We Made Our Bike From the Future Less Terrible | The Grim Donut Part 3

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If our half-baked effort resulted in the first Grim Donut going six seconds quicker than a production bike, what would happen if we sat down and took it a bit more seriously? Enter, Grim Donut V2 Supported by Trailforks Pro: https://b.link/v63weq Get unlimited access to all the best mountain biking