Designed the fit rear wheels with M8 threads for those who prefer
an M10 stud and nut .Made from high tensile rust resistant steel.
The rear has an M8 thread to fit into the wheel hub with a lightening
hole to keep the weight down. The front has an M10 thread and a
hex socket (to fit a 4mm Allen Key) for ease of installation. The front
also has a smooth shoulder for the sprocket to sit on without damage
from the thread. They are lightweight but strong.
Thread sizes M8 x1.25 and M10 x 1.5