720 Big Bore Kit


Fits: DS650 01-07

12:1 compression ratio

Part Number: bbk-720

SKU: bbk_ds720 Category:


720 Big Bore Kit

+5mm big bore kit, includes JE Pistons complete piston kit (11.5:1 compression), a big bore Sleeve and a Cometic top-end gasket kit.  This kit requires your stock cylinder to be sleeved, finish bored and honed.  If you’d like us to do that work, just contact us.

Additional information

Weight 5 lbs
Dimensions 10 x 10 x 10 in