~
~
Factory:
..
.
11~_e_r_s
By Nate Raaba
Photos by Kea Faagbt
_
.
TIle HOIIlIa CR2SO has a fi"'y-tIIMd motor
a. sewenl works parts 011 tile cllassis.
Cylinder porti-r is s1igldly modified for
stronger acceIention, COMpressioIl is
illClUSed, CIJ1IlIretDr jettilg is altered, tIIere
is a strollger ipitiollalll dlltdl c:apcity is
illCl'USed. CrIIIksIIaft mass CM be alteretl
ud gear ratios il tile tra_issi.. are often
chalged accordilg to rider ,.-efereIce.
HOlda uses works Showa sapension froid
alii rear, with alumi..m lower alii
magnesium upper triple damps used for the
forb. Wheels are madeof die-cast
mapesium, with a It-inch rear wheel
replacilg tile stock II-inch unit. Honda uses
Dunlop or Bridgestolle tires, dePHding 01
track conditiOll and rider preference. The
brakes havean adjustable stoppingpointand
utilizespecial pads in the standard calipers.
Rider controlsare beefedup a. Renthal
.
handlebaB replace the stock units.
The motor in Kawasaki's KX2SO
comes directly from the factory il Japal
then mechanics make the necessary
modifications to suit the Americalriden
and tracks. Afactory ignition suppliesthe
spark to the mixture fed throughthe stock
carburetor, and gasses exit through a Bill
Pipe's exhaust built to Kawasaki's
specifications. Frontsuspension comes
from the Kayaba factory and features a
new cartridge system that is targeted for
the 1991 production machine. Both sets of
triple clampsare made of magnesium, as
well as the upper rear shoc:k tower and
lower rocker arm. The rear shock is also'
fadory KYB and is targeted for the 1991
produdion line. Dunlop tires are fitted to
the standard wheels, and Kawasaki may
use tubeless rear tires later in the season.
Aspecial caliper is used on the front brake with two different pistons.
SuZIIki's RM250l has a modified
standard motor willi standard.
. tra_ission fed bya factory Mikuli
mapesium carburetor. Suzuki builds
a works exhaust pipe aid fits a
carbon-fiber: silencer to the end.
Factory SIIowa forks are mounted in
magnesium triple clamps, while the
rear saspellSiOll features a works
Showa sIIoc:k mounted to the standard
suspensiOll linkage. Askid plate is
welded to the bottom of the frame.
Magnesium hubsare lacedto .
Takasagoor ExCel rims, and either
works or standard Nissil brakes are
used. Suzuki also adds on'Aurbis
guards, A1ulililite ha.leban, AFlM
$III'Odlets willi RK ehail and a
redllIOsel seal
36
