Hi, as I a mountain biker I prefer offroad tracks but nevertheless I use the bike to move all around the city. If you have done some extensive road trips then going from Magaluf to son Vida golf is not a problem. You have a couple of ways to do so. One is going through main street close to the sea, skirting the Palma bay up to the center, near the cathedral. From here go inside the city through the bike path (marked on red on the sidewalk) on the Paseo de Mallorca until the carrer del Jesus street, keep going straight pass below a highway, and on the rondabout of the Son Moix soccer staduim take left. Go up, on the second roundabout take right, is the "cami son Rapinya" that will take you righ to the Son Vida golf in 5min.
Other way, longer but I would prefer as is more suitable for clycling. Once you depart from Magaluf you will get into Palmanova neighborhood, look for the signs to go to Calvia village and follow them. The is a small 1km climb, about %4 and long descent to the village. From Calvia look for Puigpunyent village directions, you should be heading to the right part of the village. Follow the road for about 6km, a small 1km climb and you will find a detour to the left "coll de Sa Creu". Is a short 4km climb of about %5-7%. Once on the top you will see the Son Vida golf, just go down until the first roundabout, take left until next roundabout and take left again, this is the cami de son Rapinya.
It is possible to hire a bike in Palma - the shop is on the long street from where the tour buses leave in front of the cathedral.
BIKE HIRE CAN BE DANGEROUS......NOT FOR NOVICES.
A CAR WOULD BE SAFER BUT NOT AS MUCH FUN......hehe