2021 KTM SX 450 F
2021 KTM 450 SX-F
The championship winning KTM 450 SX-F is a proven formula that is the industry benchmark. For 2021, this machine continues to deliver superior performance and easy handling. It features an extremely compact, single overhead camshaft cylinder head and together with the efficient electronic fuel injection, it pushes out an unrivalled 63hp in the most effective way possible. The KTM 450 SX-F is simply the fastest Motocross bike out on the track.
ENGINE
The 450 cc engine is the ultimate powerhouse when it comes to KTM's competitive motocross range. Its compact, lightweight design features a single overhead camshaft cylinder head, fueled by the latest electronic injection system. This enables the impressive power to be distributed extremely efficiently throughout the rev range. Even with its uper-beneficial electric starter, this model is still the lightest 450 cc engine on the MX market.
Engine
- Engine Type:Single-Cylinder
- Cylinders:1
- Engine Stroke:4-Stroke
- Horsepower (bhp):63
- Horsepower (kW):47
- Cooling:Liquid
- Valves:4
- Valves Per Cylinder:4
- Valve Configuration:SOHC
- Bore (mm):95
- Bore (in):3.74
- Stroke (mm):63.4
- Stroke (in):2.5
- Displacement (cc):449.9
- Displacement (ci):27.4
- Compression Ratio:12.8:1
- Starter:Electric
- Fuel Requirements:Premium
- Fuel Type:Gas
Brakes
- Brake Brand Name:Brembo®
- Front Brake Type:Hydraulic Disc
- Front Brake Diameter (in):10.2
- Front Brake Diameter (mm):260
- Rear Brake Type:Hydraulic Disc
- Rear Brake Diameter (in):8.7
- Rear Brake Diameter (mm):220
Carburetion
- Carburetion Brand:Keihin
- Fuel Injector:Yes
- Fuel Injector Size (mm):44
- Carburetion Type:Fuel Injected
Dimensions
- Wheelbase (in):58.5
- Wheelbase (mm):1485
- Ground Clearance (in):14.6
- Ground Clearance (mm):370
Other
- Fuel Capacity (gal):1.8
- Fuel Capacity (l):7
- Frame:Chromium Molybdenum
- Body Material:Plastic
- Radiator Cover:Yes
- Chain Guard:Yes
- Fork Guards:Yes
- Exhaust Guard:Yes
- Foot Peg Location:Driver
- Front Suspension Type:Inverted Fork
- Front Suspension Size (in):1.9
- Front Suspension Size (mm):48
- Front Travel (in):12.2
- Front Travel (mm):310
- Front Adjustable Fork Pre-Load:Yes
- Front Adjustable Rebound Damping:Yes
- Front Suspension Brand Name:WP XACT
- SysModelID:106928
- MfrModelID:450 SX-F
- Year:2021
- Manufacturer:KTM
- Model Name:SX
- Trim Name:450 F
- Family Name:SX
- Product Type:Motorcycle / Scooter
- Manufacturer Type:MX
- Generic Type (Primary):Off-Road
- Manufacturer Country:Austria
- Photo Name:2021_KTM_SX_450F.jpg
- Major Revision Year:2019
- Revision Status:Carryover
- Competitor Code:MOT21OAI000
- Manufacturer Recommend Minimum Age:16
- SysTrimId:327186
- SysMakeId:21
- IsCurrent:Yes
- Historical ID:288874
- Data Provider:CRS
- Parent Company:KTM
- Display Name:450 SX-F
- Engine Displacement to Weight (cc):2.04
- Currency:US Dollars
- Warranty (Months):1
- Destination Charge:450
- Warranty (Condition):Limited
- Rear Suspension Type:Twin Sided Swing Arm
- Rear Travel (in):11.8
- Rear Travel (mm):300
- Rear Adjustable Shock / Spring Pre-Load:Yes
- Rear Adjustable Rebound Damping:Yes
- Number Rear Shock Absorbers:1
- Rear Suspension Brand Name:WP XACT
- Rear Suspension Material:Aluminum
- Seat Type:One-Piece
- Seat Material:Vinyl
- Seat Location:Driver
- Seat Height (in):37.4
- Seat Height (mm):950
- Number Of Seats:1
- Stand Type:Kick
- Steering Control:Handlebar
- Top Crown Material:Aluminum
- Tire Brand:Dunlop®
- Front Tire Width:80
- Front Tire Aspect Ratio:100
- Front Tire Speed Rating:M
- Front Wheel Diameter:21
- Rear Tire Width:110
- Rear Tire Aspect Ratio:90
- Rear Tire Speed Rating:M
- Rear Wheel Diameter:19
- Front Tire (Full Spec):Dunlop® GEOMAX MX3S 80/100 R21 51M
- Rear Tire (Full Spec):Dunlop® GEOMAX MX3S 110/90 R19 62M
- Wheels Composition:Aluminum
- Tube / Tubeless:Tubed
- Front Wheel Width (in):1.6
- Rear Wheel Width (in):2.15