Difference between revisions of "I want to install frame sliders"

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Someone posting under the nom de plume "Mibgebert" has actually implemented this design.  Here are the details:
Someone posting under the nom de plume "Mibgebert" has actually implemented this design.  Here are the details:

Revision as of 23:31, 14 December 2006

The short answer to the frame sliders question is "NO". If you're a curious type, dissatisfied with that beautiful, concise answer, then read on!

What frame sliders are.

The original design concept was to protect the really expensive bits: the engine casings and exposed parts of the frame. Here is a photo of a frame slider and a few examples of them installed where they are actually needed:

Frame slider.jpg

Slider 4 sv1000.jpg

Slider 2 Zephyr550.jpg

What frame sliders are not.

Some people have the misconception that they're designed to protect fairings. Often, quite the opposite is true. If attached incorrectly, the frame slider's mount can shift, causing cracks in the fairing. The racers, who originally started using frame sliders are least concerned with appearance of their machines. Compared to custom-made hard parts that they use plastics are cheap.

So, does the EX250 need frame sliders?

NO, it does not. Why? First, the EX250's frame is protected by plastic fairings. No part of the frame is exposed, and the engine does not protrude, so there is nothing to protect! Second, there are no good places to mount frame sliders. The only place that has been found so far is the coil bracket (durability questionable). You'd have to drill a big ugly hole through the fairing (the very thing you think you're trying to protect).

They look cool, and I still want them!

Some Polynesian tribesmen believe that beautiful bird feathers can also make a man look beautiful. The men pierce their faces and wear the colorful feathers like jewelry... Well, I've digressed here.  :) If you really want frame sliders on the EX250, they CAN Be installed. Jim Race did some thinking and sketching. Here is his design: http://jimrace.com/images/moto/EX250/sliders/design_dox.html

Someone posting under the nom de plume "Mibgebert" has actually implemented this design. Here are the details:

Mibgebert damper slider.jpg Mibgebert slider.jpg

Remember, that stock turn signals will come in contact with the ground first, so your frame sliders will be useless unless you replace stock turn signals with flushmounts first. Please note that frame sliders can pose danger if installed incorrectly. They can potentially bend your entire frame in a crash. The frame is designed to withstand certain forces, applied in certain directions at certain points. Load-bearing parts (e.g. engine mount points) of the frame are very strong, but other parts are weaker. If you simply bolt a frame slider to a random point on your frame, all the energy of a crash will be transferred through the slider to that point. Is the frame strong enough to absorb all that energy? Will it bend? Will your mount point break off? Remember, that EX250's frame was never meant for frame sliders, and the above mentioned designs are unproven. Think, before you install.

I want sliders to protect the plastic bodywork. If you are a new rider, then your best bet would be simply removing the upper fairing while you're learning to ride. Put them back on in a few months, when you get over the most common mistakes and will be less likely to drop the motorcycle. Here is a photo of BrianM's wife on a fairing-less EX250:

EX250 fairing removed.jpg

Other devices not to be confused with frame sliders:

Crash bars: Crashbars.gif

Crash cages (this IS designed to protect plastics):

Cage 1.jpg