The overall diameter of the tyre in inches.
The width of the tyre in millimetres or inches, as indicated
The diameter of the tyre's inner rim in inches
The dominant tyre for club and endurance racing, the HG1 has been helping riders win championships since its introduction.
• Used for club and endurance racing• Durable tread compound for a longer life• Nylon casing/construction• Suitable for any track surface
