Endurance Innovation

Adam Kerin Returns

Episode Summary

Adam Kerin, founder of ZFC, is back to talk about 1x, big rings, cross-chaining, and to chuck just a little shade at one of cycling's largest brands.

Episode Notes

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• 5:45 the advantages of large chainrings and cogs
• 13:00 the drivetrain efficiency shortcomings  of SRAM AXS road
• 14:30 how efficient are 1x drivetrains?
• 16:30 the reason behind the prevalence of chain drops in road 1x systems and why chain catchers are key
• 22:45 the difference in efficiency between chain brands
• 29:30 nerding out gear inches and with gear-inch calculators
• 36:15 the efficiency cost of cross-chaining
• 40:30 the effect of cassette size on cross-chaining losses
• 48:45 the 105% rule of tire width to wheel width

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