Since its introduction in 2008, Yamaha’s
street-legal WR250R has continued to impress with its competent alloy
chassis, potent but low-maintenance 250cc DOHC thumper engine,
long-travel suspension, and reasonably light weight.
Three years later, the design is holding tough, with basically just
graphic changes. Yamaha says the bike can trace its lineage to YZF
motocrossers and more aggressive enduro bikes, and we came away
convinced this was not just marketing hype.
Our 298-lb California model weighs just one pound more than the
49-state version, and with its lights, turn signals and license plate,
made riding to the trails and then hitting it a fairly do-able
proposition.
We’d estimate this is about a 60:40 bike in
terms of its street/offroad prowess, and changing the tires to full-on
knobbies would make it about a 50:50.
If you’re more an on-road person, you may also want to look at the
WR250R’s supermoto-style sister, the WR250X, which differs mainly by use
of 17-inch wheels, sport tires, larger front brake, slightly taller
gearing, and different graphics. Both of these bikes were extensively
reviewed when they were launched
Street Riding Impressions
The WR250R’s fuel-injected, 4-valve-per-cylinder
mill churns out respectable go-power, even with relatively lean,
EPA-satisfying tuning and three-chamber muffler. When cold especially,
it displayed a slight off-idle stumble at times, but this is something
that could be tuned out.
We dyno’d the same-engined 250X model last year, and its oversquare,
11.8:1 compression ratio powerplant returned 27.7 hp and 16.95 ft-lbs
torque. Combined with its wide-ratio six-speed transmission this is
enough to stay ahead of traffic around town. It will easily wheelie in
first, and second gear with a little clutch slip.
On the open road, with a 200-lb rider geared up and acting like a
sail, it will still pull just shy of 90 mph into mild headwinds, and up
to around 95 mph or so when tucked in, which is enough power even if
traveling via interstate highways.
If desired, this bike could be pressed into duty as an
ultra-lightweight adventure tourer, at least for several hundred miles,
if not longer, depending on your needs and tolerance – particularly if
much of your route is on secondary roads and off road.
Handling from the 55.9-inch wheelbase machine is stable enough at
speed, yet light and nimble around town. Riding on 18-inch rear and
21-inch front wheels, the Bridgestone Trail Wing TW-301 front and TW-302
rear tires have adequate grip on tarmac. The 46mm, 10.6-inch-travel KYB
fork, coupled with Soqi shock offering equal travel in the rear, soak
up expansion joints and potholes with aplomb.
Slowing down the action is easy enough with a single 250mm disc brake up front, and 230mm rear disc.
Passenger pegs make it possible to carry someone
at least moderate distances, and, if desired, the stock 36.6-inch ride
height can be shortened by nearly an inch by means of a
shock-linkage-mounted clevis pin arrangement. While sitting on the bike,
normal sag under my 185 lbs dropped the ride height so I could just
plant both feet flat beneath my 34-inch inseam.
The bike comes rather softly set up for street duties, but front and
rear suspenders have provision for spring preload, as well as
compression and rebound damping adjustments – items lacking on
less-expensive Japanese competitors.
Off-Road Riding Impressions
The WR250R is close to being the proverbial “dirtbike with lights,”
but alas, the component spec, including the street-legalizing extras
make it 42 lbs heavier than the longer-travel WR250F enduro, so we have
no illusions there.
This said, Yamaha has surely done its homework
on the WR250R to make it as capable in the loose stuff as possible. The
semi-double-cradle frame uses cast and forged aluminum sections to
comprise the main frame, and steel downtubes reinforce the structure,
adding up to good rigidity.
A stiff asymmetrical swingarm, cast aluminum cross members, and a
22mm rear axle also help keep things in line and combine with obvious
work done toward achieving mass centralization.
In short, the WR250F hides its extra pounds well, and handles gravel
and dirt roads, mud, grass, and loose dirt and rocks reasonably well.
Its long suspension lets you plow over 6-inch or larger rocks, and soak
up square-edge holes that would have lesser bikes destabilized.
In the high mountain desert in and around El Mirage, the bike showed
itself at least able to hold its own. The only sketchy part was when
hitting deep, loose sand. Bikes with true desert tires we rode with
could stay on line much better, whereas the closer knob pattern on the
Yamaha’s on/off-road compromise tires often had more than they could
handle.
Hitting deep, rutted sand washes at anywhere from 20-40 mph, we sort
of had to just hold on and keep the bike upright, staying mindful of
body positioning, trying not to nail something that could affect
steering. Several times we would get channeled by the rivulet-marked
surface we were floating through, started to plow the front sideways and
wondered whether we would recover. Fortunately we did, but it did not
encourage us to fly like banshees through the open scrub environment
like guys on better-equipped dirtbikes could.
Conclusion
As an all-arounder, this bike is terrific. Under mixed use, it
returned close to its estimated average 71 mpg, and only slowly sipped
from its 1.9-gallon fuel tank (2.0 gallons for 49-state models). We
would have liked a tachometer to see how close it was to its 11,500-rpm
redline.
Tuesday, May 14, 2013
Subscribe to:
Post Comments
(
Atom
)

















































0 comments :
Post a Comment