My 955i Tiger build. - Triumph Forum: Triumph Rat Motorcycle Forums
Tiger's 885i & 955i - Mods & Workshop Workshop and technical talk for the 885i & 955i Tigers

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post #1 of 21 (permalink) Old 08-13-2019, 04:21 AM Thread Starter
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My 955i Tiger build.



I thought Iíd share with you guys a journey Iíve been on for a little over a year now. I hesitate to call it a build because itís more like a collection of small mods and sorting than a build. Iíll keep updating as time allows but it started here...

I met a guy at a BBQ here in Queensland and he told me a lot of his mates had given away sports bikes to get Adventure bikes due to the fun factor and bad backs. My back wouldnít allow a ride longer than a couple of hours so I started looking.

I am a mechanic by trade so went for something I liked the sound of and the look of. Everything else is fixable or changeable. BMWís were instantly disqualified. I always loved the unique look of a 955i tiger. So I waited until I found an unloved one. I could see the suspension travel was much more than many other road biased adventure bikes and this was a big deciding factor. The first adventure bike I test rode was this one. I fell deeply, madly for it. The guy was a headmaster. I could see his ability to understand maintenance was about as good as my understanding of how to teach complex algorithms to pimple faced kids who didnít want to be there. It was old, scratched and clearly left for dead.
Iíve owned 8 new cars and two new bikes and hate the fact I bought them new and I was responsible for their deterioration. Iíve always preferred to buy old and make better than buy new and slowly scratch, dent and watch it age. So after an exchange of cash my flawed beauty was mine.

So began my quest for slow evolution until I was happy. I still have a few things left but itís close.

The first mod was to eliminate the wind buffeting. It cost me less than ten Aussie dollars and worked a treat. I went from my head shaking so badly I could hardly read street signs to a really stable and smooth air space.

Iíll post up pics and an explanation later.

Thanks for your time.


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post #2 of 21 (permalink) Old 08-13-2019, 05:43 AM
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Looking forward to this one.........

Bike looks great by the way
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Safe riding.
Regards,
Graeme.
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post #3 of 21 (permalink) Old 08-13-2019, 09:42 AM
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Definitely looking forward to the next instalment.

I bought a fairly high mileage 2006 version 12 months ago which, according to the previous owner was well looked after, in great condition & needed nothing doing to it. Decided to go for an Adventure bike as the back could no longer cope with my Blackbird) & like you, I discounted BMW's after testing one.

in 12 months, I've replaced both tyres as the ones it had were squared off & wouldn't hold pressure for more than 48 hours. The steering was a little off, especially when going round roundabouts. When I replaced the head bearings, the lower one was seized solid. The air filter was well past its best, as were the spark plugs. The oil was desperate for a change. The clock & trip meter didn't work (cosmetic I know but indicative of the love & care the previous owner lavished on it), the power socket didn't work (broken wire), an indicator lens was cracked (again cosmetic, but it mattered to me) and both front and rear calipers needed rebuilding.

Now all that has been sorted and I've added a clear spoiler to the top of the screen,, I'm starting to look at what improvements I can make. I've just ordered a USB power outlet for a satnav & camera, I'm also looking to get a sheepskin seat pad for the longer journey.

Unlike your's, mine's more for road use as we don't have quite the same geography as you do, although I do have duel use tyres (have you seen the size of some of the potholes we have in our roads in the UK?).
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post #4 of 21 (permalink) Old 08-13-2019, 07:29 PM Thread Starter
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My 955i Tiger build.

As I said above the wind buffeting on this bike was crazy. I was coming back with headaches from the buffeting so I spent hours reading about others experiences. I started taking notes about brand names and the amount of positive and negative remarks. I found an epic post, canít remember where. Might have been here? Anyway it was like 10 or 15 pages long. So I started reading. Again no clear solution and Iím stuffed if Iíll spend $200 a pop with no clear winner.

Then I read a comment from a US aeronautical engineer mid way through the thread explaining the physics and how he fixed it. It was like his comment was invisible. No one remarked, no one commented. It was so simple, so I tried and it was transformational.

