Catboy said:*... you would literally have to grind about a mile before it wore
down any... *
C'mon catboy, could you stop pulling facts out of thin air?! On solid
steel cranks, grinding won't damage them much at all. On painted hollow
cranks like Onza and black profiles, you really can weaken the crank
enough for it to break, but it takes a long time. Noone knows how far or
long you'd have to grind before it'd trash your cranks. It depends on
the material of the ledge or rail and your crank. I asked Dan Heaton if
he's ever ground through a set of cranks, and he hasn't. I'm sure he's
effectively done around a mile of grinds.
I would be seriously surprised if you had to replace the housing on the
yuni frame. I've been pedalgrabbing, crankgrabbing, and grinding for
around a year, and my Onza housings are fine. If it really is that bad,
simply revers which housing is on your grind side.
digitalattrition: I've never ground a spoke off grinding, but something
to be careful of is on big pedal-gaps or grabs onto rocks, you can have
a piece of the rock smash into a sopke onyour wheel. This has happened
to me, and first it bent the poke, and then, finally, the head of the
nipple sheared off. I think if you have a fat enough tire, it protects
from the spoke heads from shearing off.
I think that your crank will be worn oout or broken by spline wear or
metal fatigue long before grind damage becomes a factor.
--
gerblefranklin - Trials Unicyclist
Don't you think it's a cruel irony that acting like a G.I. Joe in the
army can get you a Medal, while playing with one can get you thrown
out?
http://gallery.unicyclist.com/Trials-Muni
"Our enemies are innovative and resourceful. They will stop at nothing
to hurt us and our people, and nethier will we"-Dubya
Vote Kerry. Yeah, they both suck, but Kerry sucks less.
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