Author |
Message |
Jhuppdog
| Posted on Tuesday, December 04, 2012 - 08:47 pm: |
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I am looking at getting a set of HVMP bar ends for my 2001 X1 and my 2008 1125R but I do not know what bar end mirrors will fit. Since the HVMP bar ends are slightly larger than standard bar ends I am worried that some mirrors will not work. DO any of you have these bar ends and bar end mirrors? What mirrors are you using? I use the 1125R for track days so I am hoping that with installing the HVMP weighted bar ends it will reduce some of the high RPM buzzing vibration in the grips. |
Sl33py
| Posted on Wednesday, December 05, 2012 - 05:31 pm: |
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I went with the rhino moto bar ends w/ slots for CRG mirrors. Love both (as much as you can love BE's). CRG's are really nice, but a bit $. http://www.rhinomoto.com/bar-end-sliders.html CRG's i have are the LS model (3") They also have smaller 2" mirrors. HTH - GL! rob (Message edited by sl33py on December 05, 2012) |
Sl33py
| Posted on Wednesday, December 05, 2012 - 07:10 pm: |
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and LS CRG's:
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Jhuppdog
| Posted on Wednesday, December 05, 2012 - 08:48 pm: |
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Do the rhino bar ends do anything to help dampen vibration? The HVMP bar ends are 14 oz. and are designed to help with vibration. |
Noobuel
| Posted on Thursday, December 06, 2012 - 02:11 am: |
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I forget who mentioned it (and am too lazy to search), but someone mentioned putting a few ounces of lead shot in a bag and putting it inside the bars. This is the approach I will be taking as it is cheaper than those weights, and I don't have an option to go with something like that due to the Oberon bar end indicator setup I chose. |
Hammer71
| Posted on Thursday, December 06, 2012 - 06:46 pm: |
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contact johnylunchbox through PM he can answer as it's his business. |
Johnnylunchbox
| Posted on Thursday, December 06, 2012 - 07:38 pm: |
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Well actually it's my wife's biz. The HVMPs are not specifically designed to be used with the mirrors. However I do know that our own gentleman Jon fabbed up some mounts. You might give him a shout. The idea of using lead in the handlebars is a last resort. The greatest effect on vibration is having the weight as far outboard as possible. |
Jhuppdog
| Posted on Thursday, December 06, 2012 - 08:02 pm: |
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Thanks for all the info. I had contacted your wife a while ago and she gave me the outside diameters of the bar ends. The Heavy is 1.44” OD and Extra Heavy is 1.485” OD. The CRG's look like they need a much smaller diameter. Not sure about Rizoma mirrors. I had a set of Rizoma's on a FZ1 and I loved em. Pricey but really nice. Johnnylunchbox - Is Jon an employee or is he forum member? |
Jhuppdog
| Posted on Thursday, December 06, 2012 - 08:08 pm: |
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SI33PY - did those bar ends help dampen any vibration in the bars? |
Sl33py
| Posted on Thursday, December 06, 2012 - 08:47 pm: |
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I didn't weigh them, but with the insert and rubber clamp force inside the ends - i think so! I also have the traction grips - so a few upgrades at the same time so hard to compare against stock and attribute which was the one helping reduce vibes. GL! rob |
Johnnylunchbox
| Posted on Thursday, December 06, 2012 - 08:59 pm: |
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Gentleman Jon is a forum member. I think he made an L bracket that fit on the 5/16" bolt that runs through the bar end. |
Zac4mac
| Posted on Friday, December 07, 2012 - 09:56 am: |
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Johnny I will argue the efficacy of lead shot in the bars over a solid piece farther out. The loose shot will dampen much more vibration than a solid chunk. The key is the shot must be loose in a bag so it can move a little. Physics Z |
Johnnylunchbox
| Posted on Tuesday, December 11, 2012 - 08:48 pm: |
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Zac, neither is a true damper. The bar ends work to change the resonant frequency of the bars. I still stand by my statement. It's much more effective outboard. Plus no toxic lead dust. Edit: Actually lead shot would probably provide a little damping as the vibration is converted to heat by the pellets rubbing against each other. It's main value would be the weight though, and weight outboard is mo' better than inboard. (Message edited by johnnylunchbox on December 11, 2012) |
Zac4mac
| Posted on Tuesday, December 11, 2012 - 11:57 pm: |
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Ever use a "dead blow" hammer? same principle but in reverse. The kinetic energy is dispersed among all the individual pieces AND multiple collisions. It WOULD be a wash if each piece of shot only had one collision with another shot, but that's not the reality. <edit> Also, the lead experiences elastic collisions since it is soft which eats away at more of the kinetic energy. Z (Message edited by zac4mac on December 11, 2012) |
Johnnylunchbox
| Posted on Friday, December 14, 2012 - 11:55 am: |
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Not saying the lead won't help. It will help, but it really isn't enough mass in the right place. A dead blow hammer has a pretty serious reservoir of lead in it. Also a dead blow hammer is not trying to mitigate the high frequency vibration that is likely to be producing by a running motorcycle. Apples and oranges. |
Zac4mac
| Posted on Sunday, December 16, 2012 - 12:28 am: |
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Actually Johnny, the dead-blow works by absorbing the very high frequency of an impact and its harmonics Off topic - I'm jealous of your location. I have close friends in Marlboro and have been blessed to see the Mohonk valley in both Spring and Fall...unbelievable beauty. (Message edited by zac4mac on December 16, 2012) |