I’ve got a Yamaha R125 and sometimes ride 2 up. She’s comfortable for about an hour, and for me it’s decent.

I did some parking lot practice with her on the back, just the same shit I did to get my license.

Hard braking is going to fuck up your nuts, and tell her to stay upright with the bike in turns, otherwise it’s scary as hell. Turns also feel heavy and weird at first.

Be careful when you stop, and put both your feet on the ground at first, and tell her not to move.

Acceleration with a passenger is going to a lot worse than without, but the top speed is around the same.

I’ve been on the highway with her (120 km/h limit), and its fucking awful. Tell her that when you tuck in that she should too, to more quickly get up to the limit.

I recommend getting a cardo or some other communication system.