The 2027 KTM 450 SMR is a purpose-built Supermoto race bike, not a converted motocrosser. Its 449.9 cc SOHC single runs Keihin EFI through a 44 mm throttle body into a five-speed gearbox, and WP XACT Closed Cartridge suspension is valved specifically for tarmac. Brembo brakes, a SUTER slipper clutch, ALPINA tubeless wheels and Metzeler Racetec SM slicks round out a bike built to win on the box. Available now at WMR Competition Performance in Stuart, FL.
2027 Highlights
- New colorway and graphics that double down on KTM orange, with a dash of red.
- Updated powerpack that complies with the latest AMA and FIM sound requirements.
- Compact SOHC engine positioned for ideal anti-squat, with optimal mass centralization.
- Chromoly steel frame paired with a hollow, die-cast swingarm for minimal unsprung weight.
- WP XACT Closed Cartridge spring fork and WP XACT rear shock, damped specifically for Supermoto.
- Tubeless 16.5″ front and 17″ rear ALPINA spoked wheels on Metzeler Racetec SM racing slicks.
- Brembo 4-piston radially mounted front caliper on an oversized 310 mm floating disc.
- Hydraulic Brembo clutch with a SUTER slipper clutch.
- CNC-machined triple clamps with 16 mm offset.
- Quickshifter for clutchless upshifts from 2nd through 5th gear.
- Map select switch toggling two engine maps and engaging Traction Control, Launch Control and the Quickshifter.
- Connectivity Unit Offroad available as a PowerPart, adding KTMconnect app functionality.
Technical Specifications
Engine
| Engine Type |
Single Cylinder, 4-Stroke |
| Displacement |
449.9 cc |
| Bore / Stroke |
95 / 63.4 mm |
| Compression Ratio |
13.1:1 |
| Starter / Battery |
Electric Starter / 12.8V, 2 Ah |
| Transmission |
5 Gears |
| Fuel System |
Keihin EFI, 44 mm Throttle Body |
| Lubrication |
Pressure lubrication with 2 oil pumps |
| Primary Ratio |
29:72 |
| Final Drive |
14:46 |
| Cooling |
Liquid Cooling |
| Clutch |
Wet multi-disc SUTER clutch, Brembo hydraulics |
| Ignition |
Keihin EMS |
| Silencer |
Aluminum |
Chassis & Suspension
| Frame |
Central Double-Cradle Type 25CrMo4 Steel |
| Sub Frame |
Aluminum reinforced Polyamide |
| Handlebar |
Neken, Aluminum Ø 28/22 mm |
| Front Suspension |
WP XACT USD Closed Cartridge, Ø 48 mm |
| Rear Suspension |
WP XACT Monoshock with Linkage |
| Suspension Travel Front / Rear |
283 / 266 mm |
| Steering Head Angle |
26.1° |
| Triple Clamp Offset |
16 mm |
Brakes & Wheels
| Front / Rear Brakes |
Disc Brake 310 mm / 220 mm |
| Front / Rear Rims |
3.5 x 16.5"; 5 x 17" ALPINA |
| Front / Rear Tires |
125/75 R16.5; 165/55 R17 |
| Chain |
520, Non-sealed |
Dimensions & Weight
| Wheelbase |
1,472 mm ± 10 mm |
| Ground Clearance |
281 mm |
| Seat Height |
898 mm |
| Tank Capacity, Approx. |
7.2 L |
| Weight (without fuel), Approx. |
109.3 kg |