SuperATV HD11 8in. Portal Gear Lift for Can-Am Defender

Your Can-Am Defender HD11 is built to work hard and player harder, but there's still room for improvement. SuperATV's 8 GDP Portals are the ultimate upgrade. This gives you more torque, better ground clearance, and the ability to run larger tires. Choose between a 45% and 60% gear reduction with a billet or cast housing for maximum power. Take it over the top with SuperATV dual-idler configuration that delivers ultimate strength with a 60% or 70% gear reduction.

What Is a Dual Idler?

Perfection takes time. By placing a second idler gear in the portal box, the load gets spread over twice as much surface area for more reliable torque transfer and the strongest gear set you can get. Two idler gears don't do a thing if they're not mated perfectly, though. Didn't think dual idlers mattered? With GDPs quality and experience, they finally do.

Take on Any Terrain

A 45%, 60%, or 70% gear reduction all give you serious power. You just have to pick one depending on how much torque and speed you're looking for. You'll get the power you need to take on rock crawling, the strength to spin oversized tires, and the control to push through deep mud with ease.

Protect Your Drivetrain with GDP Portals

SuperATV designed its Defender HD11 GDP Portals to put the gear reduction directly in the hub. This keeps your differential, prop shaft, and transmission safe from extra wear and tear. Plus, they keep the same suspension angle as stock, so your axles won't overextend.

Strength That Can't Be Beat

Constant repairs are the last thing anyone wants.

• SuperATV housings are reinforced for gear retention and optimized for oil flow
• Advanced steel alloy backing plates are stronger than chromoly

Advanced Gaskets, Seals, and Bearings

SuperATV portals use:

• Advanced gaskets and O-rings with excellent oil resistance and low deterioration rates
• A sealed input gear and double-lipped output seal
• 100% sealing coverage throughout so you can forget about oil leaks
• Double-angular contact output bearings to prevent premature wear
• Roller idler and drive bearings to maintain perfect gear meshing

Add a Frame Stiffener

Big tires and portals definitely take your Defender HD 11 to the next level, but they also put extra stress on your frame. A SuperATV Frame Stiffener helps reinforce your suspension so you can ride harder with added confidence.

HD11 8in. Portal Gear Lift Fitment

2026

• Can-Am Defender HD 11 Limited
• Can-Am Defender HD 11 XMR w/Half Doors
• Can-Am Defender HD 11 XT
• Can-Am Defender HD 11 XT Cab
• Can-Am Defender MAX HD 11 Limited
• Can-Am Defender MAX HD 11 Lone Star
• Can-Am Defender MAX HD 11 Lone Star Cab
• Can-Am Defender MAX HD 11 XMR w/Half Doors
• Can-Am Defender MAX HD 11 XT
• Can-Am Defender MAX HD 11 XT Cab