Designed for riders operating in extreme cold, the SP1 Thumb Warmer w/Lighted Switch provides targeted thermal protection for the throttle hand. This unit mounts securely to the backside of the throttle lever, allowing heat to transfer directly through the lever material to keep the thumb warm during low-temperature conditions. Its universal design ensures compatibility with all OEM-style levers, making it a straightforward addition to any powersports setup.
The device features a lighted switch for clear operational feedback and is engineered for easy installation. With a low voltage draw, the warmer integrates efficiently into the vehicle’s electrical system without placing significant load on the battery. This combination of direct heat transfer and minimal power consumption offers a practical solution for maintaining dexterity and comfort in harsh environments.