Home' Smart Farmer : February 2010 Contents FEBRUARY, 2010
BMX start ramp
BMXs benefit from a start ramp.This is
simply a large mound with a steep bank
where riders start at the top.This gives
them momentum for the first jump.
Berms are banked corners which
enable the bike to be ridden through the
corner at higher speed
Draw up a plan building in the jumps
and berms.The kids who designed this
track even made a simple clay model so
they could visualise what it would look
Once you know how many jumps and
berms you want, you can estimate how
much dirt you'll need.
A single jump about .7 metres high
and 2m wide at the top of the jump (and
3m wide at the base) would use roughly
2.5 cubic metres. Make a double jump
and you are looking at 5cu m, and a
table top jump about 8cu m. A berm
about .7m high and an 8m diameter
would use about 11 cu m.
If you are working on flat ground it is
best not to dig holes on your track to get
your dirt, otherwise they will end up
filling with water when it rains.You may
need to bring extra dirt in. If you are
planning excavations on your property
such as building a dam or cutting a pad
for a shed, this may be an ideal way to
use your excess dirt.
Otherwise you can bring it in from
somewhere else. Excavators are always
looking for somewhere to dump their
excess dirt.There are even companies
that match people looking to get rid of
dirt with people that need it.You should
be able to get this for nothing or 'dirt
Keep in mind that all dirt isn't the
same. People will always say they have
"clean fill" but beware -- it could have
rock, builder's rubble or, in a worst case,
Also certain types of dirt are more
suitable than others. Clay type soils are
more likely to hold together on jumps
and berms than loamy and sandy soils.
If you are getting dirt trucked in get it
dumped as close as possible to where
you want the berms and jumps.This
minimises the amount of dirt you will
need to move with the tractor.
Mark out the track where the berms
and jumps will go using spray marker
paint. Get the kids to go for a test ride
around the marked out area to see if it
feels right. Check that corners are not
too tight and that there is adequate
distance to brake into a corner after a
Then it is really a case of getting the
dirt where you want it using the front
end loader. A 4-in-1 bucket is very handy
as you can use the bucket in the closed
position for scooping and dumping dirt.
Then opening up the bucket exposes
the blade for grading the jumps into
Keep in mind making the jump wide
at the base as it will get narrower at the
top. Also shape the jumps at angles the
riders can handle. It is quite easy to
make adjustments after a test ride.
This will take care of 99 per cent of
the back-breaking work
After all the dirt has been pushed and
shaped it will need to be compacted.
Simply riding around the track will help
this. A little bit of old-fashioned manual
labour will be needed to put the final
touches on the contouring.
Over time, riding around will cut
grooves into the track.These can be
filled and graded with the loader.
Safety is always the highest priority.
Always use a tractor that complies
with Australian Standards including
Roll Over Protective Structure, seat belt
and protective covers. Only take on
tasks within the capability of the
machine and operator. Follow all
relevant safety warnings, instructions
and regulations. Wear appropriate
safety equipment and use common
This article is a general guide only.
Conditions vary from site to site.
Judgement relating to your individual
conditions must be exercised.
East Wind tractors and Hanmey
implements feature in this article.
Need to know more:
For more information visit eastwind.com.au or
hanmey.com.au or ring 1300 TRACTOR (1300
87 22 86).
AIRBORNE: Whether it is designed for a mini motorcycle or for a BMX
bike, your home-made bike course can provide hours of fun.
EASY DOES IT: Keep in mind the level of experience of the rider when
designing the course's twists, turns and jumps.
• from previous page
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Phone 8531 2244
Brent Ramsey 0427 802 200
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