K7/K8 GSXR 1000 suspension setup

Hi All,

Currently my 2007 gsxr1000 bike is on a Penske 8983 shock and stock front.

Rear tyre 190/55, and fork flush to top triple.

At low speed while turning i notice that the front wheel wants to turn in by itself ( as in the clipon turns in more than my hand input) which is a bit unnerving at track.

Would appreciate any comments or suggestion to this issue that i am having...

Thanks

 

Worn tires? How long is the rear shock?

 

I was told by a reliable source that chassis likes the front raised quite a bit, more so than what you have now.

 

I like mine tall. The rear is 5mm shim (blue), and my forks are longer than stock (AK-Gas front, TTX-with-the-valve rear). My setup is way different than yours, though, my issue is hooking without traction control/controlling rebound on corner exits.

To fix it, I'll probably sell my 1k and get a 600.

 

Nowhere near enough info to give any real useful answer.

 

Hi All,

Solved the front end issue. Apparently my tire gauge was faulty and was giving me a higher pressure reading thus my tire pressure were way too low.

418,

I notice that you are racing a K7 gsxr 1K. Care to share your geometry track setup? I have ordered a 25mm fork kit to complement the penske in the rear. Still need to dial in my setup to counter a bit on mid corner instability and to get better rear traction off corners. I'm an advanced group trackday rider...

 

Get the fork extenders.

 

Care to share where I can get the extenders? The ones I have seen are for 600/750 bikes...

 

I'd call ohlins USA. I have not seen them for sale on a website and I asked for them when I ordered my 25mm kit.

 

My forks are longer with the AK-Gas internals. I don't recommend it as a cost-effective way to lengthen your forks - but it's a really nice front suspension.

 

I've ordered a Matrix 25mm cartridge kit - F05R. Was told that it will extend the forks by about 3mm. Doubt that the ohlins extender caps will fit the Matrix. Any suggestions?

 

They probably will not fit. A lot of people are shoving the forks at least 10-15 mm further into the triples and you can't internally extend the forks that far I believe.

 

^some guy...

My AK-Gas fronts are (quote from Mike at Traxxion):

Another option: look at the lower triple-clamp, and (if you're in a SB class) mill the top surface to drop the nose a couple of mm.

Mine are mounted with 1mm over the triple, a TTX rear with the 'good valve', a 5mm shim in rear, and swingarm angle at 12.6' (give or take a tooth on the rear sprocket). The bike is very tall. It produces a bike that does pretty much everything well, but can get the rear wagging under braking, and without TC can still spin the rear from corner-to-corner chewing up blue Pirellis. I haven't been able to fix that/control it.

As I said earlier, I will probably fix it by getting a middleweight for next season if I'm racing at all.

 

Well there you go. Go buy some $$$ internals and problem solved

Either way to the OP get the bike tall tall tall.

 

I don't have fork extenders. My bike handles fine.

 

Yeah, I hear that from other folks, too. I bought mine with the AK-Gas and TTX (former Blackfoot Suzuki bike), and would rather go with something newer than change the setup I've got.

Yosh had linkage-rate swap parts for the '09-up, I don't know if anyone ever made any for the '07-'08. Not going to try now - there's a very strong possibility I'll be moving into the most-expensive real-estate market in the country soon. I may have to race a box-stock (Kawi 300?) class next season

 

I think they can help but I was told you pretty much need to be at a AMA SBK pace to absolutely "need" them.

 

So what geometry are you running on the K7 at the moment?

 

Your moving to Cali...?

 

yeah, maybe. Shh.