Changing Road Bike Wheel Freehubs & Lubing Jockey Wheels | GCN Tech Clinic #AskGCNTech

Can you swap your road bike's wheel freehub to change the cassette from SRAM to Shimano gearing, or should you try an entirely new wheelset? Should you lube your derailleur's jockey wheels? What is that gunk on your rims after you've ridden in the wet? Jon is back in the clinic to answer all of your cycling tech questions 🔧

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