NAHBS 2008
Read More
Sutherlands ERD measurement system. You measure the depth of the spoke holes, then look at where the tape meets on the outside of the rim. It makes it easier to measure ERD than the normal method.
Sutherlands ERD measurement system. You measure the depth of the spoke holes, then look at where the tape meets on the outside of the rim. It makes it easier to measure ERD than the normal method.
