The ThunderMax software contains hundreds of base maps that cover over 80% of popular factory and aftermarket combinations

It is not as durable as cast iron but typically used in high performance and racing applications where rapid heat transfer from the valve to head is important

7/16 threaded

Designed for use in custom applications where 2 of these coils are used for bikes with single plugged heads (2 spark plugs in total) that run a single fire electronic ignition system

Designed for quiet operation

JIMS, 'MEGANUT' TRANSMISSION PULLEY NUT Elstart Sportster The ThunderMax software contains hundredsNut with a built in lock plate. Never a loose transmission pulley again, that is what the MegaNut is all about. The built in lock plate in the Jims MegaNut works with all OEM and aftermarket pulleys. Some aftermarket pulleys may require an additional hole to be drilled and tapped in the pulley, so the lock bolt can be installed. Repl. 35241 06 nut + 35242 06 lock plate + 3595 lock plate bolts. Note: See 978332 for JIMS socket tool. Fits: > 07 21