Motor mounting hardware kit with all bolts, washers, and spacers required for both Alloy and Carbon frame Gen.3 Levo bikes. This newer kit includes three 1.5mm thick alloy washers required for Alloy frame bikes that were not included in the original hardware kit S210500010. It will be normal to have three left over washers after using this kit: Alloy frames - you will have Qty 3 of the 18mm OD x 10.5mm OD x 0.2mm Thick washers left over. Carbon frames - you will have Qty 3 of the 18mm OD x 10.5mm OD x 1.5mm Thick washers left over.