Harley-Davidson Sportster 1200 Custom Big Bore Kits
Genuine HD big bore kits and aftermarket alternatives that fit the Sportster 1200 Custom — all years. Select your year for exact fitment and pricing.
Select your year for exact fitment & prices
Genuine Harley-Davidson (2)
Aftermarket for your Sportster 1200 Custom
Confirmed to fit your Sportster 1200 Custom
Aftermarket big bore kits the supplier lists against the Sportster 1200 Custom. Genuine Harley-Davidson is listed above, not here.
S&S Cycle
S&S 3 9/16" BIG BORE KITS FOR EVOLUTION SPORTSTER
In stock
£841.84Iron Pass £799.75£825.00View
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
MCS
Replacement cylinder 1200 Sportster, front/rear. Silver
In stock
£283.88Iron Pass £249.81£258.33View
MCS
Replacement cylinder 1200 Sportster, front/rear. Black
In stock
£317.60Iron Pass £279.49£289.02View