Budget supermoto build - Chicagoland Sportbikes
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post #1 of 27 (permalink) Old 04-11-2011, 02:36 PM Thread Starter
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Budget supermoto build

So I have an 02 Kx250 that I use for the ice. It's lowered a couple inches already. I have a set of 2nd gen SV wheels that nobody wants to buy so I've been thinking about having Gus cut them up and fit them on the KX. I'm imagining that we will run one front rotor and make carriers for SV calipers front and rear. I'm also imagining we use the KX axles and install different bearings in the modified SV wheels. Probably have to cut material off each wheel to where the fit.

Yes I know it is not the ideal build but I think it will work well enough to have some fun.

Comments, criticism or concerns are welcome.

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post #2 of 27 (permalink) Old 04-11-2011, 02:42 PM
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Seems like a lot of work , wouldnt it be easier to buy a ready bike ?
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post #3 of 27 (permalink) Old 04-11-2011, 02:42 PM
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If it can be done for cheap, it's worth a go.

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post #4 of 27 (permalink) Old 04-11-2011, 02:47 PM Thread Starter
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Quote:
Originally Posted by STANIMAL View Post
Seems like a lot of work , wouldnt it be easier to buy a ready bike ?
I have the wheels, I have the bike. I need to compensate Gus for his time, buy bearings and supply material for caliper carriers. That is cheaper than a whole motorcycle.

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If it can be done for cheap, it's worth a go.
I'm thinkInh a hundred bucks for bearings and a few more bucks for materials. Resurrection will have to quote the number hours expected.

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post #5 of 27 (permalink) Old 04-11-2011, 03:09 PM
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Nick, how would you make the SV wheels work? are cast wheels as light as hub and spoke style wheels? How much modification is required to make a sport bike wheel fit on a dirt bike axle?

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post #6 of 27 (permalink) Old 04-11-2011, 03:13 PM
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cast SV wheels may be lighter. spoked SM wheels are fuggin heavy!
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post #7 of 27 (permalink) Old 04-11-2011, 03:13 PM
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Quote:
Originally Posted by clearwaterms View Post
Nick, how would you make the SV wheels work?
sounds like he is planning on turning down the hubs to be narrower.


Quote:
Originally Posted by clearwaterms View Post
are cast wheels as light as hub and spoke style wheels?
doubtful. but looks like budget is the most important factor Upgrades could possibly be done in the future as things allow.


Sounds like a wicked cool project. Wish I just had bikes lying around to do cool shit to.

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Originally Posted by clearwaterms View Post
How much modification is required to make a sport bike wheel fit on a dirt bike axle?
get new bearings with the proper inner (axle) and outer(wheel) diameter. then pack (if necessary) and press.

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Oh he can drive. He can drive beyond the limits of the tires, the engine, the car or anything else.
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post #8 of 27 (permalink) Old 04-11-2011, 03:24 PM
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Do it. I've seen a few conversions that used old CBR F3 wheels. SV wheels have to be a similar width. I'm sure you and Gus can figure it out.
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post #9 of 27 (permalink) Old 04-11-2011, 03:40 PM

 
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I've done the f2/f3 wheel thing onto an XR650R

the big concern will be tire width we may have to run a thin tire to avoid the chain.

For the most part any wheel on any bike, any time.

Ofcourse a 200mm tire would not fit on a ninja 250 but anything within reason.

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I'd love to help but I don't chase parts.
Please contact other forum members and supporters for parts.
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post #10 of 27 (permalink) Old 04-11-2011, 04:00 PM
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Love to see this happen . I see guys on advrider with similar conversions.
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post #11 of 27 (permalink) Old 04-11-2011, 04:22 PM Thread Starter
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Where are the comments about a 2 stroke not capable of being a super Moto?

