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The 2002 Derbi
SM50 is a Spanish built 49cc motorcycle imported
into the United States by Cycle
Imports. The Derbi company has been building
world class scooters for many years and just like
any good bike, people love to race them.
The 2002 Derbi SM50 is the first in its class
to offer some great innovations.
Twin spar frame, ridged swing arm, inverted Showa
forks, stiff rear suspension, front and rear disk
brakes (front brakes are unbelievable), braided
brake lines, aggressive Motard stance, comfortable
saddle height, full street lighting kit complete
with speedo, tach and warning lights, tough handle
bars, six speed trans, and of course the 17"
wheels.
How did I set up the Derbi SM50 to be competitive
with Honda's bullet proof XR100 and the torque
of Yamaha's TTR125L?
1) I replaced the stock exhaust system with a
race system supplied by Cycle
Imports 2) I raised the needle in the carb
to its highest setting. 3) I replaced the two
stroke injector oil with Silkolene Comp 2 Plus
synthetic oil. 4) I put some good gas in the tank.
5) I adjusted the air mixture of the carb until
I had a nice light brown spark plug. 6) I replaced
the fork oil with some 20w.
Impressions:
What a *&@# blast to ride! The brakes are
sick... I would love to see King Gary do a stoppie
on this machine. As long as you are in the R's
between 7,000 & 12,000 you are hanging with
or passing the two contenders. It is definitely
about sliding the backend and fanning the clutch
to stay in the power. If you are a four stroke
person (like I am ) the new power band will be
something to get used to, but once you figure
it out the joys of this little Motarder really
shine through. Comfort, brakes and handling are
what really drives the Derbi to the top. I have
owned and pounded all three bikes tested and feel
compelled to tell you that they are all great
bikes. The Derbi just offers us SuperMotard fans
a competitive cost effective solution for our
mini motard needs.
The next article will include results from testing
the 74cc kit and 21mm carb I am about to install.
Please post your questions and comments in the
Bulletin Board.
NOTE:
Test rider weighs 170lbs @ 5'9" tall
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