Watch GCN Investigates - Are Wider Rims and Tyres Faster

We've seen in recent years a trend of wider tyres on road bikes - the improved contact patch and ability to run lower air pressure can reduce the risk of punctures, improve grip and improve comfort. But are they faster? To find out, Simon's here from the GCN archives testing out some Schwalbe One tubeless tyres on the brand new ENVE SES 4.5 AR Disc wheels - designed specifically for disc brakes.