Yamaha Viking 4" Portal Gear Lift Portal Housing Material:Cast and as such

and as such

and unfortunate rollovers without missing a beat

18” wheels cannot exceed 4-1/2” backspacing

Get ready for a whole new level of ATV Tire or UTV Tire performance

Designed for extreme-pressure motorcycle applications

Yamaha Viking 4" Portal Gear Lift Portal Housing Material:Cast and as suchAvailable with billet or cast aluminum housing Dual idler gear configuration maximizes strength Cool, quiet, precision ground gears made from 9310 alloy billet steel Increases width by 4 in. per side (8 in. total) 1. 5 in. diameter 4340 hardened steel drive shaft Housings use Thermo Tork gaskets or O rings that dont let anything through Universal hub fits all major bolt patterns Gear reduction reduces stress on your drivetrain Dual idler gear