Advent is an outstanding drivetrain that offers great value. If you need a wide and modern gear range, and a chain - stabilizing clutch for 1x or 2x chainring setups, ADVENT is the answer. It pairs perfectly with microSHIFT's responsive and ergonomic shifters. When you're looking for the best price - to - performance ratio in the market, choose ADVENT. ADVENT Clutch Rear Derailleur for 1×9 Speed: Designed for real riders, this rear derailleur combines trail - ready features in an affordable wide - range drivetrain. The clutch uses a unique ratchet - and - pawl tension assembly for better chain management on rough terrain. It's easily adjustable and fully repairable. The precisely tuned derailleur kinematics use a direct cable path, ensuring consistent shifting across all gears. With tough construction, it can handle mountain bike abuse and competes well with more expensive drivetrains. - Reliable ratchet - and - pawl clutch that's easy to adjust and repair. - Direct cable routing for smooth and responsive shifting. - Compatible with 11 - 42T and 11 - 46T 9 - speed cassettes. - Works only with ADVENT shifters. ADVENT 1×9 Drop Bar Shifters: Ideal for adventures with drop bars and wide gear needs. Compatible with ADVENT rear derailleurs and 9 - speed 11 - 42T cassettes, these shifters offer a durable 9 - speed setup with a modern gear range. - External shifter cable routing and internal brake routing. - Left - side brake only for 1×9 setups. - Shifter levers separated from brake lever to prevent accidental braking. - Crisp and positive shifting action. - Compatible only with ADVENT derailleurs. ADVENT 11 - 46T 9 - Speed Cassette With Steel Large Cog: For adventurous rides, a wider gear range is better. With 9 speeds and an 11 - 46T range, this cassette has low gears for climbing and high gears for descending. The gear steps are optimized for an even spread of ratios. - Carbon steel cogs forged for strength and shifting accuracy. - Compatible with standard freehub bodies.