Suzuki, it's hard to find fault with your lineup. New and improved 2010 Suzuki RM-Z450 breaks cover! Having said that, I sure do miss 2 strokes. Last time I checked there was no trouble moving those units in any displacement size. I have friends who still ride open class 2 strokes and have no problem with lack of horsepower. Jerry McCommons Pittsburgh, PA More impressive yet is now nimble the RM-Z feels in the air. With 250F-like aerial agility, the 450 is very confidence inspiring. Though we didn’t weight it on a scale, its compact ergos and narrow feel coupled with the super-responsive power make the RM-Z450 exceptionally light on its feet. As our test rider described, “Flickable is an understatement.”
Suzuki didn’t set out to re-invent the wheel with the ’10 RM-Z450, but a handful of moderate revisions focus on all-over refinements to the chassis, motor and fuel injection system.
In the motor department, Suzuki aimed at improving power from top to bottom. New intake and exhaust cams and a revised intake tract were designed to boost power in the low, mid and top-end range and also give the RM-Z more mid-range punch. Further assisting in power improvement is a revised fuel-injection system. The 450 comes with two pre-programmed ignition map settings – one standard and one leaner setting (for high humidity and/or altitude). The FI is adjustable through mode-select couplers behind the front number plate.
The chassis is also thoroughly re-worked for 2010 starting with the frame. New flex characteristics aim at improving straight-line stability without sacrificing the RM-Z’s noted sharp-handling capabilities. Coupled with the new-generation frame are revised suspension settings, which include stiffer spring rates both front and rear
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