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post #12 of 27 (permalink) Old 04-11-2011, 04:26 PM
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Quote:
Originally Posted by Grasshopper View Post
Where are the comments about a 2 stroke not capable of being a super Moto?
Albert Rocca rails a 2t 500 - You just have zero engine braking - Fuck it, do it

"Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming WOW, what a RIDE !!"
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post #13 of 27 (permalink) Old 04-11-2011, 04:39 PM Thread Starter
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Quote:
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Albert Rocca rails a 2t 500 - You just have zero engine braking - Fuck it, do it
Yea, you have to be a man to ride that thing

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post #14 of 27 (permalink) Old 04-11-2011, 04:47 PM
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Nick i think that would be a sweet project! and 2t are great for sumo most of us just dont have the balls to race them=)
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post #15 of 27 (permalink) Old 04-11-2011, 04:50 PM
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here is a great project for some one!
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post #16 of 27 (permalink) Old 04-11-2011, 05:03 PM
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Quote:
Originally Posted by Grasshopper View Post
Where are the comments about a 2 stroke not capable of being a super Moto?
only thing I'd worry about is the piston seizing up when you get off the gas at the end of a straight. just jet it rich and hope for the best

I don't think the lesser amount of engine braking would be too big of a deal. might even make it easier once you're used to it. just look at all the guys that spend a grand on a slipper clutch for a thumper to make their engine braking more manageable. (Bug)
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post #17 of 27 (permalink) Old 04-11-2011, 05:12 PM
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here is a great project for some one!
Where is this project ?
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post #18 of 27 (permalink) Old 04-11-2011, 05:46 PM
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it could be yours for under 2k! its posted on SMJ
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post #19 of 27 (permalink) Old 04-11-2011, 06:00 PM
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it could be yours for under 2k! its posted on SMJ
link ? thanks.
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post #20 of 27 (permalink) Old 04-11-2011, 06:33 PM
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link ? thanks.
CR500AF Supermoto project in the BIKES FOR SALE section!
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post #21 of 27 (permalink) Old 04-11-2011, 06:35 PM
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Quote:
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Nick i think that would be a sweet project! and 2t are great for sumo most of us just dont have the balls to race them=)
True - The 4T is the lazy mans love and I do LOVE me some engine braking

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post #22 of 27 (permalink) Old 04-11-2011, 06:37 PM
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Quote:
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just look at all the guys that spend a grand on a slipper clutch for a thumper to make their engine braking more manageable. (Bug)
dick (and it was only $900)

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post #23 of 27 (permalink) Old 04-11-2011, 09:34 PM Thread Starter
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The bike has a heavy fly wheel weight and is geared for riding huge road courses on frozen lakes. Very similar to supermoto

I think this may be one of the next resurrection projects. We will fully document it and take pictures. It should be fun

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post #24 of 27 (permalink) Old 04-11-2011, 10:44 PM

 
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Bring both sets of wheels with all the parts sprockets, disc and spacers.

First we find swingarm centerline.from out side of each spacer.

Then we will space the SV wheels to match the sprocket centerline of the KX wheel.Then we will mount the disc at the same width as on the kx wheel and it will bolt right in.(knock on wood)

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I'd love to help but I don't chase parts.
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post #25 of 27 (permalink) Old 04-11-2011, 11:09 PM
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Quote:
Originally Posted by Grasshopper View Post
The bike has a heavy fly wheel weight ....
How do you like the flywheel weight on the 2T !?

Heard a lot of people like it - but I'm still getting used to my yz250 (so I don't want to change anything yet).

Right now I just ride up 1 gear & it keeps me out of trouble

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post #26 of 27 (permalink) Old 04-12-2011, 03:12 PM Thread Starter
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How do you like the flywheel weight on the 2T !?

Heard a lot of people like it - but I'm still getting used to my yz250 (so I don't want to change anything yet).

Right now I just ride up 1 gear & it keeps me out of trouble
The heavy fly wheel weight allows you to be at a lower RPM in a given gear and still have some grunt. I love it. I put it in there for riding woods and kept it in there for riding the ice because you don't have to screem the thing everywhere.

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post #27 of 27 (permalink) Old 04-12-2011, 03:53 PM
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Here ya go homie - No one slides it like Roca

Vid takes a min to kick in....


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