Gasbox Chopper Rigid Frame for Ironhead Sportster's

Made 100% in house at The Gasbox.

CNC bent tubing, TIG weld construction, CNC laser and bent tabs.

Rear of frame is roughly 4” longer than stock with 2” of drop.

This frame has a neck height of +3" and has 32 degrees of rake, for a perfect stance with a 4" over front end and 21" wheel. 

Accepts 1” front fork stem.

Disc brake only rear for 3/4” axle.

The frame has mounts for and early style sportster gas tank, early style kickstand, and integrated upper oil tank mounts for horseshoe oil tank #010404

You can choose to order with standard sportster gas tank mounts or frisco tank mounts. You can also order with the oil tank (010404) mounted. This means the lower oil tank tab is welded onto the frame and the oil tank is installed with all hardware. 

Requires 1957-81 (16210-52) front motor plates and 1967-81 (16203-67) rear cast motor mount.

If you have a 1982-85 Model, you will need to change to these motor mounts.

All pre 1976 engines with the right side shifter, will need custom controls made.

MSO included. This is required when changing frames in certain states.

These are built to order. please allow 7-14 days before shipping.

International Shipping is available.

Due to dimensional weight calculations all international orders will ship via DHL Air Freight

Contact us for an accurate shipping quote