I believe the portals are only actually 27-28% but advertised as 30. Somebody correct me if I'm wrong on that. Yeah they give you a lifetime warranty on the boxes but what happens when you break a gear which jams up and you snap that axle. They aren't gonna replace that axle. How much downtime are you looking at when a box fails even if it gets replaced for free? The 95% throttle can be fixed with the module which is around $125-$150. All you'll have to do to revert back from the reduction is buy a new clutch hub and swap the parts back out unless you pay the core fee. It's not an irreversible modification. Stock drive gear is not needed for reduction either, you keep it. Now as far as pro's and cons between the two. The reduction uses gears of the same OEM quality as the stock gears and will last just as long. This isn't something that's gonna wear out and need to be replaced. The portals require maintenance and will have to be rebuilt eventually. They add 150-160 lbs. to the machine. They rob power through the gearing similar to how a supercharger on an engine does. They add more stress to all of the suspension components, ball-joints, tie-rods, etc...not to mention the frame itself where the control arms attach. They are more easily prone to failure. If the machine gets off counter in a hole or on a hill and more stress is put on one wheel that's grabbing more than the others the portal isn't designed to handle all of that load on one corner, it can easily bust a gear. None of this applies to the IGR, it's basically just like the OEM parts but a lower ratio, no power loss, no added weight, no added stress to the chassis of the machine. Even with the added cost of the auto fix module the IGR is still only slightly more than 1/3rd of the cost of boxes. People have been running IGR's in atv's for years with no issues if they're made and installed right. How often have you seen a primary drive gear or clutch gear from an atv or motorcycle engine wear a measurable amount? I haven't. It's the same material as the stock parts just different sizes. I have 15+ yrs metalworking experience and been making atv reductions for several years now.
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