WorldwideUnited StatesCaliforniaLa Cañada FlintridgeCommonwealth AvenueWorldwideUnited StatesCaliforniaLa Cañada FlintridgeCommonwealth AvenueCycling Climbs in Commonwealth Avenue There are 2 cycling climbs in Commonwealth Avenue.Clicking on the climb category column will toggle between category and difficulty score.NameDistanceAvg GradientTotal ElevationClimb Category1.Foothill to Green - Frank Challenge1.58 km5.8%91 mCat. 42.Commonwealth - Lynnhaven - Princess Anne1.56 km5.8%89 mCat. 4