MotorGuide has equipped the R3 55 Digital Transom-Mount Trolling Motor with Digital Power Management Technology, an advancement that acts like an onboard brain, delivering precise variable speed control that conserves battery power and equals more time out on the water. This technology monitors your motors amp-draw, heat dissipation, output and other vital parameters, resulting in a cooler-running, longer-lasting, more durable motor with an extended service life. Ergonomic, extending, Twist-Tiller handle with variable speed control puts you in complete control. Aluminum R3 transom mount delivers uncompromising strength, rigidity and durability, so your trolling motor is locked in place. Taper-Lock Mount offers seven adjustment points and its one-touch, slide-depth adjustment collar allows you to raise and lower the motor/shaft to match up with constantly changing boating conditions. Reversible motor head can be used at the bow or transom. Durable composite shaft, solid aluminum and steel lower unit, and stainless steel propeller shaft assure years of reliable operation. Thrust: 55 lbs. Volts: 12. Shaft length: 36, 42. Control:Hand/Throttle drive. Speed: Variable. Type: Transom Mount Trolling Motors.