I bought 4 x 85mm screws in number 5 size and a small section of 6mm ID fuel hose and cut random lengths of fuel hose. Using the fuel hose as a spacer. I used smaller spacers on the lower two screws and longer on the top two to stand the screen up slightly and the buffeting stopped. I had to use a hair dryer to help ďde-stressĒ the screen a little That was about a year ago itís been great since in fact I rode through 50-80 kmh winds from an ďarctic blastĒ we had last weekend and it was great.

The theory was that the buffeting was air rushing to fill the void behind the screen creating turbulence. He said that fitting bigger screens just moves the buffeting further back or higher or lower. Putting in spacers helps to fill the void which stops air spilling around the sides.

I hope this helps someone.






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post #5 of 21 (permalink) Old 08-14-2019, 06:02 AM
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That is so simple, I'm surprised it's not being shouted from the rooftops.

My cheap (£12.99 eBay) screen spoiler does the job reasonably well, but I'm going to try this to compare the two solutions.

With the screen, there's still a little wind buffeting and depending on which helmet I use still a fair bit of wind noise.

I've seen wind baffles on buildings use this principle to good effect too.
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post #6 of 21 (permalink) Old 08-14-2019, 06:45 AM Thread Starter
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Quote:
Originally Posted by Lee337 View Post
That is so simple, I'm surprised it's not being shouted from the rooftops.



My cheap (£12.99 eBay) screen spoiler does the job reasonably well, but I'm going to try this to compare the two solutions.



With the screen, there's still a little wind buffeting and depending on which helmet I use still a fair bit of wind noise.



I've seen wind baffles on buildings use this principle to good effect too.


Iíd love to hear your feedback.


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post #7 of 21 (permalink) Old 08-14-2019, 06:03 PM
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Palmer stuff works well
http://www.palmerproducts.co.uk/
Don't do like I did, buy at least their Medium Screen, not the small one.

Right now I'm using an MRA raised up on Allens with an adjustable spoiler on top.
Same basic principle aside from the top spoiler.

I never tried raising the stock one up on posts but I'll bet that works really well, too.
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post #8 of 21 (permalink) Old 08-15-2019, 05:08 AM
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Quote:
Originally Posted by Lee337 View Post
That is so simple, I'm surprised it's not being shouted from the rooftops.

My cheap (£12.99 eBay) screen spoiler does the job reasonably well, but I'm going to try this to compare the two solutions.

With the screen, there's still a little wind buffeting and depending on which helmet I use still a fair bit of wind noise.

I've seen wind baffles on buildings use this principle to good effect too.
I think it's not being shouted from the rooftops because it seems different things work for different people. Wind buffeting on a 955 Tiger used to be the biggest talking point on the forum, and the thread devoted to it really covers everything:

https://www.triumphrat.net/tiger-cha...-how-much.html

I know what worked for me, after trying absolutely everything:
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Safe riding.
Regards,
Graeme.
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post #9 of 21 (permalink) Old 08-15-2019, 02:25 PM
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Well, I had a spare hour this afternoon so did four back to back comparisons along the same route and at as near as I could, matched the speed. The conditions are dry with a 30mph wind. The circuit I rode although short had the wind coming at me from all directions. I wore the same helmet without (unusual for me) earplugs.

First up was my standard screen with an adjustable spoiler on top, my usual set-up. A small amount of turbulence was felt around 70mph & it was a little noisy.

Second, I took the adjustable spoiler off. there was turbulence from around 50mph upwards, steadily getting worse to around 70mph. Not nice.

Third, I put 15mm spacers at the top and 17mm spacers at the bottom. This reduced the turbulence compared to the standard screen but wasn't as effective as the standard screen with spoiler.

Finally, I put 25mm spacer on the top and 17mm spacer on the bottom. This surprised be as it seemed to be the best of the four tests. It didn't look pretty but the turbulence and wind noise was definitely reduced.

I think when I have more time, I'll tart it up a bit. You'll probably notice also I used a different screen. I had a solid black screen and used that for my testsas I wasn't too concerned if it cracked when trying to get the fittings in the right place, but when I get round to it, I'll use my standard screen & give it the hair dryer treatment. I just have to wait for the other half to go out first.
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post #10 of 21 (permalink) Old 08-15-2019, 05:02 PM
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Lee........you're right, it doesn't look pretty, lol !!

But it's nice to see someone get off their @rse and actually experiment with something homemade that hopefully solves the problem. That's what I had to do, and mine works a treat
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Safe riding.
Regards,
Graeme.
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