Foot Rests The footrest socket is mounted in the forward end of the seat side-rail. It is 1/8 inch above the seat pan, and well below any cushion. It can be inverted, giving a 1-inch height above the seat pan. The post or pin that plugs into the socket is a part of the footrest removable hanger. The footrest hanger lifts to remove and lifts partially to swivel. It has an optional lock down. The pin, that drops into the seat frame socket, has a frangible connection to the down tube knuckle. A tension bolt is necked down to fail at a point just short of the force that would bend the down tube. This causes separation of the legrest assembly at time of severe overload impact. An alternate grade 8 tension bolt can be used that would force failure to another component and may be a better alternative in some cases. Spare fuse bolts and the two different nut driver tools for the user are furnished with the WmegaTrac® and should be specified by the user as part of the wheelchair delivery along with the owner's manual, warranty card, and battery charger. The leg rest hanger down tube made from 4130 aircraft steel tubing and is very strong. The foot rest extension tube telescopes into the down tube with an expanding internal nut like a bicycle handlebar mount. To reduce the chance of impact damage, the expanding nut will break loose and let the footplate swivel away from the force of impact, requiring readjustment. That force will be quite high, but less than the force required to break the necked tension bolt. The result of this design is that there are two defenses against damaging the footrest and seat frame. The first of these requires a 1/2-inch wrench to readjust the footplate rotational position, and the second requires an Allen and a Socket wrench and a replacement necked down 1/4-inch bolt from TEFTEC. The user must be aware that any impact to the footrests is potentially injurious to their lower limbs and vigilance to guard against potential impact must be exercised.