28mm x 1.0 right hand thread

Hex Size: M17 & M35

Honda : Most 2004-present TRX-450 SPORTRAX and 2003-present TRX350 RANCHER 4 stroke quad models, 2009-present CRF450R, mostCRF450X 4 stroke dirt bike models and 1978-1980 CR250R 2 stroke bike models.

Kawasaki : Most 2003-present KLX110, 2008-present KLX450R 4 stroke dirt bike models and 2008-present KFX450R 4 stroke quad models.

Suzuki : Most 2003-present DRZ110 and 2007-present RM-Z450 4 stroke dirt bike models.

Scooters : Some import Scooters with 125cc-200cc GY6B 4 stroke engine models.