the Gasbox Ironhead frame uses stock motor mounts all around

Engineered to meet or exceed factory specifications

or made-to-order items (such as magnetos) unless there is a manufacturer's defect

This style of race driver has been commonplace in your professional Harley mechanic's toolbox for many years

SS2 Weld-On Complete Seat Spring Mounting Kit - Flat Bottom Subcategory_Full Frames the Gasbox Ironhead frame usesThis kit allows you to mount Bare Knuckle Performance SS2 seat springs to both your seat pan and your frame. This kit includes flat bottom mounts Sold in top and bottom pairs Includes 4 cotter pins 100% Made in USA