Say goodbye to constant points adjustment and timing headaches

stock part number 58-43630

dual filament bulb so it could be used as a running & brake light or marker light

This includes what you need to make some nice

Triumph Layshaft Needle Bearing - Open Triumph Motorcycle OEM #57-1614 Vendor_KNS Accessories Say goodbye to constant pointsThis is a open end layshaft needle bearing for 650cc, 4 speed pre unit and unit construction Triumph motorcycles. Triumph OEM part #57 1614. This is a Koyo brand bearing, made in the USA. Also available, the Triumph Layshaft Needle Bearing Driver Tool from Lowbrow Customs, which makes installing your transmission needle bearings a breeze!