The Marin San Quentin GX Eagle is a tough, modern hardtail built for aggressive trail riding and bike park laps alike. Its aluminum frame and progressive geometry create a stable, confidence-inspiring ride that thrives on steep lines, jumps, and technical terrain. The hardtail platform delivers a direct, lively feel, rewarding active riding while keeping things simple and durable. Paired with a SRAM GX Eagle drivetrain for a wide gear range and reliable shifting, the San Quentin is a capable, fun-forward trail bike for riders who like to push a hardtail hard.