In 1973 the rocker box inspection cover changed to the large single oval style and these won't fit

they are also available for 39mm

This Sportster Frisco mount gas tank will sit up higher on your backbone than the standard tank

They are not made to intimidate with spikes or skulls

#BHC-845 5/16-18 x 1-1/2 inch Length Chrome Button Head Allen Bolt - 10 Pack

KR Style Bolt-On Hardtail Rear Frame Section for 1967-1978 Harley-Davidson Ironhead Sportster Subcategory_Chassis Tools In 1973 the rocker boxFrames are EXCLUDED from the $99 & up Free Economy Shipping special. For more info on frame shipping see the Frames section of the FAQ. Fits Harley Davidson Sportsters 1967 1978 Accepts stock rear wheel, axle and brake Frame mounting hardware and axle adjusters included 4 inch stretch, 2 inch drop compared to stock wheel base Made in the USA Inspired by the early Harley Davidson looped KR style race frames, this bolt on hardtail rear frame section