Or at least the standard sizes. For instance the 20x42x12 mm used on 05
KH is 10/10 $. The 17 x 40 x 12 mm used on Torker lx and a million
other square drive hubs are 10/10 $. Sealed pedal bearings are 20/10
$.
http://www.vxb.com/page/bearings/CTGY/17mm
The ISIS 22x42 mm is a custom uni only size, as is the size used on
Torker dx .
Terry is looking for the ISIS bearing, and as far as I know, only UDC
or other uni shops carry them. There is no other non uni equipment
that uses that size.
I ride in sand and sea weed all the time. I have found some nice shady
shore trails that cut through the mangroves and there is even some
kinda uphill sections for short stretches.
IMHO sand has no effect on the bearings, unless you have damaged the
rubber bearing seals. Just don't blast hard at the bearings with a hose
or you may drive stuff past the seals with the water pressure. I try to
avoid salt water in the sense that I never ride in the surf. If you are
on vacation, I would say you could ride in the surf, but let all the air
out and soak the whole uni in fresh water for a few hours before you
head for home. Try not to leave salt inside the tire-rim and realize
that a quick spray will not remove salt from spoke threads and tight
spots.
Obviously a fat tire is best in sand. On my 24 x 3 some places are
unridable when really dry, but not so hard if rain is still holding the
sand together. It's a fun challenge to try to power up the little sandy
slopes with the back tire spinning.🙂
It's to bad they made this thing in 20 instead of 24. I think a 24x5
would be a useful size for some people. The 20 " size makes it a bit of
an odd orphan.
http://brandscycle.com/itemdetails.cfm?id=10316
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