Heavy Duty

Heavy Duty Gear Guard

Spectro Heavy Duty Gear Oil is a premium quality lubricant formulated specifically to run in motorcycle transmissions to prevent rust, corrosion, oxidation and to combat foaming and gear pitting. Formulated specifically for Big Twin Transmissions and dyed red, it reduces drag, friction losses, wear, and extends gear life. GL-5 rated.

85w140 R.HDGG 12/1 quart/case
85w140 W.HDGG 5 gal pail
85w140 X.HDGG 16 gal drum

gearGuard