WEST LAFAYETTE (AP) — Two Purdue University students are working to rev up interest in a custom-made electric skateboard motor.

Engineering students Joe Carabetta and Evan Merz created a modular attachment that can transform skateboards into electric boards that can hit speeds of 25 mph. They’ve named the product and their company Kickr.

The Journal & Courier reports users step on a custom throttle pad, which sends a signal to the motor that spins the wheel.

A patent is pending. The pair are now hoping to market the device and sell it for about $400 each.

They have launched a Kickstarter campaign to raise money to start production.