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Classified HUB - How it Works and Efficiency claims: Part 1
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The Front Derailleur Killer? | Classified Powershift Hub Gear First Look
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NEW Shimano CUES Groupset | Engineering Analysis | What you need to know
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CESSPIT Engineering: $3000 Bike SCAM Exposed by Autistic Engineer. OPEN Cycle threaten to SUE!
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Bicycle hubs - A complete re-design.
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Brilliant DIY Bearing Puller from Recycled Gears – Genius Hack!
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Your Tires Could Be Costing You Minutes. Tire Rolling Resistance with Josh Poertner
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