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2025 KTM 450 SMR Overview
For 2025, KTM offers the 450 SMR as a super motard motorcycle with 449.9 cc on tap. The 2025 KTM 450 SMR is built around a Four stroke, single cylinder, SOHC, 4 valve engine, a compression ratio of 12.75:1. Out on the road, the 450 SMR delivers 47 kW of peak power. In everyday use, the 2025 450 SMR tips the scales at 108.8 kg, carries a 7.2-litre fuel tank, offers a seat height of 898 mm and spans a 1472 mm wheelbase. That's roughly 101.7 kg lighter than the average super motard motorcycle in our database. Every technical detail, from suspension travel to tyre sizes, is covered in the full 2025 KTM 450 SMR spec sheet below.
2025 450 SMR - Pros & Cons
Strengths
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Capable power output: 47 kW of peak output puts the 450 SMR in good company among its rivals.
Considerations
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Tall seat height: A 898 mm seat puts flat-footing out of reach for a lot of riders - sit on it in person before committing.
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Modest fuel capacity: A 7.2-litre tank keeps things light but means budgeting for more frequent fuel stops on any longer ride.
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Chain final drive upkeep: A chain drivetrain is the most common setup in its class, but it's also the one that demands the most regular hands-on maintenance.
Wear Points & Servicing Notes
Cooling system servicing
With Liquid cooled, thermal management is largely automatic, but the coolant has a service life of its own - replace it on the manufacturer's interval to protect the water passages and thermostat.
Brake disc and pad wear
Single 310 mm disc with Brembo hydraulics up front provides the primary stopping power; inspect disc thickness and pad wear at each tyre change to catch scoring before it becomes a rotor replacement.
Suspension condition on used examples
Suspension duties are handled by 48mm Fully adjustable WP Xact inverted fork up front and Linkage-assisted WP Xact mono shock at the rear. Weeping fork seals aren't a dealbreaker on a used bike, but they're a fair basis for negotiating price.
Final drive maintenance
Chain final drive on the 450 SMR means routine lubing and tension checks are part of ownership - skip them and sprocket wear accelerates noticeably.
Frame & chassis check
The Central double-cradle-type 25CrMo4 steel chassis holds up well with normal use; on a used bike it's still worth checking the head-stock and swingarm pivot area for impact damage or corrosion.
Low-speed handling
The 450 SMR's 108.8 kg kerb weight makes low-speed control noticeably less effort than on a heavier machine.
450 SMR - Buying & Maintenance Guide
What to check before buying
A pre-purchase check on the 2025 KTM 450 SMR should cover the same ground every time: service history, chain and sprocket condition, and any oil seepage around the casings. Start it from cold if you can - a well-kept 450 SMR settles to a smooth idle within seconds.
Oil and filter changes
Oil changes are the cheapest insurance you can buy for a 450 SMR's engine - keep to the manufacturer's interval rather than stretching it. Use the viscosity grade the manual specifies, not whatever's on sale.
Carburetor upkeep
A 450 SMR that's sat unused is almost always a carb-cleaning job before it runs right again - float bowls and pilot jets first, since they clog before anything else.
2025 KTM 450 SMR - Frequently Asked Questions
What engine does the 2025 KTM 450 SMR have?
The 2025 KTM 450 SMR uses a Four stroke, single cylinder, SOHC, 4 valve engine with 449.9 cc of displacement. It is liquid cooled.
How much does the 2025 KTM 450 SMR weigh?
The 2025 KTM 450 SMR weighs 108.8 kg. This is the manufacturer's dry figure.
How much power does the 2025 KTM 450 SMR make?
The 2025 KTM 450 SMR produces 47 kW of power.
What is the fuel tank capacity of the 2025 KTM 450 SMR?
The 2025 KTM 450 SMR has a 7.2-litre fuel tank. At around 5-6 litres per 100 km, that is roughly 120-144 km between stops.
Is the 2025 KTM 450 SMR suitable for shorter riders?
The 2025 KTM 450 SMR has a seat height of 898 mm. This is towards the tall end of the spectrum and will require most riders under 175 cm to tiptoe at stops.
What brakes does the 2025 KTM 450 SMR have?
