S&S CYCLE Big Bore Cylinder Set — 4.250" bore, Black Granite – 18-23 Softail, 17-23 Touring, 17-19 Trike
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SELECT YOUR VEHICLE TO VERIFY THE FITMENT
Bolt-on design for straightforward installation.
Bored slightly under nominal size; not honed.
Made in the USA.
Manufacturer recommends specific head bolts for big bore applications.