Athena 07-10 Honda CBR R 125 67mm Bore 166cc Big Bore Cylinder Kit (ECU included)

Athena Polaris Predator 500 99.2mm Bore Stock Bore Cylinder Kit

Athena 06-14 Yamaha YFM 700 Raptor 102mm Standard Bore Cylinder Kit

Athena 14-15 Husqvarna FC 350 90mm Cylinder

Athena 08-12 Suzuki RM-Z 450 100mm Cylinder

Athena 2004 Aprilia MX 50 40mm Bore 50cc Standard Bore Cylinder Kit

Athena 01-08 KTM SX 65 Complete Big Bore Cylinder Kit

Athena 06-14 Honda TRX 450 ER 96mm 450cc Standard Bore Cylinder Kit

Athena 07-09 Suzuki RM-Z 250 83mm Cylinder

Athena 13-16 Kawasaki KX 250 F 83mm Cylinder

Athena 14-16 Husqvarna FE350 90mm Cylinder

Athena 03-16 Suzuki DR 125 Z Complete Big Bore Cylinder Kit

Athena 11-12 Kawasaki KX 250 F 83mm Cylinder

Athena 09-10 Kawasaki KX 250 F 83mm Cylinder

Athena 04-11 Yamaha YFZ 450 S 98mm 478cc Big Bore Cylinder Kit

Athena 2007 Suzuki RM-Z 450 100mm Cylinder

Athena 18-19 Yamaha YZ450F 102mm Bore 497cc Cylinder

Athena 10-13 Yamaha YZ450F 102mm Cylinder

Athena 09-15 Kawasaki KXF 450 100mm Cylinder

Athena 02-08 Honda CRF 450 R 100mm Cylinder

Athena 10-18 Suzuki RM-Z 250 83mm Cylinder

Athena 02-24 Kawasaki KX 65 Stock Bore Complete Cylinder Kit

Athena 06-08 Kawasaki KX 250 F Stock Bore Complete Cylinder Kit