Kawi2strokes.com Forum

I suppose the goal is less un-sprung weight but I'm curious if there is more benefit to focus on a lighter rim because of the centrifugal effect?

Also LC, didn't you make the comment that after it was all said and done, there wasn't much weight savings with your conversion?

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Btw, the scalloped hub looks cool!

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http://kawatriple.com/wtf/

Actually there was several things changed at the time of my conversion. I went from an H1 back hub with a Boranni 2.15 rim (120/90 tire) to a S hub with a 3.5 Excel rim fitted with a 140/80 tire (much bigger tire/tube/rim). I also went from a steel 530 sprocket to an aluminum 520.

The weight of the wheel assy ( brake/ sprocket carrier, sprocket, spacers, all but the axle) was 39 lbs. The new wheel assy (again with a much bigger tire/rim) was 37 lbs.

J

Not to mention it looks way kewl as well!!!
Did you notice any difference in handling?

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Hard to tell, as the bike was U/S for about 6 months due to winter and "improvements" last year (Donny's party was the maiden run). However it did feel less quick to throw around. This might be due to the wider/more gentle arc of the profile, a slight increase of trail (can't find the wheel size comparator), or the placebo effect.

J

Finishing touches on the hub. And yes it is not the "exact" same hub in before and after.

Before:



After:

Neat stuff !

I see you've gone to an "S" hub now!
What size holes did you drill?

J

ok guys I run an s series wheel on my h2

spindle is the same size as a h1 you can use a h1 spindle with h1 chain adjusters

I have mine laced to a 3.1/2" rim



Gary T

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Is all the vertical load from the spindle taken by the chain adjusters alone, or have you also put a couple of sleeves on it to make it fit the H2 size slots in the swinging arm?

It was drilled to aprox 5/16", the OD of the recess for the spoke head was around .330" so they are close in relation. I used a #4 center drill that I drilled all the way through with. When you drill it the flange of the hub is not flat, so I used the center drill to prevent walking.

Hal, I belive that you need to have some sleeves made for the slots when you do the conversion to the H2.