thanks to carl fogel, here are some photos of my disk brake
fork which i hope offer a data point on slippage of a wheel
axle when subject to disk braking forces.
home.comcast.netImg 3199.jpgOpen ↗
this image shows the inside of the fork end for the left
side, the side on which the brake caliper is mounted and
therefore the side subject to maximum ejection force. usage
is removal and re-clamping an average of twice a week over
the course of just over 1 year. mileage is somewhere over
2000. i weigh ~210lbs.
points to note:
1. clear bite marks from the axle facings which are stable
and have settled into a repetitive pattern of re-use.
2. no tearing or shear marks from slippage while clamped.
3. minor surface wear from repeated insertions. please also
note that i take care to jiggle the wheel around to
ensure it's both seated properly on insertion and to
separate the disk pads on removal. this will increase
wear marginally.
home.comcast.netImg 3196.jpgOpen ↗
this image shows the assembled wheel & fork. just in case
anyone doubts mileage and use, please note the thickness of
the disk, or rather the thinness of the disk. - contrast the
width at the disk perforations vs. the width at the disk
spider arms. disk & fork are the same age.
jb