99 Bikes Castle Hill is located in Sydney's northwest, on Victoria Avenue, Castle Hill. Our Castle Hill bike shop has a huge range of bicycles, scooters bike parts, indoor trainers, cycling apparel, car racks, nutrition and everything else you could need. Our professional bike mechanics are on-site, offering servicing and repairs on all types of bikes including road, kids, mountain, and everything in between. Open 7 days a week, with late trading until 6:00pm on weeknights, and workshop drop-off from 9:00am Monday to Saturday and 10:00am on Sundays. 99 Bikes offers the guaranteed best price on bikes, parts, clothing and accessories from world-leading brands such as Merida, Norco, Cube, BMC, Shimano, Wahoo, Garmin, Yakima and more.