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Gen 3 Portals are Geared for All SuperATV’s GDP 4” Portal Gear Lift for the Polaris RZR XP 900 is Geared for All. What do we mean by that? Our 4” portal lift is available with 15% or 30% gear reductions. You can get exactly what you want for your riding style and preferred riding environment.
Perfect for Mud Get a 30% gear reduction and start flingin’ mud. With a massive boost to torque, you can turn bigger tires that chew through the thickest bounty holes. When you gear down and go big, your machine will turn into a mud monster. Plus, with a 30% gear reduction you can still use it on the road and tear up trails and rocks.
Perfect for Rocks Put 4” portals and a 30% gear reduction on your machine and get the torque you need crawl over rocks like they’re not even there. You’ll have the clearance to get over anything without scratching up your skid plate, and you’ll have room to run bigger tires. These portals are built for boulders.
Perfect for Trails Get 4” portals and a 15% gear reduction on your Polaris RZR 900 and take on the trail less traveled. You’ll keep that high speed and leave your friends in the dust when you hit a hill or dirt shelf. It’ll bring out your UTV’s true power.
Better Gears Our gears are precision ground and made with 9310 billet steel alloy for high strength and high speed. That means they’re cool and quiet even when you’re hammering down the throttle on the road, and they have strength to withstand every ride.
Stronger Housings by Design Try as you might, you won’t find housings stronger than what we use on our GDP portals. Our housings are smarter, stronger, and more reliable by design. So whether you choose cast or USA-made and CNC-machined 6061 billet aluminum, you’re getting housings that offer unmatched strength and dependability. We’ve got the experience and the riders on the trail to back it up.
Our housings are reinforced in all the right places
They’re built with better oil flow and gearing forces in mind
There are no gimmicks and no vents because vents do more harm than good—we know because we tested them
Advanced Gaskets and Seals Whether you go with cast or billet, both housings use:
Advanced Thermo-Tork® gaskets with excellent oil resistance and a lower deterioration rate than Kevlar gaskets
A sealed input gear and double-lipped output seal
100% sealing coverage throughout so you can forget about oil leaks
Top-Rated Customer Service Still need a little help getting exactly what you need? We’ve got a dedicated team just for portal support. Give us a call so we can get the perfect set of portals in your hands today.
Polaris RZR XP 900 Portal Gear Reduction Recommendations
Gear reductions listed are general guidelines to maintain factory top speed. Installing a larger than recommended gear reduction will result in extra torque and lower top speed. Give us a call for more information.
Polaris RZR XP 900 : 2011-2014
Polaris RZR XP 4 900 : 2012-2014
Available with billet or cast aluminum housing
Cool, quiet, precision ground gears made from 9310 alloy billet steel
1.5 in. diameter 4340 hardened steel drive shaft
No leak bearings and seals
Universal hub fits all major bolt patterns
Comes complete with all hardware, backing plates, brakes lines and instructions
14” or larger wheel required
14” & 15” wheels cannot exceed 4-1/2” backspacing
16” and larger wheels cannot exceed 5” backspacing
Not compatible with dual beadlock wheels
If you have any questions about fitment or this product please feel free to contact us.
You can Text or Call 801-674-2451 any time. If it is outside of our normal business hours (M-F, 9am-5pm) please Text us and we will get back to you as soon as we can.
Thank you for visiting and shopping at Kombustion Motorsports. The following are the terms and conditions that constitute our Shipping Policy.
Domestic Shipping Policy
ALL SHIPMENTS ARE SHIPPED WITH SIGNATURE REQUIRED TO ENSURE YOUR VALUABLE PACKAGE STAYS SAFE.
If specified otherwise from the customer, Kombustion Motorsport is not liable to refund or replace products if they are missing.
Shipment Processing Time
All orders are processed within 3-5 business days unless specified otherwise. Some products require a lead time, and in those cases we will contact you to specify a unique shipping situation. Orders are not shipped or delivered on weekends or holidays.
If we are experiencing a high volume of orders (i.e. sales promotions, special events) shipments may be delayed by a few days. Please allow additional days in transit for delivery. If there will be a significant delay in shipment of your order, we will contact you via email or telephone.
Shipping Rates & Delivery Estimates
Shipping charges for your order will be calculated and displayed at checkout.
International Shipping Policy
Shipments may take a week or more on top of the estimated delivery time. This is due to the package possibly being held up at a customs checkpoint. Kombustion Motorsports is not responsible for any delays due to customs delays.
If you are outside the contiguous United States, you will be responsible for any taxes and duties on any order that you place through Kombustion Motorsports.
Taxes And Duties Are The Responsibility Of The Customer.
If items are shipping freight, the customer is responsible for contacting and communicating with a shipping broker.
Delivery Delays Can Occasionally Occur.
Not all items are in stock at our location. If an item is out of stock at our Utah location, the requested item will be shipped from the manufacturer directly. This can result in multiple shipments for one order.
Thank you again for your order!
If you have question or concerns, please call 801-674-2451 Ext 3