Knucklehead Fishtail Mufflers & Extensions handlebar accessories For many Big Twin engines

For many Big Twin engines thru 1976

These fender shells

and the drag pipes have one on the rear pipe only

and measure 8"-wide x 4-1/2"-tall x 2"-thick

0-gallon Standard tank

Knucklehead Fishtail Mufflers & Extensions handlebar accessories For many Big Twin enginesfishtail mufflers and tail Pipe extensions for Knuckleheads from 1936 thru 1947 Different length Fishtail mufflers and extensions that will slip over any 1" diameter Knucklehead head pipe on models from 1936 thru 1947. All measurements shown are overall lengths. Sold each. 1 7 8" DIAMETER FISHTAIL EXTENSIONS These extensions are not baffled. 605 KNU 31" long straight 605A KNU 31" long straight Dago type 605B KNU 31" long upswept 605 4 KNU 36" long