optimize the high performance of the 4-stroke engine. CRZ installs the original PWK34 to ensure a quick response and better fuel atomization. Its improved float chamber ensures stable fuel delivery, while its precise settings allow you to adapt the engine's operation to the specific needs of the 300cc 4-valve engine.

5-Speed ​​Multi-Disc Wet Transmission and Clutch:

The power of your engine is efficiently transmitted via a 5-speed multi-disc wet transmission, ensuring smooth and responsive driving. This transmission system uses a 13-tooth sprocket, a 520 pitch chain, and a 49-tooth rear sprocket, secured with 6 hub bolts for increased robustness. Enjoy a reliable and high-performance riding experience, built to last.

High-Strength Steel Competition Frame with Double Central Tube and Engine Guard:

Balanced and reliable to handle the power of the ZONGSHEN 300cc 4-Valve engine and its 28 hp. CRZ equips you with the best on the market; this competition frame guarantees unparalleled reliability! Have no doubt about the durability of the chassis of the ERZ 300L series.

The entire frame is made of high-performance tubular steel, the swingarm is steel, and the handlebars are profiled aluminum.

Stainless Steel Exhaust + PowerBomb (+1.5 hp): Exceptional sound thanks to its full stainless steel POWERBOMB exhaust system, a clear differentiator from the BIG S models. This configuration enhances engine performance and adds approximately 1.5 hp.

KKE 910mm Inverted Hydraulic Fork with Compression/Rebound Adjustment: The front hydraulic fork is adjustable for compression and rebound damping. It has a diameter of 53mm/58.5mm (large diameter) and is 940mm long with 265mm of travel. This is, of course, an inverted hydraulic suspension. The fork features compression and rebound damping adjustment.

This suspension offers true versatility for both enduro and motocross use.

KKE 480mm Adjustable Rear Shock with Remote Reservoir on Linkage: CRZ offers you a truly high-quality chassis. The 300L is the most accomplished motocross bike in its class, regardless of the competition. The KKE shock with remote reservoir is 480mm with 120mm of travel. The remote reservoir is adjustable via a dial. This guarantees that damping performance will remain absolutely consistent on all types of terrain.

Furthermore, this improves damping response to provide exceptional control of the motorcycle's movements.

18" Rear and 21" Front Aluminum Wheels:

Consistency throughout the chassis: the aluminum wheels are equipped with rim locks on both the front and rear and fitted with 80/100-21" and 110/100-18" tires.

Dual Piston and Single Rear Brakes on 240mm Discs: Braking is provided by a hydraulic system, with dual pistons at the front and a single piston at the rear, on 240mm discs. The braking performance of this CRZ system will surprise you, ensuring consistent and precise braking on all types of terrain.

520 Chain Drive: Equipped with a thick 520 chain for a factory-configured enduro drivetrain, it features a 6-point sprocket.

94cm Seat Height: As high as a Honda CRF 250, this seat height is recommended for riders 1.75m tall and highly recommended for riders over 1.80m.

Advantages of linkage mounting:

A linkage-mounted shock absorber increases the progression between wheel movement and shock absorber travel, improving ride comfort and suspension absorption. This explains why the shock absorber is longer than a conventionally mounted one.

Maintenance Kits:

PUTOLINE

- 1x PUTOLINE 4T 10W40 Semi-Synthetic DX4 Engine Oil 1L

- 1x PUTOLINE 500ml Carburetor Cleaner Spray

- 1x PUTOLINE 500ml Drytec Chain Lubricant Spray

IPONE

- 1x IPONE 10.4 4T 10W40 Engine Oil 1L

- 1x IPONE X-TREM 500ml Off-Road Chain Grease

All our vehicles are delivered pre-assembled on a pallet by a specialized carrier. You will only need to complete the assembly of a few simple parts (such as the handlebars, front wheel, etc.). Once assembly is complete, if the factory settings are not entirely suitable for your riding environment, we invite you to visit our YouTube channel (Mini MX) where you will find both mechanical tutorials and vehicle assembly videos. For all vehicle orders (excluding Pocket models), delivery will be handled by a specialized carrier. The carrier will contact you by email or SMS to arrange a delivery date. Once the date is chosen, delivery will take place on the selected day between 8:00 AM and 6:00 PM.

