Ollie and Alex are back in the GCN Tech Clinic to answer your burning questions about bike maintenance and technology! This week, we dive into whether unbranded carbon parts from AliExpress are actually safe to ride and why your 28mm tires might not actually measure 28mm once they're on your wheels. Plus, we discuss the best first upgrade for a new bike, the truth about bleeding your brakes, and how to solve recurring punctures. | GCN Tech

This week on the GCN Tech Show, we’re diving into the "dream" cycling products that don’t exist yet but definitely should—from "restomod" mechanical groupsets to silent, dust-free brake pads. We also take a look at the latest Pro Tech news, including Team Ineos’ controversial new kit and wheel sponsor, plus a festive trip to the wind tunnel to see just how aero Father Christmas really is. Finally, we head over to the Bike Vault to judge your latest builds, including a winter commuter with some v

Welcome back to the GCN Tech Clinic, coming to you this week from sunny (and rainy!) Benidorm. Alex and Ollie dive into your biggest cycling tech dilemmas, including whether you should choose a high-spec used carbon bike over a brand-new aluminium model. We also explore the world of ceramic coatings, total system weight, and the realities of running a waxed chain in the UK winter. | GCN Tech