120 cubic inch high performance power train - heads are ported and polished, big valves(static spring pressure 170#), 53mm throttle body (port injected) S&S 625 gear drive cams, roller rockers, adjustable push rods, 2/1 exhaust - air flow is balanced at 650cfm - 11:1 compression, compression releases, independent crankcase venting, oil coiler - engine management is "Power Commander" - 100 0ctane fuel is highly recommended (I use "130 octane Boost" @ 4oz/gal) - the primary ratio has been reduced by one tooth on the compensator sprocket - it runs a "Pro Clutch" which drives a Baker six speed - the motor has 4300 miles since built - Bike features "Progressive Suspension", floating rotors, 21" 80 Spock front wheel - the bike it very reliable for road trips -I purchased the bike new in May 2002, all work has been performed by O'Neills Performance Engineering - the bike is in excellent conditions