Lifeline essential road tyrelifeline's essential road tyre is the solid tyre you can rely upon to cover base miles with minimal fuss. Offering durability, grip, and speed this tyre provides excellent value for money. Grip and puncture protectionlifeline's essential road tyre contains a refined centre tread to provide great straight line rolling speed, balance, and grip. This essential road tyre lets you accelerate through corners due to the curved shoulders and dense shallow channels.this tyre has been manufactured from 70a durometer rubber compound and has a 60 tpi threads per inch casing, making this essential road tyre light, flexible, and durable. Lurking beneath the surface is a high density nylon breaker band to offer protection from pesky tyre slashing debris. Rack up your base miles, tackle sportives, or go touring with this excellent all round performer.featuresmaterial 70a durometer rubber compound and high density nylon breakerfast rolling centre treadchannelled shoulder tread for wet weather cornering tractionhigh density nylon breaker for increased puncture protectiondurable70a durometer rubber compound for added traction and extended lifespanaramid folding bead for easy installationtpi 60weight 700x23c 230g 700x25c 280g 700x28c 320gbuy lifeline wheels tyres from chain reaction cycles, the world's largest online bike store.