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Frame Slider Design and Selection

Call them crash protectors, crash long, through-the-engine mounting bolt.
bobbins, fairing protectors or frame This method is by far the strongest
sliders, all these products ultimately available as impact forces are allowed
seek to do one thing - protect your to be distributed over a much larger
expensive bodywork or the essential and area.
often expensive structural parts of your This is also the second more costly
motorcycle from damage in the even of a design as these long bolts are quite
fall or tip-over. The frame slider expensive
concept is as old as the proverbial to manufacture. The design must be
'crash bar' and today there are as many structurally strong enough not to break
designs and brands as there are models of off
bikes. The proliferation of these types when encountering the various types of
of products testify to the success of the impact forces but not so strong that
idea of providing a sacrificial item to these
absorb some of the damage in the event of forces would be transmitted entirely to
a fall. We are by no means experts on and damage the considerably more costly
this concept nor were we the first to frame mounting points. In other words
come you want to sacrifice your slider before
up with it, but in this article we hope your
to provide you with an unbiased view so fairing and then your frame in that
that you can make an informed decision order. It's a delicate balance and there
when you're ready to put down your hard is no sure
earned cash.Cost:Cost of the frame way to ensure that any one design will
sliders must be appropriate to the items accomplish this desired goal.Frame Slider
that they are designed to Material:The choice of material used for
protect. Price is not necessarily the the frame slider should be a balance of
best indicator of quality. Poorly the following
designed frame 3 requirements:Abrasion Resistance - the
sliders made of the nicest shiniest material should be hard enough to be
materials may not serve their purpose as able to slow the bike down in a slide
well as and not be totally worn down to the bolt
well designed but less 'bling' half
ones.Mounting Configurations:The frame way through a slideStructural Strength -
slider must be designed to mount securely the material should be strong but not
onto a strong enough part of brittle and snap off too
the motorcycle so that impact forces can easily on impactEnergy Absorption-the
be adequately distributed or absorbed. material used should have some energy
Here are some popular mounting absorbing
configurations.Fairing Mounted Frame properties but not be so hard that all
SlidersSliders that mount onto the impact forces are transmitted to the
fairing with small fairing screws may mounting
provide some points or fasteners (solid steel or
protection in a minor tip-over but offer aluminum materials are examples of
very minimal protection in a slide. non-energy
These absorbing materials).Most high quality
sliders are not generally recommended frame sliders today are made of some kind
for serious riders.Frame Mounted Sliders
- DirectThe most popular and viable of nylon or other for energy absorption
mounting option is directly to a selected and with aluminum inserts for
strong point strengthening
of the frame. Sliders with this design of the fastening points. The range of
offer the most protection and impact nylon types, with different levels of
force abrasion
distribution. The installation of this resistance and "brittleness" used is
type of slider often require modification also quite varied.Fasteners and
of the Components:Quality of materials used,
fairing and in some cases like the Honda aesthetics and quality of workmanship
VFR800, as extreme as requiring the should also be
modification of the coolant bottle. For considered when choosing the right frame
this reason, many choose the first or the slider for your bike.
Look for high quality anodized steel
third option as fairing modification can bolts. Black non-coated bolts will rust
at times be quite intimidating. This in a
option is week or less depending where you live.
the most popular for serious Stainless steel washers between your
sportsriders, amateur and steel
semi-professional racers bolts and aluminum inserts in the slider
alike as they provide the best also reduce potential corrosion problems.
protection for the money. One other thing
to consider Socket head cap screws offer the
when choosing these types of sliders is smallest footprint allowing for a thicker
where they will be mounted to.Many and
models of sportbikes offer several stronger slider dimensions and are
places to mount them, frame slider generally much more expensive then
manufacturers all have their personal regular
reasons for choosing the mounting hex-head screws. Nyloc lock nuts where
location applicable are another added safety
for theirs and many of them make that feature. True, these are all minor
choice for the wrong reasons. An example considerations in the overall scheme of
is things but
cost - a location that offers a two they all add up to the cost of
short bolt mounting location is cheaper manufacturing. One last thing to
than one remember is to
using a long through the engine bolt always try to use some form of thread
choice. The former being a much weaker lock compound like Loctite and to
location. If you own an SV650 you will properly
know what we mean. Another choice is the torque the mounting bolts to the
manufacturer's recommendations. If
use of a bracket so that cutting of the you're not
fairing is avoided - see below (Frame sure check out our torque reference
Mounted Frame Sliders-Through-Engine guide.CONCLUSION:Where does that leave
Bolts).Frame Mounted Sliders - you the consumer? Well, we all don't
In-DirectTo address some of the concerns want to think about the
owners may have about modification of the day when we will be able to justify the
purchase of frame sliders. The reality
fairing, some manufacturers have opted is that
for a design that allows for the slider as long as bikes have only two wheels,
to you can expect them to fall over sooner
mount onto an offset bracket that then or
mounts onto the frame. This offset later. Frame sliders are one of the
introduces a whole new set of variables surest and least expensive ways to ensure
into the mix. Depending on the degree of some
protection for the expensive or
the offset, impact forces now include sometimes irreplaceable parts of your
amplified torque stresses which will be bike. After all
applied some protection is still better than
to the frame mounting points. Offset none. Think about broken rear brake
brackets will need to be of beefier levers, gear
construction, but not so beefy as to shifters or even worse - punctured
stay intact during an impact while radiators or coolant bottles, when you're
severely miles
damaging the frame mounting points. from civilization. The rule is the same
This is often the most costly type of in our opinion no matter what you're
slider spending your money on - buy the best
configuration as most brackets require you can afford and don't be afraid to ask
ingenious CNC work and design. In some
situations employment of a bracket is a the manufacturer why their product is
calculated risk, in others it is just not better than the plethora of other brands
available out there. Any good
feasible. No cut sliders are attractive manufacturer will be very clear about
to most bikers so do your homework and what
ask differentiates their products form
the manfacturer questions before you buy others so that you will be able to make
them.Frame Mounted Frame the correct
Sliders-Through-Engine BoltsThe third purchase decision.Author is the
mounting option found only on certain manufacturer and distibutor for US based
models of bikes like the Suzuki frame slider and accessories
DL1000 Vstrom, TL1000S, SV650 and Ducati company.
models of bikes allow for use of the




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