Gravel bikes have shorter stems to provide better handling. The short stem keeps the gravel bike more stable, making it easier to control on loose surfaces. It also improves the gravel bike's ability to change directions quickly, which is essential for negotiating tight turns on singletrack trails. In addition, the short stem lowers the gravel bike's center of gravity, making it more resistant to tipping over in technical terrain. Ultimately, the shorter stem provides gravel riders with better handling and greater control, both of which are essential for safely navigating off-road trails.