Roastyleg;c-144795 wroteThey don’t have dust seals. I think the maintenence is rebuilding the caliper after how ever many tracks days they been on for.
I hear using the v70r brakes is a little dodgy due the the bracket needed to mount them isn’t the strongest?
Please quote a reputable source. Any adaptor of adequate thickness will not have an issue and there are multiple v70r Caliper adaptors available.