"You should buy this Lambda Sensor Blanking Bolt (Brass) M18 X 1.5 ->M10 X 1.25 "

A bolt in a motorcycle is a threaded fastener used to join or secure components together. It typically consists of a head and a shaft with external threads that engage with a corresponding nut or threaded hole. Bolts are used in various applications, including assembling engine parts, mounting accessories, and securing frame components.