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Acker's rims were from Velocity USA. He requested custom colors for the annodized alloy rims. Matt Acker's Salsa Warbeard. 2018 Gravel Worlds. © Z. Schuster / Cyclocross Magazine

Acker’s rims were from Velocity USA. He requested custom colors for the anodized alloy rims. Matt Acker’s Salsa Warbeard. 2018 Gravel Worlds. © Z. Schuster / Cyclocross Magazine