Handlebar internal weights

[Constant Mesh]

While scanning the parts diagrams for a ST1300 I noticed that there are long cylindrical weights supported by rubber spacers in each of the bike's handlebars. There are also external weights at the end of the handlebars.

https://fiche.ronayers.com/Index.cfm/Module...AR_/_TOP_BRIDGE

It also appears that the handlebar mountings may include some vibration absorption above the forks.

Does the FJR include internal weights in the handlebars? I don't see any breakouts on the parts diagrams.

https://fiche.ronayers.com/Index.cfm/Module...NG_HANDLE_CABLE

 

[chrisflock]

I had my bar end off this weekend (trying to get the bar end in a little bit because there was a gap).

I didn't see any weight inside, what I did see what a bit that the screw holding the bar end on threads into. That was embedded in rubber, which in turn was inside a metal ring that must have clipped in in some fashion.

The bar end itself is a weight, though not a very heavy one. You can put on a heavier one to reduce vibrations. I've also heard of people putting lead shot into handlebars.

 

[RZ350]

Constant Mesh,

I know the bars are different between the Gen I and II but I believe both are solid cast aluminum items. From the part illus. page, it appears the ST has a cast lower section and a separate tubular pipe (steel?) where the grips slide on. I have seen many others constructed this way. On the Gen II, I think only the very end of the bar (1" deep ???) is hollow to form a recess for the rubber mounted nut that holds the bar-end weight. I say this because there are some holes drilled into the 7/8" section of the FJR bars to index the switchgear and they don't punch through to a hollow void, yet are about 1/4" deep. Perhaps Gen I is similar.

Thanks for showing those ST weights - I might be able to use those with my custom bar set-up.

 

[na1g]

Yep, the ST1300 has rubber weights inserted into the bars, plus bar-end weights that are bigger than the FJR's. Also, the entire bar assembly and center clamp is rubber mounted. You can flex the whole thing just a little by grabbing the bars and twisting. It's not noticeable while riding, but with all that vibration damping, it's no wondr the ST is so smooth.

Owners of the old C10 Concours used to fill the bars with lead shot and silicon rubber to damp the vibes. Helped some.

BTW, heavier bar end weights don't eliminate the vibration, they just change the frequency so it is less annoying. Manic Salamander (make of bar end weights) had a good explanation on their website. They make some nice looking and effective weights for the FJR.

pete

 

[Surly]

Hi All,

after having installed a Throttlemeister Cruise Control, I can say that there is an internal devise that the bar end weight is srewed into. On installition the stock devise is removed and replaced with a heavier stainless steel one with three rubber "O" rings. The Throttlemeister is available with a heavier bar end weight which I chose, this along with release of the throttle return spring by one rotation seems to have worked a treat to eliminate all bar vibration. You also have a Cruise Control which gives relief on your right hand on long trips.

Hope this may help.

Regards

Surly

Upright not Uptight