Tektro Mod A4 Post Mount Adapter for Rear Disc Brake 180mm RGroup_2E3E60348D6E54B41402B287D06B664E7C8657A1 supporting both 1x and 2x

supporting both 1x and 2x configurations

is perfect for rides with varying intensity

5x2" is a durable

while the slim inner stop allows easy access to shifters

Tektro Mod A4 Post Mount Adapter for Rear Disc Brake 180mm RGroup_2E3E60348D6E54B41402B287D06B664E7C8657A1 supporting both 1x and 2xThe Tektro Mod A4 Post Mount Adapter for Rear Disc Brake helps you fit and align a rear disc brake using the post mount standard, making upgrades and wheel or brake setup changes smoother. It provides a stable, secure mounting interface so your braking feels more consistent and predictable, with an easy path to get your setup working correctly on compatible frames.