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Old 03-01-2015, 05:19 PM   #1
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setting up a ninja 250 for the track

what all needs to be done to the suspension on a 2011 ninja 250 in order to make it competitive on the track? this will be my first light weight bike and i don't have a clue where to start
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Old 03-01-2015, 08:40 PM   #2
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the gsxr rear shock helps a lot (inexpensive route), or you can get penske, ohlins or something more reputable/expensive.
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Old 03-01-2015, 09:54 PM   #3
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Mr. P will tell you than a stock bike can be competitive. I'd get stiffer springs in the front atleast and a rear shock. Hopefully some people with actual advice can help better.
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Old 03-01-2015, 11:51 PM   #4
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We have a GSXR rear on the team bike! It's supppse to be one of the cheapest options you can do! Not many adjustments though.
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Old 03-01-2015, 11:58 PM   #5
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Quote:
Originally Posted by Rykoson View Post
We have a GSXR rear on the team bike! It's supppse to be one of the cheapest options you can do! Not many adjustments though.
what about the front internals? Did you guys have race tech internals for the front right?
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Old 03-02-2015, 12:31 AM   #6
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We put a GSXR600 shock on the rear, made new dog bones to raise the rear end up and ran emulators. The emulators work good to a point, for anyone over 200Ibs. like myself there isn't enough dampening going on when you push the front. The front will bounce off bad spots on the track and at full lean I've had the front slide on me, A LOT!
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Old 03-02-2015, 10:29 PM   #7
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Front forks can change springs and can add thinner or thicker oil in forks
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Old 03-02-2015, 10:39 PM   #8
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Also ditto on the gsxr rear shock
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Old 03-02-2015, 10:51 PM   #9
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Race tech front with preload caps and Penske in rear. Have run a 1:55 at MSRH.
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Old 03-03-2015, 10:11 AM   #10
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Quote:
Originally Posted by Jredford View Post
Race tech front with preload caps and Penske in rear. Have run a 1:55 at MSRH.
That's what im talking about!!
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Old 03-03-2015, 04:31 PM   #11
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yeah!! Johns is probaly set up the best! We still have to add the dog bones to ours and get the geometry right.

As far as set up goes...its a 250...very little you can do.

Roger has a new product from JRI that supposedly had dampening and settings on the front forks. Not to familiar with them, but we were thinking of testing them out, just need 300$ to do it. lol
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Old 03-03-2015, 05:15 PM   #12
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Old 03-03-2015, 05:21 PM   #13
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Quote:
Originally Posted by Rykoson View Post
As far as set up goes...its a 250...very little you can do.
You have a few options for front.

Sonic Springs are cheaper than Race Tech.
Race Tech Gold Valve Emulators more more adjustable and more expensive than Ricor Intiminators.

Fork cartridges by price: Adreani > AK20 > K-Tech > TWF Racing modified cartidges

Rear shock: Ohlins, Penske, Elka, K-Tech, JRI racing, KTC racing, RPM, ZX6r, ZX10r, GSXR

Rearsets: Vortex, Woodcrafts, SVracing, X-racing, asian brands, etc

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Old 03-03-2015, 06:35 PM   #14
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IF you apply for the rider support program with Race Tech you get dealer discount which is 30%off so cartridges are $1000 installed.
GSXR 600 rear shock is a good option but you will need dog bones 10mm shorter from the stock ones to bring the bike back to it's original height.
Vortex rear sets are the ones I like most because of the adjustments which woodcraft does not offer any...
Clip on are also vortex but I do like to have the clip on's lower and not with the extension so you will have to cut the plastics to make room for it to turn.
I have M4 full exhaust on the "B" and also a After market CPU to help with the Jetting which is LV3 from DynoJet and pod K&N air filters are a must!
Galfer brake lines and Vesrah brake pads should complete the package and please, ride it as if it's stolen... that's the only way to keep this thing going
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Old 03-03-2015, 06:37 PM   #15
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Quote:
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.... If you need a rider, keep this ninja in mind
I sure will...
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Old 03-04-2015, 12:21 AM   #16
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Arkansas Dave is right. I'll recommend the cheap route. Get Pirellis from SCRC, or Bridgestones if you prefer. Stock rear shock, 20 weight oil up front 110mm from the top with forks compressed, springs out. 1/2 inch of spacers in the forks. Rearsets from Woodcraft, but go cheap and keep the stock shifter and brake lever. They don't snap off in crashes. Woodcraft or ebay china clips ons. Front steel braided line is optional. GSXR used stabilizer with fork clamp.

With that set up we've placed top three in the dry and 1st in the wet in 4 hr endurance races on a bike with stock pipe and everything else stock. Teammate placed on podium in sprints every time he ran it. Even with a stock shock and my fat 195 lb I ran 1:30's at Cresson on the big track. 1:12's at MSRH short track. ~1:26 ECR.

Next upgrade would be the GSXR shock and dogbones, a $100 mod. After that, fork emulators and springs. After that a used pipe and pod filters with jet kit. Until you run top 5, a rear shock doesn't do much for you. After that....get a 300. Gotta know when you're throwing good money after bad on a little 250.

Fully built bikes can be had for $3500. Minimal prep like mine, $2000 or $2000.

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