Harley-Davidson Seventy-Two Big Bore Kits
Genuine HD big bore kits and aftermarket alternatives that fit the Seventy-Two — all years. Select your year for exact fitment and pricing.
Genuine Harley-Davidson (2)
Aftermarket for your Seventy-Two
Confirmed to fit your Seventy-Two
Aftermarket big bore kits the supplier lists against the Seventy-Two. Genuine Harley-Davidson is listed above, not here.
S&S Cycle
S&S 3 9/16" BIG BORE KITS FOR EVOLUTION SPORTSTER
In stock
£885.65Iron Pass £841.37£867.94View
MCS
Replacement cylinder 1200 Sportster, front/rear. Black
In stock
£321.40Iron Pass £282.83£292.47View
MCS
Replacement cylinder 1200 Sportster, front/rear. Black
In stock
£286.46Iron Pass £252.08£260.68View
MCS
Replacement cylinder 1200 Sportster, front/rear. Silver
In stock
£239.95Iron Pass £211.16£218.35View