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The 50/20 gear is versatile for pavement adventures, but if you're heading up or onto dirt, opt for the 22t cog. Coastline Cycle Co. The One SSRX 650b bike. © Cyclocross Magazine

The 50/20 gear is versatile for pavement adventures, but if you’re heading up or onto dirt, opt for the 22t cog. Coastline Cycle Co. The One SSRX 650b bike. © Cyclocross Magazineundefined