mornish said:yea, I'm wondering, could I put a 20" freestyle wheelset into my KH
frame?
-Miles
This will depend on what wheelset you are trying to put into the frame.
Certainly if you have a freestyle wheel set built around a KH hub you
will have no problems with fitting it in the frame but the hub is
overkill for a freestyle unicycle.
If you have a freestyle wheelset using a Unicycle.com Chromoly hub then
the distance between the bearings is exactly right but the bearings do
not have a large enough outside diameter. If you just put this
wheelset into a KH frame it WILL NOT work as the wheelset will be too
loose inside the frame.
KH Hubs use 6004-2RS bearings which have an inside diameter of 20mm and
an outside diameter of 42mm.
UDC Chromoly Hubs use 6203-2RS bearings which have an inside diameter
of 17mm and an outside diameter of 40mm.
Both bearings have a width of 12mm so you can get around the problem of
a loose wheelset by adding a shim to the outside of the 6203-2RS
bearings to take them up to 42mm diameter.
Unicycle.com UK sells these shims I believe:
http://www.unicycle.uk.com/shop/shopquery.asp?catalogid=860
As others have pointed out you may want to get a longer seat post, as
when riding trials you usually run your seat post way lower than you
would for a freestyle uni.
--
peter.bier
-Peter Bier
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