Suzuki has made the leap. The 2008 RM-Z450 is the first motocross bike that is fuel injected. And it’s probably just in time, considering how often some of these guys spend upside down while in the air.
After some testing, they found that there is much better roll on power and delivery. They also tuned the ports, adjusted the cam timing, increased flywheel inertia, redesigned the combustion chamber and a host of other improvements that should create a new standard for motocross.
I pilfered some specs for you:
- Overall length: 2185mm (86.0 in.)
- Overall width: 830mm (32.7 in.)
- Overall height: 1260mm (50.0 in.)
- Wheelbase: 1480mm (58.3 in.)
- Ground clearance: 350mm (13.8 in.)
- Seat height: 955mm (37.6 in.)
- Dry weight: 101.5kg (224 lbs.)
- Engine type: 4-stroke, liquid-cooled, DOHC
- Bore: 96.0 mm
- Stroke: 62.1 mm
- Displacement: 449 cm3 (cc)
- Compression ratio: 12.8:1
- Fuel system: KEIHIN FI 43mm
- Lubrication system: Suzuki Advanced Sump System
- Clutch: Wet multi-plate type
- Transmission: 5-speed constant mesh
- Primary reduction ratio: 2.625 (63/24)
- Gear ratio Low: 1.800 (27/15), 2nd: 1.471 (25/17), 3rd:
1.235 (21/17), 4th: 1.050 (21/20), 5th: 0.909 (20/22)
- Final reduction ratio: 3.846 (50/13)
- Front suspension: SHOWA 47mm telescopic forks,
pneumatic/coil spring, oil damped.
- Rear suspension: Swingarm, link type, SHOWA
piggyback-reservoir shock
- Caster: 25。30′
- Trail: 111 mm (4.4 in.)
- Front brake: Disc
- Rear brake: Disc
- Front tire size: 90/ 100-21
- Rear tire size: 120/ 80-19
- Fuel tank capacity: 6.2 L (1.6 US gal.)
- Body color: Champion Yellow No.2 (YU1)
motocross, motorcycle, off road, suzuki, RM-Z450, fuel injection