Duke 4 complete airbox delete project, success! - Page 11 - KTM Forums: KTM Motorcycle Forum
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post #101 of 235 (permalink) Old 05-29-2016, 10:31 PM Thread Starter
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I have to hand it to you Boldor; you're right about that Vitpilen. It's not a cafe bike. It's not a supermoto. It's a weird mish mash of the two. It's incongruous. What it does have is some gorgeous individual details, like the rear cutout and airfilter line, tank, exhaust. As a whole bike, though, it disagrees with itself.
Maybe the most off-putting thing about it is that it is too much of a retro throwback, which I don't like as a rule. If you want a cafe bike, BE a cafe bike person and build a Norton or or an XS or whatever. You can't buy a brand new bike and call it a cafe bike. Owner modification, customization, and trial and error are as integral to the definition of what a cafe bike is as the final product.
This thing is not a rider's bike. It's a fashion bike.

Last edited by Kafka; 05-29-2016 at 10:37 PM.
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post #102 of 235 (permalink) Old 05-30-2016, 07:11 AM
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This thing is not a rider's bike. It's a fashion bike.
That's a pretty bold statement to make without riding one ?
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post #103 of 235 (permalink) Old 05-30-2016, 12:25 PM Thread Starter
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Yeah that's true. More of a hypothesis based on the appearance.
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post #104 of 235 (permalink) Old 05-31-2016, 06:10 AM
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Question for Kafka.
Your 3D printed part clamps on to a part that then clamps on to the bike.
Is there some reason why you didn't combine these 2 parts into 1 since you were designing and printing a part anyway ?

Also your pod filter is angled up on purpose to get it close to the seat I assume that's done just for looks.
If you loosened the clamp and rotated that part around 180 it would be angled slightly down without any affect on it's function ?

Asking because I want get rid off the entire rear end of the bike and need a bit of space under the seat for the tiny battery so the pod angled down would work better than angled up.


Thanks for using my picture now I want to delete the sub frame too
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post #105 of 235 (permalink) Old 05-31-2016, 08:25 AM
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Go for it.
Would you build the new rear subfame yourself or have it done somewhere ?

I'm not "qualified" to do it myself so would be nice to see what you come up with.

I've asked one bike builder for a quote.
Will let you know the reply in case anyone else is interested.

I picked a picture of your bike because of the single colour background.
Easier to do the shady "Photoshop" - lol

Last edited by wiwwee; 05-31-2016 at 04:06 PM.
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post #106 of 235 (permalink) Old 05-31-2016, 11:28 PM
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that 701 does look damn sexy though.

Btw Kafka would you be willing to sell some of those 3d printed parts, I'm assuming all that is needed would be the tubing and some jubilee clips?
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post #107 of 235 (permalink) Old 06-01-2016, 12:13 PM Thread Starter
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I am sending a filter and velocity stack to Boldor this Friday.
Maybe you should wait to hear what he thinks about it after he gets it installed before you decide you want one!!

To answer your question, the tubing is the 3d printed part. You have all the rest of the tubing already on the bike. You also don't need a jubilee clip, since the K&N filter comes with one.

You would need:

--K&N RX 4140 filter
--My part
--zip ties to fasten wires to the right side of the subframe (they used to attach to the top of the airbox)
--a bracket you make to go from the end of the filter to the rear subframe to hold the filter in place (I drilled a small hole in the rear subframe to bolt the bracket to.) This is one of the very few filters that has a hole in the end of it and a molded negative bolt head so you can put a bolt through the end of the filter to bolt the bracket to. I made my bracket out of aluminum flat bar. See pics above.
--nuts and bolts for the bracket
--a long rear hugger if you're worried about rear wheel splatter. I bought a long carbon rear hugger from China for 120.00. Another user made a plexi splash guard that fits where the bottom of the airbox used to be. Other users have kept parts of the stock box. I wanted the whole box gone, so I went for the long rear hugger.
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Last edited by Kafka; 06-01-2016 at 08:39 PM.
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post #108 of 235 (permalink) Old 06-01-2016, 06:02 PM
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on top off the parts listed some sort of tweaking for the fueling is required too ?

Winter sucks
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post #109 of 235 (permalink) Old 06-01-2016, 06:06 PM Thread Starter
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Yes it is. Anything from Kevs fuel mod to a PCV would work. I found the Akra map too lean down low.

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post #110 of 235 (permalink) Old 06-03-2016, 12:07 PM
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Interesting to see how this all pans out with how it affects those with the Akra map. I'm still rolling with the stock map and just a slip on (for now!). Kafka, do you think this makes the Akra map insufficient?
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