My Hand Went to Sleep

Hotshoe · Post by **Hotshoe** » Tue Sep 21, 2010 1:40 pm

I hear you on the age factor Davomoto.
In the short time I've been riding again I've come up with a couple of things like the gloves to offset some of that without appearing too wimpy.
It's all worth it when I hear those scrambler pipes snarl!

Snakeoil · Post by **Snakeoil** » Tue Sep 21, 2010 1:57 pm

mooney1el wrote:It is a Scrambler, so I don't think there are any bar isolators, they mount directly to the triple tree upper; or maybe I am missing something?

Yes, you are right. My mistake. No isolators. Confusing my CL with another bike I recently disassembled.
regards,
Rob

mike1969 · Post by **mike1969** » Tue Sep 21, 2010 9:59 pm

Kuryakin (or however the hell you spell it) has iso grips for 7/8 in. bars. Have them on my Goldwing.
I don't need them for vibration but they sure are soft and comfortable.

Snakeoil · Post by **Snakeoil** » Thu Sep 30, 2010 10:00 am

Did something last night that I thought fit this thread. I took my CL77 out for a spin trying to diagnose a strange noise I get under certain throttle positions. Rode it quite a bit and decided I need to pull the air filters off so I put it away for now. Night was nice so I decided to take my '76 Bonnie out for a spin. What amazed me was after riding the CL, my Bonnie felt almost as smooth as an electric motor. Anyone who has ridden a vintage Triumph knows that they vibrate. Not compared to the CL77, that's for sure.

So I'm in agreement here with Dave in that you are perceiving increased vibes, but in reality, it's just the change in relative vibes between modern bikes and your CL.

I still cannot get over how smooth my Bonnie felt last night.
regards,
Rob

brewsky · Post by **brewsky** » Thu Sep 30, 2010 11:54 am

BB's, buckshot, or Barsnake???
Haven't tried any myself, but they have been out there for this problem for a while.
http://www.barsnake.com/

Snakeoil · Post by **Snakeoil** » Thu Sep 30, 2010 1:38 pm

brewsky wrote:BB's, buckshot, or Barsnake???
Haven't tried any myself, but they have been out there for this problem for a while.
http://www.barsnake.com/

All those devices do is detune the bars or provide a means to slow down their ability to amplify the vibes. You can make your own if you want to. Just put shove a cork into the bar end about 6 or so inches and then fill it up with lead shot. You could even melt the lead and pour molten lead in there to make a slug. It's just a hidden version of bar end weights. It will help to some extent, but so does putting your hands on the bars. That's a form of damping action as well. I suspect the stuff they sell works great on an instrumented bar with no hands on it. Bar without weights and with weight should show differences if in nothing else than the velocity of the vibes. Displacement might be less as well. But the bars are still transmitting the engine vibes because everything is bolted together solidly. So when you put your hands on the bars, the tigher you grip them the better the bars tranmit the vibes to your hands. If you instrument the bars and do a hands on, hands off comparison, I'll bet you find that the velocity changes are just about the same as the weights provide. So that means the remaining vibes in the bars, which are the pure engine vibes are still being transmitted to your hands.

Here's an example that is a exaggeration. Take an air hose and let it loose. It will flop around like fish. If you hang a heavy weight on the end, it will still flop around, but not as fast. If you hold it in your hand, it will stop completely. But your hand still feels the force of the air leaving the hose trying to move it. Your hand is connected to you and you are just a much larger weight keeping it from flopping around. Same thing is going on with the bars, only the force driving them is an oscillating force and not a constant force like the air jet.
regards,
Rob