Altra Men's Rivera - Navy Kick and the groove gills allow

and the groove gills allow you to easily cut

The Primer S trail bike is the highest spec’d model in the Primer range

ridged airmesh harness provides ventilated comfort

Bosch Active Line motor capable of sustaining speeds up to 20 mph

Altra Men's Rivera - Navy Kick and the groove gills allowSlimmer. Sleeker. Snugger. This new, open road ready shoe is our first trim fitting FootShape shoe. Transform your road running with the tried and true Altra EGO midsole, a light and breathable engineered mesh upper, and a Neutral Innerflex outsole for flexibility and performance. Go with the flow for all your road running needs with the all new Rivera.