Biking Uphill… Understanding Gear Ratios By admin | September 25, 2018 Biking Uphill… Understanding Gear Ratios Ratios are used to compare several different gear settings on a mountain bike, and why it is much easier to pedal uphill if you choose the right gear combination! Share this...FacebookTwitterPinterestGoogleLinkedinRedditTumblrStumbleuponYummlyDiggitEmail Posted in Videos