RPT-55 remote power trowel TibrocTibroc has introduced the RPT-55 remote power trowel, powered by a 5.5-horsepower Honda GX160 engine. The RPT-55 lets "one person to finish up to 5000 square feet of concrete in one day using only their thumbs on the remote control and without ever having to set foot on the wet slab,” according to Tibroc. Once the engine is started, the direction of movement, trowel pitch, and speed are all controlled from the transmitter. Each spider has five trowels with a speed of 50-150 rotations per minute and a pitch of 0-35 degrees.