Fuel-injected 250cc MX'er revs to 13 500
Fuel-injection will reach the MX2 motocross class in the last quarter of 2009 with the introduction of the 2010 Suzuki RM-Z250.
Suzuki was the first to introduce a fuel-injected production motocrosser two years ago with the launch of the a href="http://www.motoring.co.za/index.php?fSectionId=759&fArticleId=4399960" target="_blank">RM-Z450; soon MX2 riders will have the same benefits.
No decision has yet been made as to when it will be released in South Africa but don't expect to see it before early 2010. Prices, as always, when they get here.
The RM-Z250's battery-less system is derived from that of the 450, with a 43mm throttle body, a progressive throttle linkage to reduce the dreaded spritzer snatch and a 16-bit engine control unit, all powered by a compact magneto-generator.
The engine also has revised cam timing and intake ports and a stronger connecting rod so it can rev to a snarling 13 500rpm, and produce, says Suzuki, more power and more torque than its carburettor-fed predecessor.
The frame has been revised with heavier lower frame rails (wall thickness is up from 2.5 to 3mm) but the side rails are now shallower than before.
There's also a new swing arm with an improved centre brace that not only is more rigid but also concentrates the unit's mass around the bottom of the monoshock to improve suspension action and, ultimately, traction.
New plastics with black number boards and an aluminium fuel tank make top of the bike narrower for enhanced race-track agility and new footpegs make it easier to get to the gearshift and rear brake in the heat of battle.
Suzuki calls it "a factory ride straight from the dealer"; the rest is up to you.