Spark Plugs - '57-'78 XL SHIRTS_RAMJETRACING 5" toward the rider

5" toward the rider

25" from bottom of riser at tree mount surface to bottom of handlebar

Stainless steel mesh insert matches Arlen Ness Inverted series filters wrapped in stainless steel mesh

Manufacturer Part Number: MK687SBK

Spark Plugs - '57-'78 XL SHIRTS_RAMJETRACING 5" toward the riderPlugs have a unique look with their black ceramic body and bold red logo script Insulator is made of 95% pure alumina; features strong resistance to heat shock and superior insulation Multi rib design of insulator eliminates flashover Nickel plated housing prevents oxidation and corrosion Multilayer gaskets and heat crimping process ensure a leak free, gas tight fit Copper core electrode prevents oxidation and corrosion and has good electrical and