Cyclix at Mahim is a cycle rental store that specialises in adventure and mountain bikes. You'll find brands like Giant, Bianchi, Montra, Firefox for rent here. However, there is no per-day rental system here. Rentals will cost you INR 1200 for a week, and INR 3000 for a month. They provide a helmet along with the cycles, and every cycle is well sanitized and washed. You'll need to submit your address proof and an ID as your deposit here. Also, it's best to book a day in advance here as cycles get booked up real quick.