Norton Commando Tach Drive Worm Gear (1) - 06-1089 - Choose Part Type Condition:New *****Please note that this part

*****Please note that this part is only compatible with 1970-1972 BSA A50 & A65 models

it will cause erratic idle especially when the RPM's are decreasing

Fits all Triumph 350 & 500 unit twins (Daytona

Etc) from 1959-1973

Thunderbolt & Royal Star) for the year of 1970 with the Export (USA) Market Small Steel "2 Gallon" Tank only

Norton Commando Tach Drive Worm Gear (1) - 06-1089 - Choose Part Type Condition:New *****Please note that this partReplace your broken tach gear with our quality replacements. The original Norton part is 06 1089 and 061089. This gear drives the tach cable on most Norton Commando models. Check your parts book to ensure the best fitment. Please use the drop down menu to select which gear you desire sold each as pictured **Features** Made in England OEM part number is 06 1089 and 061089