Description Reviews When mounting your Sparco Competition Seat, the use of Side Mounts is necessary for proper installation. Side mounts have mutliple side holes that provide a customizable mounting position. All Aluminum construction available in powder coated black only. The 90 degree Aluminum Side mount is ideal for vehicle applications that have limited room for seat mounting. The smaller footprint allows for more mounting options. Technology Powder coated for superior protection Weight - 2.5 lbs per set These mounts tend to work better with the wider seats like the L and XL Not Returnable.