| Yorkshire
Junior Grasstrack Club operates according to the class rules and
regulations laid down by the governing body of British motorcycle
sport, the ACU. grass track classes are governed by both rider age and engine capacity. The
following information describes the differences between these
classes and is intended as a general guide only. Please feel free to
contact us if you require any further
information. |
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Cadet
- White Plate - Black Numbers
The ideal
way to start the sport for 6 and 7 year old riders. Machines
used are fully automatic 50cc bikes ranging from the ever popular Yamaha ‘Pee-Wee’ PW50 to highly tuned mini motocross bikes with
speeds of up to 50mph. These simple to ride machines offer the
opportunity for youngsters to learn the skills required in a safe
and controlled environment. |
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Cadet
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Black Plate - White Numbers
A class
for 6-8 year old riders using purpose built machines of up to
60cc (2-stroke) or 90cc (4-stroke). The class presents the ideal
opportunity for youngsters to get their first taste of a real grass track
bike and competition is always fast and furious. Also
eligible for this class are motocross machines of up to 65cc, most
popular of which is the Kawasaki KX60. |
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Junior
-
Red Plate - White Numbers
A class
comprising of pure grass track machines using engines of up to 100cc
(2-stroke) or 130cc (4-stroke). A very competitive class which
always guarantees a good turnout of riders, Juniors range in age
from 9-11 years. Similar in overall size to the Cadet bikes,
the 100cc machines offer quite a bit more speed and power. |
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Intermediate
- Yellow Plate - Black Numbers
12 to
14-year old
riders on 2-stroke powered machines up to 150cc or 4-strokes of up
to 200cc. The light weight of a grass racing bike combined with the
power of a modern 125cc engine makes a potent combination. Usually slightly larger in
physical size than the 100cc bikes, Intermediate is largest engine
capacity class reserved exclusively for youth riders. |
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Senior
A 250
- Green Plate - White Numbers
Historically
a favourite class of grass track stalwarts, most 250cc machines are
powered by single cylinder ex-motocross engines. With razor sharp
handling due to their light weight but explosive power delivery,
250's are not always the easiest of machines to handle. Sadly not
now as popular as they were, in youth grass track they can be ridden
by 15-17 year old competitors. |
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Senior
B 350
- Blue Plate - White Numbers
A fairly
recent and increasingly popular class in youth grass track. Most
350cc machines use speedway derived 4-stroke engines running on
methanol. Hugely powerful, yet infinitely more tractable than the
2-strokes, most machines have a 2-speed gearbox. In
youth competition riders will range in age from 15-17 years,
though most have progressed through the ranks before attempting to
manage this sort of power! |
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| Motocross
Classes |
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| You
don't necessarily need a grass track bike to race with us! -
Yorkshire Junior Grasstrack Club also runs classes specifically for
Motocross bikes of 65-125 cc. You don't need to modify your bike to
take part, and many of our riders are also regular Motocross
competitors. |
Motocross
65 - Black Plates - White
Numbers
One of the most popular classes in youth motocross, and becoming
increasingly popular at club level in youth grass track racing.
Whilst the vast majority of machines used are the ever popular
Kawasaki KX 60 and KX 65, the class is open to all MX type machines
of up to 65cc with manual gearbox. Riders range in age from 7 to
11 years. |
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Motocross
85
- Red Plates - White Numbers
Another class
popular in junior motocross and becoming increasingly popular in
youth grass track. Big and small wheel versions of these rapid
machines are eligible at club level, and for the first time this
year there has been a new class introduced at National Championship level for
small wheel versions. Riders range in age from 9-15 years. |
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Motocross
100/125
- Yellow Plates - Black Numbers
A real
'handful' on a flat grass oval, this class can produce some exciting
racing. A modern 125cc motocross bike combines light weight
with plenty of power to break the back end away in the corners!
-Riders range in age from 14-17 years. |
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Adult Classes |
Senior 250cc - Green Plate - White Numbers
A traditional grasstrack class and one which holds particular significance for
the grasstrack 'purists'. Explosive powerbands of the mainly motocross derived
2-stroke motors combined with razor sharp handling in a bike which weighs little
more than a moped! This class has provided some of the most exciting racing over
the years and thankfully seems, once again, to be gaining in popularity with
flourishing grids at National level. |
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Senior 350cc - Blue
Plate - White Numbers
Becoming more and more popular every season. The 350 class now boasts
National Championship status and is no longer seen as simply a
stepping stone to the 500cc class. Purpose built machines running on
methanol with mainly 2 speed gearboxes are most often 'sleeved down'
versions of the 500cc bikes and in many cases almost as fast! Many
junior riders use this class as their first in-road to adult
competition. In youth competition riders will range in age from 15-17
years, though most have progressed through the ranks before attempting
to manage this sort of power! |
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Senior 500cc - Yellow Plates - Black numbers
The pinnacle class of grass track racing and raced at championship level
throughout Europe. Single cylinder 4-stroke machines often produce in excess of
70bhp allowing speeds approaching 100mph on the longest tracks. Not a class for
the beginner, racing is close and ultra competitive. These lightweight machines
have a power to weight ratio that is unmatched by even the fastest 'superbikes'. |
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Unlimited Motocross - Plates as CC Class
As it's title would suggest, there are no limits as to the type of motocross
machine you can use in this class. In recent seasons we have seen bikes ranging
fron Cheney BSA's to modern YZF426 Yamaha's and just about everything else in
between! You could even race your Short Track or road legal Enduro machine
providing the lights and number plate are removed or taped over. A real fun
class which provides some seriously competitive racing as well as great
entertainment for spectators! |
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