The PRB switch on the 2022 Epure Race looks funky to me. A lever above the clutch lever.
I have my PRB button mounted just to the inside of the throttle and easily reached by my thumb. It works for me.
I got my FRB button direct from the EM distributor. It has the right length of wire and connectors. Otherwise, it's just a kill button and you can save a LOT of money if you are willing to do your own wiring.
Hi from Fairbanks, Alaska. I've got two oldies: 74 TY250 and a 75 TL250. Both run great but the TY250 needs a new kick starter lever and the TL250 needs a new exhaust system. Lots of fun!