2025 Factor OSTRO VAM Shimano Dura-ace bike 30 or 25mm bottom bracket

30 or 25mm bottom bracket drop (size medium) to fine-tune handling for trail conditions

Designed for kids 18 months to 5 years

Giant’s trusted ALUXX-grade aluminium and high-quality components mean this bike can handle years of riding

and enjoying every thrilling descent

2025 Factor OSTRO VAM Shimano Dura-ace bike 30 or 25mm bottom bracketHarnessing aerodynamics, lightness, responsiveness and comfort in one bike is no longer a dream. Thanks to our engineers' expert carbon fibre lay up techniques, our commitment to premium materials, and the unique control our own factory offers, the new OSTRO VAM performs in all areas. This isn't just innovation; it's a reimagining of performance on two wheels, all designed to deliver an unmatched cycling experience. Experience the new OSTRO VAM: