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Shocking vibes.
Posted: Thu Feb 28, 2008 2:45 pm
by Cobbster
Hi all,
Took the 11S out today for a bit blast up the Northumberland coast and was shocked at the amount of vibes I was getting through the pegs. My bike has never been all that vibey and since I fitted Rapid dog bar backs they have all but gone through the bars.
After getting my head round how to balance the TB's with the twinmax Ive got them bang on, a quick check after my trip out and their still spot on through the rev range, so whats happening?.
Riding conditions today were good but breezy, about 16mph, bike performed well but a bit lumpy at tick over which it always has been, which leads to another question, at tick over is it normal for the bike to shake , ie mirrors wobble a bit?. Tick over RPM 1100.
Brain storm over, thanks guys.
Posted: Thu Feb 28, 2008 3:18 pm
by Black Knight
I get movment at tickover. Is quite mesmerising, could sit and watch it for ages!
Posted: Thu Feb 28, 2008 8:42 pm
by winger
How long has it been standing,how old is the fuel in it,and how far did you ride,my S over the years has been vibe free to a steam hammer,mainly to do with weather.
Posted: Thu Feb 28, 2008 9:08 pm
by Cobbster
Hi Winger,
The fuel is fairly new, two galls put in about a week ago mind you it was Asda's special, had no choice at the time, its stood about the same time but very little use over the winter, just a short run today, about 80 miles in 6°C temperature.
As I said the bike is usually not as vibey as it was today. I took the brass bypass screws out tonight for a quick butchers and they were pretty crudded up, cleaned them up and replaced them with the same amount of turns out as they had been.
Might be worth mentioning that the bike is a complete bog standard with the cat still firmly in place and no other tinkerings gone on.
Thanks, Cobbster
Posted: Fri Feb 29, 2008 2:20 pm
by The Teutonic Tangerine
I was reading about the rapid Dogs Bar Backs yesterday.
Question: As half way house solution is it possible to just fit the normal under the top clamp/ yoke bars above the clamp.
http://i152.photobucket.com/albums/s190 ... unting.jpg
If so has anyone done this
Did you need to change any cables or hoses
Did it raise the bars enough to make a difference
Thanks guys
Posted: Fri Feb 29, 2008 2:47 pm
by throttlemeister
Yes
Yes
No
Dunno, never done it myself.

Posted: Fri Feb 29, 2008 4:54 pm
by soggybottoms
If you move the bars above the yoke - the odds are that you will need new longer hoses if you have a non-ABS bike.
I've a set of Bar Backs and they are an excellent bit of kit but you get a bit of an unsightly tang showing (anti-rotation device sort of thingy)
They aren't in keeping with the looks of the S - IMHO.
So altho I have a set; they are on my shelf and I have a set of the higher bars on they're way.
Style over function
Do a search - there are many threads on this issue
Posted: Fri Feb 29, 2008 5:00 pm
by Cobbster
HI Teutonic,
When I fitted Rapid dog bar backs to my bike I took the chance to change the front hoses to stainless steel. Used a company called Vyxxn who made up a set of two for about £50.
The bar backs made a big difference for me, no more aching wrists or vibey hands.
Cheers, Cobbster.
Posted: Tue Mar 04, 2008 5:20 pm
by cc mac
I lifted my bars over the the top yoke after reading the instructions from other members on this forum (mine has ABS with the slightly longer brake hoses). It took about half hour to fourty mins to do the job and it's one of the best mods I have ever done to the bike. No weight on the wrists, lighter steering, easier to manouver in traffic, less vibes through the hands.
You might want to invest in a taller screen, I paid £70 for mine and it does the job fine.
Posted: Wed Mar 05, 2008 10:37 pm
by nab 301
cc mac wrote:I lifted my bars over the the top yoke after reading the instructions from other members on this forum (mine has ABS with the slightly longer brake hoses)..
I've just tried this recently and it's certainly different... Better in suburbia but needs a different screen at speed and I wouldn't mind more seat height also
