Grip trimming

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exskibum

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First, note that I have always HATED trimming rubber, due to the uneven, shoddy results.

I've probably done this for throttle locks three times now (every one requires mods), and have finally found a way to trim rubber grips that works pretty well and gives a clean result. (I just installed a Vista Cruise and the hilt of the OEM grip is too tall, so it needs to be trimmed, but so do most aftermarket grips.)

I have some "hook blades" for one of my 3 or 4 utility knives (aka "boxcutters"), which I use for almost everything, having once been a drywall taper. I bought these blades for use on my composite shingle reroofing project a couple years ago. So . . . I decided to use these hooked blades to cut down the stock grip I removed to facilitate a clean Vista Cruise install.

After removing the grip, I used a 32 mm socket and a red Sharpie to trace a circle on the end of the grip. Then I sat in the sun and sliced into the shank of the grip with the hook blade, rotating it to keep the blade slicing evenly on the line. I did the same thing on the butt end of the grip to shorten it appropriately. It came out much cleaner than any utility knife cut in rubber I've ever made. Then, with my trusty rubber sanding block loaded with course emery cloth, I discovered that it does a great job of smoothing the soft rubber of the grips, taking out start/stop marks and generally abrading the rubber into something that almost looks like it was made that way!!!

Finally -- I'm not going to shy away from these rubber trimming projects anymore due to fear of hideously lame looking results.

 
Thank you

I'm going to be installing a vista cruise on my 05 (stock grips) and this will help to keep the "shoddy" monster away.

Toophast

 
The bmw ribbed grips didn't need any trimming for my Vista Cruise and are more comfortable than Yamaha's rock hard grips.

 
Thank you exskibum for this tip. I had to trim the Pro-Grip off road grips that I am using and it was a real PITA! These are gel grips. Any experience trimming gel grips? I'm not sure I know what a hook blade is, but I will look.

For those that use a Dremel, how do you keep a straight line? Any problem with the cut-off wheel grabbing the rubber?

 
Thank you exskibum for this tip. I had to trim the Pro-Grip off road grips that I am using and it was a real PITA! These are gel grips. Any experience trimming gel grips? I'm not sure I know what a hook blade is, but I will look.
For those that use a Dremel, how do you keep a straight line? Any problem with the cut-off wheel grabbing the rubber?
Haven't tried it on gel grips, but this method would seem to work, since you have an even pressure pulling the hook blade through it, but I'm not sure how well the emery cloth would work polishing the job on the gel. I had the same question you had re: using my dremel, so I went with what seemed easiest and most controllable. BTW, I found it easiest to control by holding the grip with a short piece of pipe (or in my case, a Helibar clip-on from a Blackbird) inside the grip just to make everything stable in my hands while I sat on a stool doing the cutting.

Hook blades:

Stanley brand utility blades, "Large hook blade" PN 11-983:

https://www.absolutehome.com/web/catalog/pr...de=12-7271547-2

 
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actually I used a sanding wheel bit on my dremel. Here's a pic. switch to BMW grips w/vista cruise:

63828582-M1.jpg


63828577-M1.jpg


The sanding wheel cut a smooth edge all the way around. Just a visual as I sanded to keep it round as I went--nothing real difficult, looked factory when I finished.

 
I just slide the grip back on the bar a bit, and then add a couple of stainless washers to space the bar end back a little. Works great, and no trimming needed. And as Velvet Fog said, the BMW grips are MUCH better than the stock Yami ones.

 
I trimmed some for Rick-in-Sac by tracing the diameter then cutting with some large shears. I finished off by using a belt sander held stable, upside down on the workbench (100 grit) and "rolling" the trimmed edge of the grip against the moving belt. Burnished and finished and looks pretty good.

 
NEP used to make a real nice throttle lock that was thin and cheap ($10) and worked real well. I haven't put one on the FJR yet, but I plan to. Never had to do any trimming on other bikes to use them.

 
or, could you take a 2 inch pipe and sand the one edge down to a sharp edge, slide it over the grip stand them on end on a piece of wood and give it a good whack with a mallet. The sharp end of the pipe should cut right thru in one whack.

Glenn

 
NEP used to make a real nice throttle lock that was thin and cheap ($10) and worked real well. I haven't put one on the FJR yet, but I plan to. Never had to do any trimming on other bikes to use them.
I have the NEPs on my Blackbirds.

 
Wire wheel on a bench grinder. Didn't leave wire marks like you would think, did a nice job and was easy to modulate with pressure against the brush for degree of removal. Turned out real nice on both Tacki's and the Beemer grips.

 
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Dremel with one of those stone wheels. Be warned, though, do it outside, the rubber dust gets _everywhere_.

 
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