Renthal integra stemrenthals challenge with the integra stem was to keep the strength stiffness and durability of the larger 35mm diameter package at the same weight as the 31 8mm equivalent the strength stiffness and durability were all matched to the 31 8mm equivalent with an average of just 15g added to the integra the new integra 35 direct mount stems feature the same lightweight 6 bolt design as the original integra ii and renthal have improved the structure of the stem the integra 3