Starting from £5,450
Yamaha has been building championship winning 2-stroke motocross bikes for 50 years. Along the way we've won just about every title worth winning. The latest YZ85 comes with the same advanced race-bred technology that goes into the company's adult motocross machines and is ready to power you into the victorYZone.
Victory: Never given, always earned.
Many of today’s pro riders started their careers on the YZ85. And when you take a look at what this bike has to offer you can see why. Its high performance 85cc liquid-cooled 2-stroke engine is equipped with Yamaha’s race-bred YPVS that gives you holeshot-winning acceleration. And its adjustable suspension systems are built to master the toughest tracks.
The YZ85 also comes with a lightweight aluminium rear frame and aluminium swingarm, large diameter disc brakes and a high-efficiency air intake – just like the bigger YZ125. For maximum rider control there’s a flat seat, slim body and an ergonomic fuel tank. And with the updated Icon Blue colourway and new graphics completing the looks, the YZ85 is ready to power you to the next level.
Features
Slim bodywork
The YZ85 is equipped with dynamic slimline bodywork inspired by the YZ125. Uniform and narrow radiator shrouds give an aggressive and balanced look that underlines the YZ85's winning heritage.
Flat seat and ergonomic fuel tank
A flat seat and ergonomic fuel tank allow for easy front/rear weight shifting for optimum control. The seat design accommodates a single bolt seat fixing, making routine maintenance easy and quick.
Lightweight aluminium rear subframe
A detachable aluminium rear subframe helps to keep the YZ85's weight to a minimum and also contributes towards the bike's lightweight agility by centralising mass.
Aluminium swingarm
The YZ85 is equipped with an aluminium swingarm featuring a finely tuned rigidity balance that contributes towards chassis stability and helps to achieve high levels of rear wheel traction.
85cc liquid cooled 2-stroke engine with YPVS
The 85cc liquid cooled engine benefits from the Yamaha Power Valve System (YPVS) that boosts overall performance and contributes towards the bike's easy-to-use torque. Running with a high compression ratio – and equipped with a close ratio 6-speed transmission – the YZ85 delivers outstanding acceleration with race winning power.
High-efficiency air intake system
The air intake system incorporates side panels with large rear facing vents that are specifically designed to give a straight airflow into the engine's airbox for high levels of intake efficiency and improved engine performance.
Fully adjustable 36mm KYB upside down front forks
Featuring specially machined one-piece tapered outer tubes to match the rigidity balance of the frame – and equipped with 36mm inner tubes – the upside down KYB front forks provide optimised damping settings. Combined with the fully adjustable low friction cartridge design, the YZ85 has the most sophisticated front fork design ever used on a youth YZ motocross bike.
Link-type Monocross rear suspension
Like the front forks, the Monocross rear suspension is directly descended from the advanced technology used on Yamaha's factory race bikes. The aluminium swingarm activates the progressive link-type Monocross suspension to give 287 mm of rear wheel travel, that can handle everything from washboard sections through to hard landings.
Self-cleaning wave discs
For powerful and controllable braking the YZ85 features self-cleaning wave type discs – with a 220mm front and 190mm rear. And for linear rear braking and plenty of feel there's a one-piece rear master cylinder with a built-in sub-reservoir.
YZ 85
Offer Ends 31/05/2026
Yamaha - Free Health Check

Your Yamaha looks after you — now let us return the favour.
We’re offering a FREE motorcycle or scooter health check at participating authorised Yamaha dealers across the UK. There’s no catch, no obligation, and no pressure. Just expert eyes giving your bike a once-over so you can ride with confidence.
What’s included?
A trained Yamaha technician will check the key components of your bike, helping to spot potential issues early and make sure everything’s working as it should.
Who's it for?
Any Yamaha model
Any age
Any mileage
If it’s a Yamaha, it’s welcome.
Why book one?
Peace of mind before your next ride
Expert inspection by Yamaha-trained technicians
Completely free, with no obligation to carry out further work. If anything does need attention, you’ll be informed clearly — the choice is always yours.
How to get yours?
Simply fill in the form here, then contact {site_title} to book a convenient date and time. Note: dates are subject to availability.
Terms & Conditions
Dealer Participation and Conditions
The Vehicle Health Check is provided subject to the individual terms and conditions of the participating authorised Yamaha dealer.
Participating dealers may decline to undertake inspection, servicing, or repair work on vehicles that exceed a specified age, mileage, or condition threshold.
Customers are strongly advised to contact their chosen dealer in advance to confirm eligibility and acceptance before applying for a free health check voucher.
Bookings
The free health check is valid until 31st December 2026.
Once customers have entered their details on the online form, customers need to book their health check direct with participating Authorised Yamaha Dealers.
Bookings days and times are subject to availability and will be confirmed by the dealer with the customer at the point of booking.
Customers will need to present their free health check email (received once the online form is complete) to their participating Authorised Yamaha Dealer on the day of the health check.
Electronic Health Check Compatibility
Motorcycles manufactured prior to 2015 may not be compatible with, or eligible for, an electronic health check due to non-compatibility with the Yamaha diagnostic systems.
Proof of Ownership
Customers may be required to present a valid V5 registration document, or equivalent proof of ownership, together with their health check voucher to the selected authorised Yamaha dealer at the time of the vehicle health check, as evidence that they are the registered keeper.
Failure to Provide Documentation
Failure to present the required documentation may result in the authorised dealer refusing to carry out the complimentary vehicle health check.
General
Neither Yamaha Motor nor the authorised dealer shall be liable for any pre-existing damage, defects or faults, or normal wear and tear.
Customers authorise the authorised dealer to carry out the agreed inspection or repair work. Any recommended additional work identified will be communicated and authorised by the customer prior to completion.
Motorcycles not collected within one working day of notification that work has been completed may be subject to reasonable storage charge.
| Engine type | Liquid-cooled, Single cylinder, Reed valve with YPVS, 2-stroke |
| Displacement | 85cc |
| Bore x stroke | 47.5 × 47.8 mm |
| Compression ratio | 8,2 - 9,6 : 1 |
| Lubrication system | Premix |
| Clutch type | Wet, Multiple Disc |
| Ignition system | CDI |
| Starter system | Kick |
| Transmission system | Constant Mesh, 6-speed |
| Final transmission | Chain |
| Fuel system | Keihin PWK28/1 |
| Frame | Semi double cradle |
| Caster angle | 26° 00′ |
| Trail | 99 mm |
| Front suspension system | Telescopic fork |
| Rear suspension system | Swingarm, (Link type suspension) |
| Front travel | 275 mm |
| Rear travel | 287 mm |
| Front brake | Hydraulic Single Disc, Ø220 mm |
| Rear brake | Hydraulic Single Disc, Ø190 mm |
| Front tyre | 70/100-19 42M Tube type |
| Rear tyre | 90/100-16 52M Tube type |
| Overall length | 1895 mm |
| Overall width | 760 mm |
| Overall height | 1175 mm |
| Seat height | 885 mm |
| Wheel base | 1285 mm |
| Minimum ground clearance | 360 mm |
| Wet weight (including full oil and fuel tank) | 75 kg |
| Fuel tank capacity | 5.0 L |
| Oil tank capacity | 0.5 L |
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