Thats one bad-ass free R1':flex:

 

Arno or Dave?

Either way you guys are so frikkin' lucky!! Free 09s! The rest of us have to cough up R165k!!! *just a touch jealous here* Is there gonna be an R-series Phakisa/Kyalami trackday sponsored by Yamaha SA again this year?

 

Arno, Dave's is the blue one.

Lucky, hmmm, we've worked really hard to get to this position, Yamaha get their exposure through us and the California Superbike School, and also take their pound of flesh when they need help with any event (which we then do for free). It's a happy, mutual arrangement we've got with them.

There's talk of another R-Series day, but not finalised yet.

Unfortunately they are expensive here, thanks to the strong Yen, but man it's worth it.

Who is this????

 

Great pics,
What fairings are you running on the bike (they look stock, apart from the bellypan).

 

Yes, all stock fairings except for the belly pan, which is a fibreglass unit, that fitted with minimal work.

 

Who was the manufacturer of the bellypan?

 

It's supplied by Omega Fibreglass, here in Johannnesburg, but looks the same as the fairings used by the BSB teams in England.

 

Nice pics!!

 

wow, you got the best cans i've seen on r1 09!
they fit the best for me!
not a so closed V!

 

oops, I put these pics on the wrong thread, should have added them here, from last Sunday at Phakisa...

http://www.youtube.com/watch?v=Fgd0EQdV_oo&feature=channel_page

 

oops, I put these pics on the wrong thread, should have added them here, from last Sunday at Phakisa...

http://www.youtube.com/watch?v=Fgd0EQdV_oo&feature=channel_page

nice pics... u really worked that rubber 'eh... like nice sticky grip tire. what brand is it btw?...:thumbup

 

That's some nasty rebound tear you got there on the rear. Have you changed it from how it was set when delivered? If so, what did you change and did you set sag front and rear?

 

That's the front tire. Sag all set to my weight with my riding kit on. The front's done about 1000km on the track, so I figured it was just used up. It only looked like that at the very end of the day, when I also equaled my best lap time at Phakisa. So looking forward to going back with new rubber and improving.

Any ideas what would cause the front to do that, other than it just being old???

BTW, the rear tire wears beautifully, no tears, just nice & smooth

 

Neato !!

 

nice!!!

 

Nice pics and clip!

 

:rock:rock

 

You are close on the sag nummbers but I would personally set it up at 40 mm front and 30 mm rear for rider sag. I check static but rider is most important. If the difference is much more than 10 mm then you have too much stiction. Nonetheless, you should back out of the rebound a bit. That's too much! You might get the front updated with Oglins new big piston kit with a half less stiffness. For example if the bike comes with a 9.5 then you would get a 9.0 but you will need to verify this first. You might do the same with the rear shock spring. You are close but I think you are over-compensating with the rebound.

 

The difference in static to total sag isn't due to stiction, it's a function of spring rate. The difference between pushing down on the forks and releasing, and pulling up then releasing shows the stiction.

I think the spring rate sounds fine with those sag numbers...

 

Yeah, that 1 second return sounds waaayy too slow. Open it up until it passes the static sag position on the way up and resettles down. Then slow it down little by little until it stops the over-the-top travel.

Too slow on the rebound causes way more problems than too fast.

 

ok, so basically it's packing down the way it is now???

 

Yes, this is why I said to check the rebound in the first place. There is a general concensus here.... I assume you have your tires properly inflated, etc but I still think you have too little sag. 40 mm front 30 mm rear is ideal and you should not want to use up all of your travel at the front. You need to leave about 10 mm still unused at the bottom of the fork.

 

I think the tires are tearing because you are obviously not using warmers to heat the whole tire, thereby causing it to shred away from the inner carcass. Try using warmers and if you indeed are, check the tire temps before and after a session. Your warmers might not be hitting the appropriate temps.

