I bought this for my new Revert 4 to haul my kids 20" mountain bike and it doesn't work at all (unless you're ok with major damage to the bike). The fork leg comes into direct contact with the wheel hoop. It doesn't just barely touch on occasion as you hit a bump in the road, it's smashed against the metal. I also tried with two other 20" wheeled bikes (one without a suspension fork) and all had major bike/wheel hoop contact. Further, the wheel is much smaller than the hoop so it's able to move rather freely even when cinched down with the rubber wheels straps. If I were actually able to use this and hit a large bump I'm almost certain the tire would hop off the ledge of the adapter, which could be pretty catastrophic. Finally, the rear wheel strap of the revert doesn't see very secure with such a short wheelbase bike (and my kids MTB has a very long wheelbase for a 20" bike). If you have a non suspension 20" wheel bike, there's a good chance the rear wheel won't even reach the crossbar where it's supposed to rest. I'd really like to know which bikes Thule used to test this as I can't understand how it would work with any 20" wheel bike on the market. Needless to say, I'm extremely disappointed as the main reason I bought the Revert was to carry 20" and adult mountain bikes. All in all, I don't recommend you buy the Revert if you hope to carry 20" wheeled bikes (because you won't be able to without major bike damage).
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