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Nibbi ET300 2026: First Serious Chinese 2-Stroke Enduro Bike?

  • Writer: The Old Man and the Dirt Bike #52
    The Old Man and the Dirt Bike #52
  • 3 days ago
  • 4 min read

Nibbi Racing is best known for carburetors and racing parts, not complete motorcycles. That’s exactly why the all-new Nibbi ET300 2026 is interesting. This is Nibbi’s step into the competitive 300cc 2-stroke enduro / hard enduro segment—a space dominated by KTM, Husqvarna, and GasGas.


With a modern chassis, balance-shaft 2-stroke engine, and Nibbi’s own components throughout, the ET300 looks like a serious attempt rather than a branding exercise. But how good does it look on paper? Let’s break it down.

Who Is Behind the Nibbi ET300?


Nibbi Racing was founded in 1985 by Italian brothers Antonio and Francesco Nibbi. Over the decades, Nibbi has become a globally recognized performance brand, especially renowned for its racing carburetors, intake systems, and ignition components.

Nibbi operates globally:

  • USA (California): Brand operations & marketing

  • Germany (Baden-Württemberg): R&D and testing

  • China (Canton): Manufacturing & supply chain

Nibbi parts are used in high-level racing events like MXGP, Erzberg, Romaniacs, and Dakar, and the ET300 is a natural next step—building a complete bike around their own technology.

Nibbi 300cc 2-stroke engine
Nibbi NB300R 300cc 2-stroke engine

Engine & Performance

At the heart of the ET300 is the NB300R engine:

  • Single-cylinder

  • 300cc class 2-stroke

  • Liquid-cooled

  • Balance shafts (big plus for vibration reduction)

  • Fast power delivery with a smoother feel than older 2-strokes

The balance shaft is especially important for longer enduro rides and older riders—it reduces fatigue and improves traction control on technical terrain.

Nibbi PWN40 carburetor
Nibbi Racing PWN40 carburetor

Carburetor: Nibbi PWN40

No surprise here—Nibbi uses their own PWN40 carburetor:

  • Easy adjustment for temperature, humidity, and altitude

  • Single control for idle speed and enricher

  • Designed for consistent fueling in changing conditions

For riders used to Nibbi carbs, this is a strong confidence point.

Exhaust System


Tailored specifically for the ET300

  • Improved ground clearance for hard enduro

  • Aluminum mounting bracket

  • Focus on:

    • Smooth power delivery

    • Reduced weight

    • Controlled noise levels

Practical and well thought out, especially for rocky terrain.

Nibbi ET300 steel frame
Chrome molybdenum steel frame

Chassis & Design

Frame:

  • Refined chrome molybdenum steel frame

  • Improved anti-squat behavior

  • Optimized wall thickness in high-stress areas

  • Designed flex characteristics for:

    • Better feedback

    • Energy absorption

    • Straight-line stability

The frame is finished in black powder coating and comes with a robust skid plate as standard.

Nibbi ET300 aluminum subframe
Aluminum subframe

Aluminum Subframe

  • Lightweight aluminum construction

  • Shorter and more compact

  • Designed to bend rather than crack in a crash

  • Fully integrated electronics (no extra brackets)

This is very much in line with modern European enduro design.

Nibbi ET300 swingarm
In-house designed swingarm

Swingarm

  • One-piece hollow die-cast aluminum swingarm

  • 280g lighter than previous designs

  • New 25mm rear axle

  • Redesigned chain guide and slider for durability

Again, this is not budget thinking. This is modern engineering.

Suspension

Front Suspension

Fully adjustable enduro fork

  • Adjustable compression and rebound damping

  • Designed for:

    • Heavy landings

    • Technical riding

    • Maintaining forward momentum

Rear Shock

  • High-speed & low-speed compression, and rebound adjustment

  • Focus on stability and traction

  • Designed to reduce rider fatigue on rough terrain

  • PDS style

Wheels, Tires & Brakes

Both the rims and tires seem to be branded Nibbi.

  • Front: 80/100-21

  • Rear: 140/80-18

  • Disc brakes front and rear

A proper hard-enduro-friendly tire size choice.

Controls & Components

  • 7075 aluminum handlebars

  • Bar pad included

  • Advanced dual-clamp triple clamp system

    • Reduced fork distortion

    • Better fork response

    • Increased resistance to twisting

Nibbi also uses their own high-voltage ignition coil for consistent spark and combustion.

Nibbi ET300 air filter
Airbox and air filter

Airbox & Filtration

  • Tool-less side panel access

  • Carefully designed intake ducts

  • Nibbi foam air filter

  • Strong protection against water and dirt

This is a small detail—but a very important one for enduro riders.

Key Dimensions (Published)

  • Seat height: ~910 mm

  • Front suspension/travel: 910/295 mm

  • Rear suspension/travel: 395/310 mm

  • Weight: 109kg dry (KTM 300 EXC 2026 104.4kg without fuel)

Tall, but normal for a modern 300 enduro.

Price & Availability

The Nibbi ET300 2026 is listed on Tradewheel at:

  • $4,599 – $5,599 USD (FOB)

FOB pricing means shipping, so import tax and local fees are extra.

For comparison:

  • 2025 KTM 300 EXC: ~$11,599 MSRP

Even at the high end, the ET300 is significantly cheaper.

Potential Drawbacks

⚠️ Things to keep in mind:

  • New model, limited real-world rider feedback (so far)

  • Dealer network unclear outside China

  • Final spec may vary by market

  • Long-term parts availability is still unknown


Final Verdict: Is the Nibbi ET300 Worth Watching?

✅ Pros

  • Serious engineering, not just branding

  • Balance-shaft 2-stroke engine

  • Modern chassis & swingarm

  • High-quality Nibbi components

  • Competitive price

❌ Cons

  • Unknown dealer support

  • No long-term reliability data yet

  • FOB pricing adds uncertainty. Ask for DDP (Delivery Duty Paid) shipping.

Would You Ride the Nibbi ET300?

Nibbi didn’t rush into this. The ET300 looks like a carefully designed, modern 300cc enduro bike, not a budget copy. If Nibbi can support this bike properly outside China, it could become a very interesting alternative in the hard enduro space.

I’ll be watching this one closely.

What do you think? Would you trust Nibbi with a full bike—not just parts? Let me know in the comments 👇

FAQs – Nibbi ET300 2026


Q: Is the Nibbi ET300 street legal? A: It appears designed as an off-road bike. Street legality depends on local regulations and final market versions.

Q: Is this engine KTM-based? A: No direct claim of KTM cloning. This appears to be a Nibbi-developed 2-stroke with balance shafts, drawing inspiration from KTM/Husqvarna.

Q: Is it suitable for beginners? A: Like all 300cc 2-strokes, it’s best for experienced riders.

Q: Where can I buy it? A: Currently listed through trade platforms like Tradewheel. Local distributors are not yet confirmed.

Q: When is it available? A: It's on the market with riders already. #chinesedirtbike #affordabledirtbike


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