39mm Fork Shrouds do not work on the 48 model Sportsters

This Top Dead Center (TDC) tool makes locating top dead center on your 500/650/750 c

discreet installation

Fitment: 1-1/2

From forged brass construction

Main Jet 190 for Concentric or Monobloc Carbs Brand_Pro One Performance Products 39mm Fork Shrouds do notThese replacement main jets for your Amal carburetor come right from the factory, don't be fooled by substandard knockoffs that are out on the market! Use these to tune in your carb by either increasing or decreasing your main jet size, which affects the flow of gas into your carb once you start using the throttle. Refer to your manual for further jetting and tuning information. Sold Individually.