Check the listing for details. Chinese Clone, Predator Flywheel Offset Timing Keys, Go Kart, Mini Bike (3 Pack. Condition: New. Listed at 9.99 USD. Flywheel Offset Timing Keys (3 Pack)These keys fit ALL Chinese Clones, Predators etc under 8hpWe offer keys from .020 (#2) through .100 (#10) offset... PLEASE READ BELOW STATEMENTWhen you order be sure to send us a message at CHECKOUT of what number of keys you want.. You can mix them if desired..If you do not make a selection we will ship the ones we sell the most of. Here is some good info on Key usage ** Predator 212 Engines and ALL Chinese Clones 160-212cc engines ** Stock Cast OEM Flywheel, 16-18 degree preset (#6 or #7)** Our Cast Alum 3.1 lb Flywheel, 17-18 degree preset ( #8, #9, #10 )** PVL Flywheels ,28 degree Preset ( #4, #5, #6 )** Slip Stream Silver FW Preset @ 34 degrees (Clones & Non Hemi) ( Std stock key or #2 )** Slip Stream Gold FW Preset @ 28 degrees (HEMI Only) ( #4, #5, #6 )** ARC Billet Alum FW (Made before 2014,Date stamped) 28 degree preset (#4, #5, #6 )** ARC Billet Alum FW (2014 or newer) 32 degree preset ( Stock key, #2, #3, #4) ********* Preset is what the flywheel is made at using the stock key.. ********* All settings above is when using Gasoline, if using Methanol bump it up 2 key numbers on average