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Videos: Chassis mods for our KTM Superduke, why & how

43 posts · Started by GoGo · 02 Apr 2010

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Post 1 by GoGo,

#1
This has been in the making for a while now. Glad I can finally share it here with you all on Superduke.net. Not sure about you guys, but out on the track we run into a few issues once really flying on either our SD or SDR: Ground clearance, not enough trail, no way to adjust ride heights for different tyre shapes and heights. So we went to work with a local machinist/genius (Nichols Manufacturing) and came up with some proven solutions. As a result, these solutions are now available to us all.

Sorry I'm fumbling with listing specific links here. I'll just give you the direct url to our entire video page. First one on the list (for now) is the KTM Superduke 990 Chassis altering kit video. But if you are curious about what our local chassis expert Gerry Piazza had to say about our Superdukes, which lead us to getting these parts made, go to the fourth video down on the list. Neither of the two videos are very entertaining, but they are both informative.

Hope you enjoy,

http://www.gotagteam.com/KTM_Days/Title ... Video.html

Post 2 by darko,

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Post 3 by Colonel_Klinck,

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Post 4 by TC's SD,

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Great vids! Make sure to post the 'seat of the pants' results of your hard work. Makes me wonder how close my rear axle is to being 'square' using my archaic string method...?

TC

Post 5 by Stupid Luke,

#5
From GoGo's video it sounds like a 190 would fit but mess up the handling.

Which is what we told anyone that asked in the past, 'Why mess with a bike that handles?'

I am really keen to try those stepped yolks though. I usually set up sportsbikes with 2-3 rings showing through yolks for track use. As stated, there is no scope to do that on standard SD parts. I dont know if I need the adjustable rear as the rear shock on SDR is longer than that of SD anyway.

I am sure $800 is reasonable for the development costs that went into this. For the UK though you have to factor a bad exchange rate and extortionate customs charges if we buy on line. Then fitting and setting up costs when the parts arrive.

I am hoping to head for Queensland this December so may try to get a stopover in LAX Carry them home in hand luggage and lie to the customs nazis.

'Anything to declare?'
'Just this $15 KTM paperweight'

Post 6 by GoGo,

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Post 7 by GoGo,

#7
Also, sorry I neglected to mention this - I have hit my head many times by now - we have actually been using these chassis parts since before we ran at Laguna last July, it's just we were on the prototype triple clamp (exact same construction, just no finish, and Nichols wanted to be sure it proved it's mettle before he made the first run). Honestly, if not for these parts we would never be where we are with the Superduke today.

Basic reasons we needed these parts:

Not enough trail in stock trim (no matter what tyre you use)
Not enough ride height in stock trim (once you really start jamming out there)
No ability to alter ride heights in stock trim for different tyre brands/profiles/shapes (no matter what size or brand you intend to use - they all created differences which drastically affect how your bike goes down the road)

Lastly, as far as the rear ride height clevis goes, we have found it is a great advantage to not only be able to raise the rear ride height, but also to LOWER it.

Having good swingarm angle is vital on paper (the Superduke swingarm is relatively flat), which suggests you might want to raise the rear to gain swingarm angle for better traction - but we have not found rear traction to be an issue with the Superduke so far. Mostly we have struggled with the steep angle of the forks, leading to such little trail up front. Raising the front of the motorcycle helps get better trail numbers, as does keeping the rear low as it was stock (after you mount a better rear tyre, which could also be taller).

Suspension and chassis set-up is a never ending compromise. It's like the Give and Take Olympics. Until we can go as fast as we have gone on our 749R with similar hp, we will not have earned the Olympic Gold medal of set-up compromise.

Post 8 by bic_bicknell,

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Post 9 by Colonel_Klinck,

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Post 10 by Stupid Luke,

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Post 11 by GoGo,

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Post 12 by DribbleDuke,

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Post 13 by DribbleDuke,

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Post 14 by Menlo-SD,

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Post 15 by MrZ32,

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Post 16 by GoGo,

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Post 17 by gkjnr,

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Post 18 by Colonel_Klinck,

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Post 19 by kiwi,

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Nice write up GoGo. Does help make it all a little bit clearer

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Post 21 by Twisted Jester,

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Post 22 by drswade,

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Post 23 by Menlo-SD,

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Yes turn 8, full out leaned over, when are you going for the track day?


B

Post 24 by trackday junkie,

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Post 30 by MADDOG53,

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Post 31 by GoGo,

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these vids are great. the chassis measuring vid is great info and "iam dragging my balls" well that was just funny. "you still recording this shit" ha ha. all i can say is Rain Man.

Post 32 by MADDOG53,

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