Panaracer: 
Ideal Use: All-Year, All-Condition road riding
The Catalyst is an all-new, all-year road tyre from Panaracer. 
The Catalyst is both fast and nimble with the right tread pattern to cope with all conditions.  The Catalyst tyres represent excellent value and feature:
• Edge to edge file tread for minimum rolling resistance while maintaining grip
• Specially angled side grooves for traction in really rough conditions
• Strong yet supple casing for speed and agility while remaining robust
• Steel bead
• Weight - 320g