Pro cyclist's guide to bike maintenance: 1) Apply brute force 2) Call for team car | GCN Racing

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After the backlash from upgrading an entry-level bike, we decided to reverse engineer the upgrades to see which ones made the biggest difference in speed. We compare the fully upgraded setup, the stock bike, a tire/tube-only upgrade, and a $6,000-plus pro bike on a challenging test loop. The results prove that tyres and inner tubes are the most cost-effective performance upgrade you can make, saving you a whopping 56 seconds on our test loop! | GCN Tech