Gravel bike drivetrains are designed to handle a wide range of terrains, from smooth roads to rugged trails. Most gravel bikes feature wide-range gearing, allowing riders to tackle steep climbs and fast descents with ease. 1x drivetrains, with a single front chainring, are popular for their simplicity and reliability, especially in muddy or rough conditions. 2x drivetrains offer more gear options, making them ideal for riders who need versatility across varied gradients. Gravel drivetrains are built to be durable, with robust chains and derailleurs designed to withstand harsh environments. Many gravel bikes also include clutch mechanisms in the rear derailleur to reduce chain slap and improve chain retention on bumpy trails.

Gravel bike wheels are designed for durability and versatility, accommodating wider tires for better traction and stability on varied terrain. Many are tubeless-ready, allowing for lower tire pressures and reducing the risk of flats. Wider rims support larger tire volumes, improving grip and comfort on rough surfaces. Gravel bikes typically use 700c or 650b wheels, with 650b offering more clearance for wider tires and better performance on technical trails. Lightweight wheels enhance climbing and acceleration while remaining robust enough to withstand off-road demands.

Disc brakes are standard on gravel bikes, providing consistent and reliable stopping power in all weather conditions. Hydraulic disc brakes deliver superior modulation and control, perfect for technical descents and muddy trails, while mechanical disc brakes offer a more budget-friendly, low-maintenance alternative. Disc brakes also allow for greater tire clearance, accommodating wider tires for off-road use. Gravel-specific disc brakes are built to handle prolonged use without overheating, ensuring confidence and safety on long rides and steep descents.

Gravel bike frames are built for comfort, durability, and performance, with materials tailored to different needs. Carbon frames are lightweight and dampen vibrations for smooth rides, while aluminum frames provide affordability and resilience, perfect for new riders. Steel frames deliver exceptional comfort and strength, offering a classic feel, and titanium frames combine lightness and durability for premium performance. Gravel-specific geometry prioritizes stability and control, with slacker angles and longer wheelbases for better handling on mixed terrain. Many frames include mounts for racks and bags, making them ideal for bikepacking and extended adventures.