Scuffed up or lost the axle bolt and cap for the end of your HP Velotechnik trike axle? This is the replacement part.
Installation notes - To install, remove the entire wheel assembly from the trike. Using a small crescent wrench or 9mm allen wrench to hold the axle, tighten the End Cap to 8-10Nm. Reinstall the wheel onto the trike to 13-15Nm.