Do you know your progressive siping from your ETRTO?! Tyres divide opinion like no other bike component and their performance can dramatically affect not just how your bike feels on the trail but where you end up at your next enduro race.  Rather than just battle through Ruaridh and Ric's own (often non-sensical) opinions, we enlisted the help of Ken Avery from Vittoria Tyres. Senior Vice President of Product, Ken is first and foremost a mountain biker and has moved from racing at UCI-level to designing some of mountain biking's best known rubber. Enduro racing is a brand-new challenge however and represents a very delicate balancing act for tyre designers.  In this episode, we talk about our own tyre-based misfortunes, how we got on with our Vittoria tyres last season, what we all should be looking for and thinking about when it comes to tyre choice. Also, what does the future hold for e-bike tyres and how does a bike handle with 65psi in the front tyre?!