This is the bike you can rent, and what type of bike you need if you have your own.
If you have your own bike it should hould be a MTB / Hybrid type bike, preferably with some broad tires and bicycles with good gear change. Due to steep climbs there is need for a high top gear.
We have 29" offroad/hybrid bikes. This is a good bike adapted to the elevations you
must ride. You will have a tool box with tools and pump if you need it.