Hastings, 3-1/2" bore piston rings chr/moly. +.005" - L78-84 B.T. SHOVEL 1340CC (NU) L09 Heads are machined to accept

Heads are machined to accept compression releases and manual compression release plugs are included

limited stock

Compatible with stock style top clamps and 1/2-13 threaded

2" lower than a stock Touring model

installed on the stock rear fender

Hastings, 3-1/2" bore piston rings chr/moly. +.005" - L78-84 B.T. SHOVEL 1340CC (NU) L09 Heads are machined to acceptStd cyl. bore: 3. 498" (88. 85mm). 1st ring: 1. 6mm. 2nd ring: 1. 6mm. oil ring: 4. 75mm. Tech tip: Piston grooves vs piston rings. It's not difficult to determine if a Hastings piston ring set will fit a certain piston. You should measure the height of the piston groove in the piston itself. The 2 top grooves will be for compression rings, the lower groove will be for the oil ring. In most cases Hastings oil rings are of the low tension 3 piece flex