Etronix's standard size all metal geared 9kg rated servo is the perfect choice for cost conscious RTR owners looking to upgrade their stock units Ideally suited to crawlers & 18th buggies & trucks it rugged & strong drivetrainwill help eliminate those annoying servo failures Weight 56g 198oz Torque 9kg-cm (5v) 102kg-cm (72v) Dim 408x 201x 38mm Speed 018 sec 60 degree (5v) 016 sec 60 degree (72v) Please note that 50V-72V is the testing range 6V is the usual work load voltage