 

Even without warmers all together he shouldn't be seeing that kind of tearing. I few laps in and he should be up to temp. Unless it he's doing trackdays in sub 50* weather...and in that case, warmers aren't helping you anyway. hahaha.

Again, I say you check your tire pressure COLD and then right off the track and observe the change. You should see an increase more than 3-4psi. That looks alot like cold tearing

http://feelthetrack.com/tire-wear.html

 

fiveoh, I'm not going to get into a pissing match with you on here. I gave the guy the advice I use and I give to every other person whose bike I set up. I'm plenty fast and I use this setup advice myself. I learned a good deal of this setup from Dave Moss of Catalyst Reaction and his advice has served me well. Looking at his tire I see rebound tear. What do you see? I personally think he should have a bit more sag and not use all the fork travel available. If you have a better idea, share it but don't criticize my advice....maybe it's you that is misguided...ever think of that?

 

I agreed with the rebound being out of adjustment.

He said himself that he is nearing full travel already so why would you have him increase the sag and drop spring rate?

 

Good point. I don't know where his settings are but he said he was 180 lbs with gear right?

 

Whoa there fellas, no need for handbags at dawn

To go through all the suggestions/comments. Tire were hot, used warmers and it was a hot day, so I don't think it's the cold tear.

I did check the rebound again, and I agree it did come back too slow, so I've taken back 4 clicks to let it rebound quicker.

Using all the travel, there is about 10mm left over...

You're most kind, 180lbs, .... try 235lbs, and no fat jokes please....

I'll be at Kyalami tomorrow, new tires, so let's see how it goes....

 

Oh well I stand corrected. I must have been high that day. You will need to go up a spring rate most likely. Can you tell me where the spring preload is currently as well as rebound and compression front and rear?

For some reason I thought you were 180 lbs but I help a lot of people on several different forums so I must have my hairs crossed. For 235 you will most certainly need a stiffer spring but I don't know what the spring rates are on the 2009 R1. I do some checking around....

Anyone else know? I know Ducati's 1098 is 9.5 N/mm and 80 N/mm at the rear, which is a weird combination. I am 205 with full gear and I have gone to a 10.0 N/mm front with reduced offset triples. At the rear I went to a shortened TTX with 100 N/mm spring and a flat linkage...

With my '04 ZX-10R I went with a 10 N/mm front Ohlins spring and a PR46XLS rear shock using stock linkage and 100 N/mm spring.

Here is an older picture, I need to get one up of the newly prepped 1098...

 

Ok, I did some digging and I am still not sure what the R1 has from the showroom, however, I have found what is available from Yamaha's Racing Division.

Fork Springs
- 9.5 N/mm P/N: 14B-23141-85
-10.0 N/mm P/N: 14B-23141-80
-10.5 N/mm P/N: 14B-23141-75
-11.0 N/mm P/N: 14B-23141-70

Shock Spring
- 98 N/mm P/N: 14B-22222-80
-103 N/mm P/N: 14B-22222-75
-108 N/mm P/N: 14B-22222-70

These parts are of course for use with oem fork and shock. You would have to find out where you can order these YEC Racing Parts and then get a shop to swap them out.

As a rule of thumb a 5 k/g difference would be used for a 20 lb difference in rider weight. I can't tell you where I think you will need to be until I find out where your preload is and what the stock springs are... But I'll find out those details soon enough!

-Brian

 

According to the full service manual the front fork spring is 9.6 N/mm and it uses 117 mm of fork oil and the rear is 98.10 N/mm.

 

Weight distribution: '09 is 12kg heavier on the front compared to the '07.
Whereas i used 0.925 on the '07 i had insane chatter all the way through with the stock 0.95 springs in the fast corners. Put in 1.025 now, testing on monday. Onboard cam mounted in the meanwhile too
Cross plane makes it even easier to slide around compared to the '07.
Grunt coming out of the turns s sweet, she runs hot though, putting on a bigger radiator soon.