Bar End Weights ... necessary ?

[HerrFlick]

two 550cc pistons going in opposite directions?

I'd worry a lot more if they were going in the same direction!

The fact they are offset (looking from above) is the main problem.

Not sure about secondary vibration, that's a tricky one.

A lump of lead bolted to each cylinder head would help a lot. Only problem is I haven't found an aesthetic way to do this.


Being quite anal with throttle butterfly synching helps a lot. I've just finished synching mine and reduced the harshness by a goodly amount up to 4000 rpm.


CHeers

[kfrogzx7]

Well, test rode my barend weightless R11 down to the pub last night, took in an assortment of roads/ speeds and initial impression was that vibration was not noticeably increased. I have just very carefully balanced the throttle bodies too btw, but anyway so far I'm inclined to leave the weights off and see how it goes longer term.

[Tapio]

Sometimes changes like this doesn't show difference until many hours of riding.

On my K100, I have those grips that look like the tread pattern on a rib tire.
On rides around town, they are perfectly ok. But after 4-5 hours of saddle time, I find that they are slightly too big for my hands. At every redlight i'm doing this finger exercise, like a concert pianist does before he starts doing his act. Never had this problem with the BCR.

Anyway, there's a way of having the bar end weight without having that lump of metal at the end of the bar. You simply put it inside the bar! Zinc has a density close to iron.
Go to your closest marina to find a good sacrificial anode. They come in all shapes and sizes.
You probably won't find an anode that fits the ID of your bar, so you have to turn it into press fit diameter in a lathe.
I understand that that most folks don't own a lathe, making my input irrelevant to them.

[Corvus]

...... Zinc has a density close to iron. .....

I never knew that! Mind you, I've never had cause to look! But thanks for the tip. It's a good one.

No lathe? Determination, some decent files and emery strips would get the job done I reckon! How does it "machine"?

Cheers.

[Tapio]

I don't know, since i've never machined zinc. But it's a very soft metal so it shouldn't be difficult.

I can't post my pic, but here's the adress:
https://scontent-cdg.xx.fbcdn.net/hphot ... e=55B58C9D

No1 should be a good anode for this.

[kfrogzx7]

Sometimes changes like this doesn't show difference until many hours of riding.

On my K100, I have those grips that look like the tread pattern on a rib tire.
On rides around town, they are perfectly ok. But after 4-5 hours of saddle time, I find that they are slightly too big for my hands. At every redlight i'm doing this finger exercise, like a concert pianist does before he starts doing his act. Never had this problem with the BCR.

Anyway, there's a way of having the bar end weight without having that lump of metal at the end of the bar. You simply put it inside the bar! Zinc has a density close to iron.
Go to your closest marina to find a good sacrificial anode. They come in all shapes and sizes.
You probably won't find an anode that fits the ID of your bar, so you have to turn it into press fit diameter in a lathe.
I understand that that most folks don't own a lathe, making my input irrelevant to them.

Aren't the bars solid ?

[Boxermed69]

No. 1 looks like a bar end weight

Mike