We are available for any questions at +33 9 72 39 05 37.

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

Important information: The oil in the engine is storage oil; it is essential to change it upon arrival of the vehicle. We recommend IPONE or Putoline oils.

All spare parts available for the 300cc Liquid model can be found on the parts list, in the dedicated 300cc category, or in the general categories on the MiniMX website.

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.

Motorization

Kick Start Size 16mm (Big Size)
Engine Type ZONGSHEN 300cc Single Cylinder, 4 Stroke, 4 Valves, Liquid Cooling
Engine Capacity 300cc
Cooling Type Liquid Cooling
Carburator PWK34, Boite à Air 300 L
Clutch Manuel 5 Vitesses (1N2345) Multiplaque à bain d'huile
Start Up Kick and electric starter
Exaust Ligne INOX avec Powerbomb et Cartouche 4PERF Aluminium
Fuel Unleaded 95 / 98
Filter Size Ø51mm
Clutch Type Manual
Exaust Size 35mm
Ignition ZONGSHEN 300cc Liquid Multi-Coil Stator
Digital CDI
Motorization Thermal (gasoline)
Speed KM/H 110 and more km/h
Number of CVs 27,2hp
Compression Ratio 11.1:1
Maximum torque 23/7000 N.m/trs/min
Maximum Power 20kw / 8500trs/min
Horizontal/Vertical Motor Vertical
4 Stroke / 2 Stroke 4 Stroke
Displacement (ml) 279
Spark CR8EIX

Cycle Parts

Frame High Tensile Steel Frame with Central Tube
Plastic Kit KTM-XL
Oil Engine Capacity 900 ml
Fuel Tank Capacity 6,5 Liters
Fuel Tank new
Swing Arm High Strength Steel Swing Arm 590mm
Cycle Part CRZ ERZ 300 Liquid

Dimensions/Size

Weight new
Seat Height 94 cm
Select by age 18 year and more, 17 year, 16 year
Allowed weight 120Kg
Ground clearance 31cm
Age group Adults
Select your size CM 1m65 and more (For Adults)
185cm and more
Weight 118Kg
Packing Size 1715x445x860mm
Dimensions 2190x820x1220 mm

Suspension

Front Fork KKE 910mm Adjustable Inverted Hydraulic Fork (Compression Rebound) 265mm Travel
Rear Shock KKE Adjustable Shock Absorber 480mm (Compression/Rebound) with Offset Cylinder (120mm Travel)
Clamp Aluminum - Ø53/58.5mm
Handle Bar 28,6mm
Adjustable Compression/Rebound Yes

Braking system

Brake System Front and Rear Front: Hydraulic Double Piston, Disc: 240mm / Rear: Hydraulic Single Piston, Disc: 240mm
Disc Diameter new
Front Disc Diameter new
Center distance Fixation Disc 6-point disc

Tire

Rear and Front Wheel 18′/21′ aluminum blast hubs
Rear Aluminum Rim 2.15 x18" (CRZ ERZ 300L)
Front Aluminum Rim 1.60 x 21" (CRZ ERZ 300L)
Wheel Size 18"/21"
Rear tire 80/100-18"
Front tire 80/100-21"
Rims 7116 Aluminum Rims, Gravity Cast Hub (Front: 1.6x21 Rear: 2.15x18)

Chain and Drive

Transmission 5 Speeds (1N2345)
Chain Size 520
Interaxis Fixation Crown 6-point crown - 15mm
Number of teeth Sprocket 13 teeth
Number of teeth Crown 49 teeth
Wheelbase 1480mm
Transmission Chain chain 520 13t / 49 teeth

Electrical System

Battery Ampere/hour new
Battery 12V6.5AH LEAD ACID (MAINTENANCE FREE)

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 new, KTM-XL
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 3
Quantity of oil per fork tube 400ml
Gripster factory-installed Arriere: oui, Avant: oui (Améliore la traction, la stabilité)
Valve clearance Admission: 0.07 / Échappement: 0.09
Front wheel bearing 61904RS
Rear wheel bearing 61905RS
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ERZ300L-PK
2026-06-10

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