2006 Daytona Track-day Build

[Schramm]

So you're saying you like the the 190 more than the 200? If so, I think we are saying the same thing.

I like it because it's easier to flick and turn in. Loudon doesn't have a lot of hard drive at high lean angle corners (that I've noticed anyways) so the benefits of my 200 are gone, leaving only the crapping turn in and flick-ability. Is that what you were getting at?

[JettaJayGLS]

I like it because it's easier to flick and turn in. Loudon doesn't have a lot of hard drive at high lean angle corners (that I've noticed anyways) so the benefits of my 200 are gone, leaving only the crapping turn in and flick-ability. Is that what you were getting at?

Yes, I am saying I would prefer a 180 over a 190, which is why I want to switch to the 180.

[Trouble]

Last winter I picked up an '06 675 for a track day instructor bike. Love the bike. It was basically stock. Before I rode it I found a good deal on Woodcraft rear sets so I bought them. In otherwise stock trim I rode it for the first half of the season. It was fun but definitely twitchy. I had Kates do the front suspension and add Attack triples late in the summer. It made a world of difference in the handling of the bike. It's noticeably different turning in and more settled mid corner. I was much more confident with the bike although I'm sure a portion of it was psychosomatic. Anyway, this year I'm looking forward to installing track plastics, sliders and hopefully a steering stabilizer and rear shock.

If you're doing a Tony's day you're welcome to try it out.

[JettaJayGLS]

Last winter I picked up an '06 675 for a track day instructor bike. Love the bike. It was basically stock. Before I rode it I found a good deal on Woodcraft rear sets so I bought them. In otherwise stock trim I rode it for the first half of the season. It was fun but definitely twitchy. I had Kates do the front suspension and add Attack triples late in the summer. It made a world of difference in the handling of the bike. It's noticeably different turning in and more settled mid corner. I was much more confident with the bike although I'm sure a portion of it was psychosomatic. Anyway, this year I'm looking forward to installing track plastics, sliders and hopefully a steering stabilizer and rear shock.

If you're doing a Tony's day you're welcome to try it out.

Thanks John.

I, mean this is just further support of what I've been hearing...the triples are worth the money. What did Kates do to the front? Aftermarket or OEM parts?

Also, a couple questions for you and Paul. What size tires are you running? I'm guessing you both are on Pirellis. John, anything done to the rear shock or is it completely stock?

[island boyeee]

Your research on the rear suspension is incomplete. Even with the proper spring, the suspension is still progressive. There's no way to change that other than changing the linkage. Yes a lighter spring will help the bike be less bouncy, but the spring rate is still going to increase at a greater rate once you move into the 2nd half of the travel. This is where the plates come in. It will slightly change what the proper spring should be, but that's because it will be relatively softer in the higher travel spectrum.

[Mgiossi]

After running tuned but stock suspension for afew years on the track I spring for the triples, a penski rear shock and penski internals in the front. Pete set everything up for me and it made a world of difference. The bike turns in amazing and holds the line like it's on rails with great front end feel. Made all the difference and I would def suggest starting there

[JettaJayGLS]

Your research on the rear suspension is incomplete. Even with the proper spring, the suspension is still progressive. There's no way to change that other than changing the linkage. Yes a lighter spring will help the bike be less bouncy, but the spring rate is still going to increase at a greater rate once you move into the 2nd half of the travel. This is where the plates come in. It will slightly change what the proper spring should be, but that's because it will be relatively softer in the higher travel spectrum.

I read that even with the plates and shimming the rear to regain the lost ride height, you still need a longer dog bone in order to have a truly linear motion.

[Paul_E_D]

Very few bikes have linear linkage. I think this thing got a little blow out of proportion. A linear link leaves you with a LOT of shock tuning as you WANT it to get progessively harder to move as the suspension compresses. Sheesh.

[island boyeee]

Yes I never said it was a complete fix, simply a cheap bandaid.

Why would you want it to be progressive on a non-street bike that won't be carrying a passenger? The spring itself is already progressive, the linkage doesn't need to add to that.

