ZTR Alpha 400 is a semi-aero, extremely durable, lightweight rim that can be run tubeless or with a tube
- ZTR Alpha 400 features Bead Socket Technology (BST) and an internal arch design based on Stan's mountain rim technology
- BST features a wider inside rim cavity with shorter sidewalls resulting in decreased rolling resistance and a more compliant ride quality
- Recommended for both road and cyclocross use
- For use with standard tires or fully tubeless compatible with Stan''s yellow tape and valve stems sold separately