seatpost adapter

hey is there a seat post converter like this one but without the brake mount

i might use a thompson seatpost on a trials uni im am going to build soon, also it has to fit a nimbus seat and has anyone had any expirence using one for trials thanks

This doesn’t help much but you could always saw off the brake mount and sand it down.

Also, I don’t know if you’ve considered this or if anyone has mentioned it but using a rail adapter on a trials unicycle kind of sucks because your hand gets all caught up in it when you are doing SIF riding.