Originally Posted by
HerrKaLeun
I get it as small as possible to just cover the spoke holes. Like 19mm is the smallest I found.
Reason is i don't want rim tape too close to the bead because a tight tire will be even tighter when it has tape under and won't slide easily to the bead.
the rim tape only needs to have enough surface to stick and cover the holes.
Oh, and thinner tape saves a lot of weight
You're doing this on a tubeless setup, as the OP intends?