[Trouble]

Thanks John.

I, mean this is just further support of what I've been hearing...the triples are worth the money. What did Kates do to the front? Aftermarket or OEM parts?

Also, a couple questions for you and Paul. What size tires are you running? I'm guessing you both are on Pirellis. John, anything done to the rear shock or is it completely stock?

My front was rebuilt and revalved. Penske compression and rebound kit, K-Tech springs.

I'm on 120/180 Pirelli Diablo Rosso Corsas. I'm assuming the rear shock is probably bone stock and most likely hasn't been serviced ever. Yet...

[JettaJayGLS]

Any idea if 13/14 woodcraft rearsets will fit on the first gen?

[Paul_E_D]

Not sure at all

[JettaJayGLS]

Woodcraft Race Rearset Kit Triumph Daytona 675 R 2013 2014 Black CFM Racing | eBay

I'm tempted to buy at that price and find out for myself...

[JettaJayGLS]

So I got some more info on the bike from Q.

-Forks are fresh but stock from early 2014 season (ohlins fluid)
-Rear shock is not fresh (last refresh dates back to 2011) and also stock

Looks like I should probably ship the shock out to GMD for a re-fresh and also grab the correct spring while I'm at it. I'll run the front as-is for now, planning to pick up the triples when I can.

[Jim]

maybe it'll help you give better hugs too

[island boyeee]

does he know what air gap was put in the forks? for your weight, you're going to want something in the 100-110mm range based on what research I've read from Dave Moss. I think Pete did more than that in my forks. Hard to tell a suspension guy to do what another suspension guy recommends...

[JettaJayGLS]

Not sure at all

Researched showed they will fit, only difference being the mount for the low exhaust on the newer models. I bought em. Pretty pumped on that pick-up.

[JettaJayGLS]

So the bike is coming along, but more importantly, it will be hitting the track this Saturday at NYST.

I did some work on it Sunday night, and came to realize that the front Conti slick has 2 big awkward slices in it. I have never seen this in a tire before and it has me pretty concerned. I was going to replace them anyway, but was hoping to run this first event AS IS.

I think these are my following options:
-Find a front conti take-off just for this track day
-Get a set of pirelli take-offs and just swap the front for now
-Get a set of 180 pirelli take-offs and swap both the front and rear (requires removal of the ride-height spacer in the rear)

Thoughts on best course of action? I completely forgot to take a picture of the slice in the tire, but maybe I can get my little brother to send me one so I can share.

[Paul_E_D]

FWIW, all brands have seen this issue at some point. The tire guys will tell you to go ahead and run it. It doesn't seem to get worse of cause any issues. But confidence is everything in this game, so do what makes you most confident.

[JettaJayGLS]

If the tire dealers tell me to run them, when they could just as easily scare the shit out of me and force me to buy new tires, then I will run them.

I'll try to get a picture though to make sure we are talking about the same thing.

[Paul_E_D]

Well, I went ahead and installed my more "linear" link for testing. This is a revised plate and longer dogbone setup. It is not truly linear, though, because you want some rising rate for bottoming resistance. The spring on my Penske is not progressive. I will be riding at Palmer a fair bit over the long weekend. I'm very curious to see if I can feel a difference. Not sure if Palmer has any bumps though.

The real test will be back at Thompson through the stutter bumps coming off the nascar oval, or the little drop coming out of T5 onto the nascar oval. Those spots really light up the rear tire.

[JettaJayGLS]

Well, I'm definitely curious to hear the results...I would think you'll need a stiffer spring as well?

[island boyeee]

My linear link made a huge difference at Thompson. I was passing people way outside the line in the oval lol

[Paul_E_D]

No. The spring should be correct. There is still some rise in the rate built into the linkage

[JettaJayGLS]

I figured if your rear spring was currently working well with a more progressive linkage, when you dial back to a more linear linkage that you would be lacking in the higher end of the travel....then again, I'm guessing with the adjust-ability in the penske you can play with clickers and get it right.