Reply To: Mike’s 501

Certifiers specs are a bit vague at best. I had a long discussion with the guy and he told me the legalise is really outdated, so a lot of it is common sense and good engineering practises.
The specs say a minimum of 3.2mm thickness if using 1 inch tube, unless you use chrome-oly (a guess at the spelling sorry), then it can be 1.6mm. When i shorten the swing arm i need to machine up slugs that can be inserted into the tube before rewelding. Welding needed to be done by someone certified i believe.
That’s all we covered, it would pay to check in with things like modifying suspension and steering.
Hope that helps.