Frames are EXCLUDED from the $99 & up Free Economy Shipping special.
For 1957-1985 Harley-Davidson Sportster engines
Includes MSO (Manufacturer's Statement of Origin)
32 degree rake neck 3" up from stock location
Includes horseshoe oil tank mounted to frame
Highest quality available with perfect fit and finish
Made in Cleveland, Ohio, USA.
The Gasbox full frames are the highest quality and best engineered available. This frame allows direct bolt-in fitment for 1957-1981 Harley Ironhead Sportster engines. It will also accept 1982-1985 Ironhead Sportster engines, though the rear motor mount on these years needs unbolted and replaced with the earlier rear motor mount , Harley OEM # 16203-67, so it will directly bolt in place. All 1 inch tubing, completely TIG welded and made in Cleveland, Ohio, USA.
Unlike other custom frames, the Gasbox Ironhead frame uses stock motor mounts all around, with the engine cradled low in the frame rails just like a stock bike. This looks much cleaner and keeps the finished chopper looking lean and handling better with a lower center of gravity. This frame also accepts the stock early style kickstand. The neck has a 32 degree rake and is +3" higher than the stock location This stem size is very common and is found on narrow glide front ends on Sportsters 1982 and later, and on Harley Big Twin front ends, including narrow glide, wide glide, OEM and most aftermarket springer front ends. The rigid rear hardtail section has approximately 4 inches of stretch and is set up to have 2 inches of drop. This means that with a front end and wheels on the bike the lower frame rails sit 2 inches closer to the ground than stock for that perfect stance. SKU 015349 Chrome Rear Axle Kit . the Horseshoe Oil Tank SKU 010404 already mounted to the frame. Gasbox Battery Box Adapter Plate allows easy mounting of all Gasbox universal battery boxes to all Gasbox Full Frames and also features an integrated lower fender support.
The gas tank mounts on this frame are designed for direct bolt on for a variety of Frisco style gas tanks, no welding required!
The following custom gas tanks are a direct bolt on for this frame:
Lowbrow Customs Rear Chain Adjusters for 3/4 inch Axles are a perfect fit with this frame. This frame is designed for use with disc brake rear wheels, it will not work with stock, early Ironhead drum brake wheels. Sportster disc brake rear wheels are a perfect fit, as are Cycle Standard 16 x 3.00 inch rear wheels, such as the Black SKU 010383 or Chrome SKU 010382 . Made in the USA.
Once you receive the frame you will follow the included instructions and contact the Gasbox and the MSO (Manufacturer's Statement of Origin) will be mailed directly to you. This will have the frame's individual serial number (stamped into the the neck of the frame) as well as the purchaser's information. This is needed in most places when titling a custom motorcycle.
NOTE : There are no returns on carburetors, electrical items, full frames, hardtails or made-to-order items (such as magnetos) unless there is a manufacturer’s defect.
NOTE: 1975-1976 models with a left hand shift will require Please be aware these frames are designed for a rear disc brake set up and the factory drum brake rear wheel is not going to work. Additionally you can not use the stock XL front forks that have a 7/8" stem, these frames are designed for using bearing cups that would normally fit a big twin frame and would use 1 inch bearings.
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