Fastest Known Times (FKTs) are individual time trials raced over typically mixed-terrain ultra-endurance routes.

A long-established racing format in the thru-hiking and backpacking worlds, cycling FKTs have surged in popularity in recent years. 

In today's episode of the BikeRadar Podcast, custodian of fastestknowntimes.org.uk and ultra-endurance racing legend Molly Weaver explains what FKTs are, their rules and how to take one for yourself. 

Weaver turned pro in 2015, riding for Matrix Fitness Pro Cycling, before wrapping up her pro road career in 2018 riding for Trek-Drops. 

Weaver has gone on to become a legend in the ultra-endurance scene, competing in this year’s Atlas Mountain Race, the Trans Pyrenees, the GB Divide, the Highland Trail 550 and more.

At the time of recording, she holds no fewer than eight UK FKTs. She’s also one of our only guests to have their own Wikipedia page.

Weaver is joined by deputy editor Jack Luke and senior videographer Robyn Furtado – the only person on the BikeRadar team with the necessary experience to talk with authority about what it takes to race an ultra.

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