2013 Motocross Bike Buyers Guide

450 FOUR-STROKES

KTM 350 SX-F
$ 8,699
Displacement – 349.7 cc
Engine Type – Single-cylinder, four-stroke
Claimed Dry Weight – 231 lbs.
Bore X Stroke – 88 x 57.5 mm
Compression Ratio – N/A
Carburetion – Keihin 42 mm throttle body EFI
Ignition – Kokhusan (Digital)
Transmission – Five-gear, multi-disc clutch
Fuel Capacity – 1.98 gal.
Frame – Chromoly central tube
Wheelbase – 58.86 in.
Rake – 63.5 degrees
Seat Height – 39.06 in.
Tires – (F) 80/100-21, (R) 100/90-19
Suspension Travel – (F) 11.81 in., (R) 12.48 in.
Front Brake – 260 mm disc brake
Rear Brake – 220 mm disc brake
Final Drive – Chain
Handlebar – Tapered Aluminum Renthal
KTM 450 SX-F
$8,999
Displacement – 449.3 cc
Engine Type – Single-cylinder, four-stroke
Claimed Dry Weight – 234.1 lbs.
Bore X Stroke – 95 x 63.4 mm
Compression Ratio – N/A
Carburetion – Keihin 44 mm throttle body EFI
Ignition – Digital
Transmission – Five-gear, multi-plate clutch
Fuel Capacity – 1.98 gal.
Frame – Chromoly central tube
Wheelbase – 58.86 in.
Rake – 63.5 degrees
Seat Height – 39.06 in.
Tires – (F) 80/100-21, (R) 110/90-19
Suspension Travel – (F) 11.81 in., (R) 12.48 in.
Front Brake – 260 mm disc brake
Rear Brake – 220 mm disc brake
Final Drive – Chain
Handlebar – Tapered Aluminum Renthal
Kawasaki KX450F
$8,699
Displacement – 449 cc
Engine Type – Liquid-cooled, four-stroke single with DOHC and four-valve cylinder head
Curb Weight – 248 lbs.
Bore X Stroke – 96 x 62.1 mm
Compression Ratio – 12.5:1
Carburetion – DFI with 43 mm Keihin throttle body
Ignition – Digital DC-CDI
Transmission – Five-speed
Fuel Capacity – 1.64 gal.
Frame – Aluminum perimeter
Wheelbase – 58.3 in
Rake – 26.9 degrees/ 4.4 in.
Seat Height – 37.6 in
Tires – (F) 80/100-21 (R) 120/80-19
Suspension Travel – (F) 12.4 in., (R) 12.4 in.
Front Brake – 250 mm petal disc with dual-piston caliper
Rear Brake – 240 mm petal disc with single-piston caliper
Final Drive – Chain
Handlebar – Renthal Aluminum
Suzuki RM-Z450
$8,699
Displacement – 449 cc
Engine Type – Liquid-cooled four-stroke, single-cylinder DOHC
Curb Weight – 249 lbs.
Bore X Stroke – 96 x 62.1 mm
Compression Ratio – 12.5:1
Carburetion – Fuel Injection
Ignition – Electronic ignition (CDI)
Transmission – Five-speed constant mesh
Fuel Capacity – 1.6 gal.
Frame – Twin-spar aluminum
Wheelbase – 58.9 in.
Rake – N/A
Seat Height – 37.6 in.
Tires – (F) 80/100-21, (R) 110/90-19
Suspension Travel – (F) 12.2 in., (R) 12.2 in.
Front Brake – Disc brake
Rear Brake – Disc brake
Final Drive – Chain
Handlebar – Tapered Renthal Aluminum
Honda CRF450R
$8,440
Displacement – 449 cc
Engine Type – Liquid-cooled, single-cylinder, four-stroke
Curb Weight – 242.7 lbs.
Bore X Stroke – 96 x 62.1 mm
Compression Ratio – 12.5:1
Carburetion – PGM-FI, 46 mm throttle body
Ignition – Full transistor with electronic advance
Transmission – Close-ratio five-speed
Fuel Capacity – 1.66 gal.
Frame – Aluminum twin-spar perimeter
Wheelbase – 58.7 in.
Rake – 27.04 degrees/4.57 in.
Seat Height – 37.5 in.
Tires – (F) 80/100-21, (R) 120/80-19
Suspension Travel – (F) 12.2 in., (R) 12.5 in.
Front Brake – Single 240 mm disc with twin-piston caliper
Rear Brake – Single 240 mm disc
Final Drive – Chain
Handlebar – Renthal Aluminum
Yamaha YZ450F
$8,490
Displacement – 449 cc
Engine Type – Liquid-cooled DOHC four-stroke; four valves
Curb Weight – 245 lbs.
Bore X Stroke – 97.0 x 60.8 mm
Compression Ratio – 12.5:1
Carburetion – Keihin 44 mm, Yamaha Fuel Injection
Ignition – T.C.I.
Transmission – Constant-mesh five-speed, multi-plate wet clutch
Fuel Capacity – 1.6 gal.
Frame – Aluminum bilateral beam frame
Wheelbase – 58.7 in.
Rake – N/A
Seat Height – 39.4 in.
Tires – (F) 80/100-21, (R) 120/90-19
Suspension Travel – (F) 12.2 in., (R) 12.4 in.
Front Brake – Hydraulic single disc brake, 250 mm
Rear Brake – Hydraulic single disc brake, 245 mm
Final Drive – Chain
Handlebar – Tapered Aluminum
Husqvarna TC449
$7,999
Displacement – 449 cc
Engine Type – Single-cylinder, four-stroke four-valve DOHC
Curb Weight – 238.1lbs.
Bore X Stroke – 98 x 59.6 mm
Compression Ratio – 13.0 x1
Carburetion – EFI with Keihin D46
Ignition – CDI electric with variable advance
Transmission – Five-speed
Fuel Capacity – 2.10 gal.
Frame – Steel
Wheelbase – 58.7 in.
Rake – 25.8 degrees
Seat Height – 37.9 in.
Tires – (F) 80/100-21, (R) 110/90-19
Suspension Travel – (F) 11.8 in., (R) 11.8 in.
Front Brake –260 mm disc
Rear Brake –240 mm disc
Final Drive – Chain
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