Sigma Sport Base 400 Computer. Less is more is the design philosophy so ably carried out in the Sigma Sport Base 400 computer. If your riding only requires the absolute bare minimum of cycling functions speed, triptotal distance, ride time, and a clock in a tidy, compact package then this is the perfect solution. It's wired for superb reliability and is waterproof, too, in case you get caught out in the rain.
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