I have Mavic Open Pro rims on old Mavic hubs, 32F/36R three cross, double butted spokes, built by myself. Ride them daily on city streets, this is my commute bike. Weight 180-190 lb (fluctuates), plus bike and luggage weigh over 30 lb with all the commute stuff. Haven't needed truing for almost two years since build. If that wheelset of yours is undamaged and built right, it should be fine. I would have a competent shop check, true and tension the wheels. I do "ride light" though, and hopefully you will as well.