2009 DT BOOK ONLINE

Brought to you by:
P W
EE EEParts
www.pwparts.co.za
Pic by Simon Cudby
Editorial
DUNLOP News
PeeWee Parts
fork Upgrade.
How many of you lot started on
a PW?
Currently in our workshop, we
have two that are being lovingly
refurbished so that another
youngster can fall in love with
the sport. Usually, our first call
for bits is to PW Parts who
stock and distribute just about
everything that you need…
They have just come up with a
fork innovation for the older PW
models. Neil told us all about it:
Buy a second hand Yamaha
PW50 and chances are pretty
good that the forks are badly
damaged and in need of
replacement. The forks on the
PW50 up to 2017 were a very
rudimentary system of spring,
bush and grease , no real
dampening or oil in the forks, and
this was one of the weakest points
of a PW50.
In 2018, Yamaha addressed this
issue and upgraded the forks
from 22mm to 26mm, but more
importantly , the newer forks
are proper little oil filled forks
with better spring rate and oil
dampening. This makes the bike
so much more enjoyable to ride
for the little guys, and instills more
confidence in the rider.
PW Parts stocks both the older
22mm and newer 26mm forks
for direct replacement, however
the challenge has been to offer a
solution to upgrade the older bikes
with the newer upgraded forks.
PW Parts has developed a billet
triple clamp set so that the older
bikes can benefit from the better
26mm oil filled forks,
The top clamp is designed to be
able to fit the standard handlebars,
or they have designed bar clamps
so that you are now able to install
proper 22) ‘‘8/7mm) Pro Taper MX
handlebars to the bike.
This then allows an upgraded
throttle body, lever set, kill switch
and grips.
The handlebar upgrade can also
be done on the standard triple
clamps.
Peewee Parts stocks everything
needed for the fork upgrade, or
the handlebar upgrade, or both…
Plastics, Decal kits, carb kits,
suspension, cables, levers…
everything PW. www.pwparts.
co.za info@pwparts.co.za, or call
081 813 5017
Completed with New Clamps and forks
Clamp Set
New Clamps allow for better bars
Bar Mounts
New fork in the triple clamps. Old and New Forks
GEOMAX EN91
PRO FIM 140/80/18
The new Geomax EN-91 is Dunlop’s answer to the needs of
FIM enduro competition. To conquer the ever more challenging
conditions riders have to face in today’s off-road racing,
Dunlop has designed a completely new tyre. From the tyre’s
contour and overall architecture, to the tread compound,
the pattern or block arrangement, no stone was left unturned
to make sure Dunlop riders have the most versatile fitment
available.
Designed from the ground up, the Geomax EN91 is designed
specifically to be more versatile across a wider range of
riding conditions offering a significant increase in outright
performance in dry, wet and mixed conditions with enhanced
feedback and compliance that boosts bike control and the riders
confidence to push the limits through the vastly increased
versatility and terrain coverage courtesy of Hex Shape Blocks
and Tilted Crown Blocks, contributing to greater grip thanks
to more biting edges which also gives improved durability on
the tyre and better rider comfort.
The new Dunlop EN91 enduro tyres are road-legal so
suitable for FIM competition and trail riding and as such that
means Dunlop’s only road legal enduro design in their range.
Here in South African we all know and are familiar with the
AT81 … So, What is the difference between the EN91 and
the AT81?
As an off-road competition tyre the AT81 doesn’t have to
comply with the FIM Enduro regulations. The rear knob
height for the Geomax AT81 is 16.7mm, whereas the Geomax
EN91 complies with the 13mm FIM limit.
Although an all-rounder in terms of its ability to work in different
grip conditions, the AT81 tyre construction is closer to MX
and Rally-type tyres than to European-style FIM enduro patterns.
That means more consideration is handed to heavy-duty
use and durability,
The EN91 has therefore shorter tread depth but is has more
“give” in the construction and is designed to grip better, improve
handling and perhaps cope better with the more varied
riding conditions
Another difference is the sizing: EN91 complies with ECE 75R
sizing for off-road tyres, whereas AT81 follows the usual NHS
off-road tyre sizing. In terms of physical width an AT81 120/90-
18 is identical to a 140/80-18 in EN91.
From its inception the Geomax EN91 was designed to help
maximise grip across a range of terrain but in particularly rocky
and unpredictable surfaces – in short to perform well when the
tyre is deforming and working hard. Dunlop’s ‘Casing Tension
Control System,’ incorporated into the construction design,
“improve compliance on bumps and improves the feedback to
the rider” Dunlop explains.
“Tilt Crown Block” technology was developed for the new
EN91 rear tyre to help provide higher grip on hard terrain, such
as rocks. Dunlop says the tilted blocks “improve terrain bite,
aid directional stability and increase traction by forcing rocks
and dirt to gather around the centre of the crown blocks.”
Durability is important of course and Dunlop say the new
compound has increased shearing resistance but does not
compromise performance. By using a high-performance compound,
Dunlop has also been able to “significantly improve the
rebound properties of the tyre.”
Trade Enquiries Welcome
Contact us for your nearest stockist