The 2025 KTM 450 SMR uses Single 310 mm disc with Brembo hydraulics at the front and Single 220mm disc with Brembo hydraulics at the rear.
What tyre sizes does the 2025 KTM 450 SMR use?
The 2025 KTM 450 SMR runs 125/75 x 16.5 front and 165/65 x 17 rear tyres. A good selection of sport, touring and all-weather rubber is available in these sizes.
What gearbox does the 2025 KTM 450 SMR have?
The 2025 KTM 450 SMR is fitted with a 5 Speed transmission.
KTM 450 SMR Spec Evolution
The KTM 450 SMR was produced across 3 model years (2021-2025). The table below highlights the key specifications that changed across the production run - useful whether you are comparing years or tracking down a specific variant.
| Specification |
2021 |
2022 |
2025 |
| Max Power |
- |
63 hp |
47 kW / 63 hp |
| Dry Weight |
102 kg / 224.8 lbs |
102 kg / 224.8 lbs |
108.8 kg / 239.7 lbs |
| Seat Height |
890 mm / 35 in |
890 mm / 35 in |
898 mm / 35.4 in |
| Fuel Capacity |
7 Litres / 1.85 US gal |
7 Litres / 1.85 US gal |
7.2 Litres / 1.85 US gal |
| Frame Type |
Central double-cradle, chromoly steel with aluminum subframe |
Central double-cradle-type 25CrMo4 steel |
Central double-cradle-type 25CrMo4 steel |
| Wheelbase |
1468 mm ± 10 mm / 57.8 ± 0.4 in |
1468 mm ± 10 mm / 57.8 ± 0.4 in |
1472 mm / 58 in |
| Ground Clearance |
290 mm / 11.4 in |
290 mm / 11.4 in |
281mm / 11.1 in |
| Suspension - Rear |
Linkage-assisted WP Xact shock |
Linkage-assisted WP Xact shock |
Linkage-assisted WP Xact mono shock |
Key Specifications
Engine
Four stroke, single cylinder, SOHC, 4 valve
Torque
Not published by manufacturer
Top Speed
Not published by manufacturer
Weight
108.8 kg / 239.7 lbs
Fuel Capacity
7.2 Litres / 1.85 US gal
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Full 2025 KTM 450 SMR Specifications
Year
2025
Make Model
KTM 450 SMR
Seat Height
898 mm / 35.4 in
Wheelbase
1472 mm / 58 in
Ground Clearance
281mm / 11.1 in
Dry Weight
108.8 kg / 239.7 lbs
Fuel Capacity
7.2 Litres / 1.85 US gal
Displacement
449.9 cc / 27.4 cu-in
Engine Detail
Four stroke, single cylinder, SOHC, 4 valve
Bore x Stroke
95 x 63.4 mm
Compression Ratio
12.75:1
Cooling System
Liquid cooled
Engine Management
Keihin EMS
Exhaust
Aluminum
Fuel Induction
Keihin EFI with 44 mm throttle body
Lubrication
Pressure lubrication with 2 rotor pumps
Starter
Electric
Clutch
Suter slipper clutch with Brembo hydraulics
Final Drive
Chain 5/8 x 1/4
Final Drive Ratio
14:46
Primary Drive Ratios
29:72
Transmission / Drive
5 Speed
Frame Type
Central double-cradle-type 25CrMo4 steel
Suspension - Front
48mm Fully adjustable WP Xact inverted fork
Suspension - Rear
Linkage-assisted WP Xact mono shock
Clamp Offset - Triple
16 mm
Handlebar
Neken 28-22mm diameter w/ ODI grips
Rake
26.1°
Steering Head Angle
63.9°
Wheel Travel - Front
283 mm / 11.1 in
Wheel Travel - Rear
266 mm / 10.5 in
Brakes - Front
Single 310 mm disc with Brembo hydraulics
Brakes - Rear
Single 220mm disc with Brembo hydraulics
Tyres - Front
125/75 x 16.5
Tyres - Rear
165/65 x 17
Wheels - Front
3.5 x 16.5
Wheels - Rear
5.0 x 17
Specifications are compiled from manufacturer documentation and cross-referenced
technical sources, and corrected on an ongoing basis.
Spot an error? Let us know.
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