These are universal pod tapered air filters that have a 48mm opening

No more trying to fit a wrench into your rocker box while turning the square adjuster with a crescent wrench

Direct replacement for Triumph and Norton OEM # 61-6019

it threads into the fork tube and you crank it down

Norton and others)

Coped Steel Bungs 1 inch long - 3/8-16 thread - 4 pack Subcategory_Ignition Switches These are universal pod taperedThese threaded, coped steel bungs are 3 4" diameter and are drilled and tapped all the way through with 3 8" 16 thread. Coped for a perfect fit on 1" tubing, tack in place then weld it up, mounts are finished in minutes. 1" in length, measured from the top of the coped radius to the flat end. They are 1018 cold rolled steel for easy welding and are great for mounts of all sorts. Sold in 4 packs. Made in Ohio, USA.