Will Waller said:Quoted message said:I'm curious to know what sort of fenders did you in.
Quoted message said:It was a set of Planet Bike's. The newer units appear to have a
release system, my fenders were installed 2 years ago and they
do/did not. That would have made a difference. The twig, and I
call it a twig because to call it a stick would be wrong, went right
up the back of the tire pulling the struts along behind it. If they
had released I'd be a much happier camper this morning. I think
another issue was the lack of distance between the tire and the
fender. It was a tight fit. A bit more space there might have
allowed the twig to hang up and buzz for a moment... that would
have given me time to hit the brakes.
Quoted message said:I've been biking for a long time. Fender collapse was about the
farthest thing from my mind in terms of danger. I should mention
the wheel is fine, the spokes are ALL fine. I thought I had wrecked
the front brake unit since the pads now sit near the top of the tire
but that's because the fork blades lost their rake as they deformed.
It might be that the brakes were involved once the pads rested on
the tire and not the rim, because I went from cruising to a complete
stop instantly. There was no skidding, the bike just somersaulted.
This is a well understood phenomenon and I have witnessed it on a
benign stretch of road on which small twigs from eucalyptus trees had
fallen. I generally call these less than 18" long curved twigs,
"derailleur sticks" because when they get in the rear wheel, they can
tear off a derailleur effortlessly. That they are slightly curved
makes them flip up and rotate into the spokes, if you are unlucky.
Don't ride over derailleur sticks! That goes doubly if you have a
front mudguard with non-breakaway braces that detach from the fork
when the stick yanks on them.
Just the same, thicker twigs can have the same endo effect if they
reach the fork crown. I have experienced that myself and seen others
do so on forest trails. If you haven't seen it occur or experienced
it, don't assume it will never happen.
Jobst Brandt