This post contains affiliate links. As an Amazon Associate I earn from qualifying purchases Sugino XD600 Tandem Crank Arms are sold individually.Individual arms, forged 4-arm design74/110mm, no ringsItem SpecificationsColorSilverWeight290gIntended UseTandemSpindle Interface TypeSquare Taper JISSpindle Length116mmBolt Pattern5-Bolt, 4-ArmChainring BCD74,110mmArm Length170mmCrank Intended UseTandemDefined ColorSilver Product Features Individual arms, forged 4-arm design 74/110mm, no rings This post contains