With the
caster shim set BBT 1345 we recommend to use longer front axle bolts of 100mm
for the 2 lower ones.
BBT has
them for you! The front axle bolts have a tensile strength of 10.9 according to
DIN standard and are sold per pair including 2 washers.
For the 2
upper ones you can use the BBT bolts of original length, available under
reference BBT 1347.