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Sportster Frame Modifications

Life's a bitch...   Thank God there's Harleys...

To improve the looks of our Ironhead oldschool hardtail Bobber we made the Sportster frame modifications as shown on these photographs. We cut off the stubs behind the shock absorber bolt holes. This will create a more even flow of the lines of the stock harley frame into the top braces of the bolt on hardtail subframe that we are going to mount.

Photo of modification to pre-1973 Ironhead Sportster frame for bolted subframe hardtail conversion - by Harley Oldschool Bobber. Note the black cut lines.


Photo of Modifications to Harley Davidson Sporster Frame for Bolt On Hardtail Conversion - by Harley Oldschool Bobber. Here T is handling the angle grinder while L keeps a watchful eye.


BEFORE Cutting and grinding:

Photo of modification to pre-1973 Ironhead Sportster frame for bolted subframe hardtail conversion - by Harley Oldschool Bobber.


AFTER Cutting and grinding:

Photo of Modifications to Harley Davidson Sporster Frame for Bolt On Hardtail Conversion - by Harley Oldschool Bobber.


Photo of modification to pre-1973 Ironhead Sportster frame for bolted subframe hardtail conversion - by Harley Oldschool Bobber. L used a Vernier caliper to measure the required size of the bolt holes. We are probably going to fix the hardtail subframe to the stock Harley Sportster frame using a pair of sturdy 16mm bolts.


Yes yes, to be continued...   ;o)