There are a few bicycle hire shops in the town, specialising in mountain bikes and one with TREK mountain bikes in particular. One shop has bikes for sale and will also undertake repairs. There is also a shop renting out electric bikes.
There are bikes for adults with child seats and smaller bikes for children available. Helmets are strongly recommended and usually a passport and a deposit are required before taking the bike out for the day (or however long you have hired it for). You will find that special rates for longer durations can be negotiated.
If in the event of an accident, then usually you will be given a number to telephone and somebody from the bike shop you hired from, will come out to offer assistance. You will, however, have to ask questions before you depart and find out exactly what each shop has, as their code of practice. It may not include basic repairs such a punctures etc.
SUMMER 2014: ILIAS RENT-A-BIKE now has TREK mountain bikes for rent, alongside his motorbikes and quad bikes.