My girlfriend have terratrike path with 8 speed S-A hub. Recently I removed back wheel when maintaining the trike and noticed that
lock washers (item 41 on part list http://www.sturmey-archer.com/pdfs/XRF8.pdf
, upper one) were in bad
shape (axle threads were "eating" to the washer and washer was quite hard to remove). After reattaching the back wheel to trike, lock
washers didn't prevent hub from rotating while pedalling. Now I would need a pair of new lock washers. I tried to contact S-A europe and usa but with no reply. Could you tell what is correct spare part and where is best to obtain these lock washers?
ps. We live in Finland