How much difference is there between a Canyon superbike with the Shimano Dura-Ace R9170 hydraulic groupset, and a bike bought from eBay for £90? Matt and Si compete in four challenges: climbing, descending, braking, and time trialling, to see how big the difference is between the two bikes. In association with @RideShimano 👉 https://gcn.eu/Shimano Useful Links: Adventure Documentaries, Exclusiv