Leon Kaiser wins Sea Otter Girona sprint on unreleased Avona Callis 32-inch bike

Robin Gemperle's 32-inch win came at Unbound Gravel XL — 350 miles of attrition where control matters more than speed. Kaiser just won the same wheel size at 35.62 kph over 109 km, in a sprint finish, which is a different proof point entirely. He said the wheels added descent control "usually found from fitting a suspension fork" — an advantage that apparently doesn't cost you a sprint. The frame itself is a tell: 32-inch wheels don't fit a standard gravel bike, so Avona built the Callis around them specifically. Neither Avona nor Newmen has said anything official yet.

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