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Ass Savers offers two versions of the Win Wing: one for road bikes with tires up to 38mm and one for larger dirt and gravel tires up to 60mm (2.35″). The one that’s tested here is the gravel version for larger tires. I tried it on two bikes, my Tumbleweed Stargazer with 29 x 2.35” tires and another test bike with 2.4s—the gray one shown in many of these photos. Neil also tested his with 27.5 x 2.6″ tires, as you’ll learn in the video at the bottom of the post.
Recognizing that their ideal product should excel at its purpose then go hide out in your garage as soon as the weather shifts is fundamental in the Win Wing design: it’s remarkably stable while riding, very light, protects riders from the embarrassing spray streak, and is a cinch to take on and off the bike. These two gentlemen could not be any more accommodating if they tried, quality service that is a rare find in today’s crazy world, I can not recommend this company enough! We have yet again rewritten the rules of fender design with our new, ultra-lightweight, clip-on performance mudguard – the radical Win Wing. There’s also a slot on one-side to secure a zip-tie around it, not to keep it from falling off, but as a mini anti-theft feature for when you leave your bike unattended. Ass Savers Win Wing – Pricing, options & availabilityAfter taking a look at the product template document, I sent them a design, and a couple of months later, a big box of them arrived at my doorstep. They looked great, but I still wasn’t overly excited about using one. After so many years without fenders, why start now? Fast forward a few weeks into the cold and damp season, and my tune has changed. Read on to see why in this full Ass Savers Win Wing review, and then scroll to the bottom of the post to watch Neil’s complementary video review. By shielding only the upper rear quarter of the wheel, the Win Wing eliminates spray from reaching the critical areas of the rider with a minimum of material.” An added benefit of the simple strap-on seatstay mount is also full-suspension & softail compatibility. Whether talking about gravel bikes like this URS with a tiny bit of rear wheel travel or the proper travel of the Lux Trail XC/light trail mountain bike – it’s easy to set the fender up so that it maintains tight clearance over the tire throughout the bike’s rear-wheel travel. Perhaps surprisingly, there’s no bounce, no flap and no noise when riding. Everything is held securely in place. This is not really a fender for everyone. Some don’t like the look of this gray recycled plastic loop hanging over your rear wheel. Some really need the total protection of proper full-coverage fenders. And some – like our own Editor-in-Chief – would rather have a wet butt than nasty muddy water bottles. And those are all valid concerns.
The Win Wing Gravel fits practically any gravel bike, protecting the rider in even the worst conditions. No matter the terrain, on-road or off, the Win Wing won’t rattle or jam, and with only 72g, you won’t even notice it’s there.The bike is a Christmas present and so will not see any use for about 5 weeks as we are in November now. There are other clip-on rear mudguards on the market, but the Win Wing has taken a fresh approach to the problem. Made up of only four components, which are easy to assemble, the Win Wing attaches in seconds and can be swapped between bikes with ease. At the heart of the design is the wishbone holder made from glass fiber reinforced PA (polyamide), that attaches to the seat stays with two neatly fitting rubber straps. The rubber straps have been cleverly designed to sit between the wishbone and seat stays to offer your paint some protection. Ass Savers recommends fitting the wishbone close enough to the tire to achieve between 5-10mm clearance to the blade once fitted. The polypropylene blade easily snaps into position onto the studs molded into the wishbone and there are three positions available to allow for varying seat stay angles. A horizontal, or slightly upward tilting blade is optimum. There’s a helpful guide printed onto the underside of the blade to help achieve the best setup.
It also moves the left-side slot away from the edge. So you can still secure the fender on your bike with a zip-tie, but with reduced chance of failure at a weak point there. It may be minimalist, but coverage is impressive if you prioritise a dry rear-end. Russell Burton / Our Media The concept of the Win Wing is tangential protection. Putting the fender just a few millimeters above the rear wheel catches all of those tangential lines of road spray, right at the tire where they originate. The key to understanding how the Win Wing works lies in physics: water and mud leave the wheel in a straight line from the tangential point of release,” says Ass Savers. As the gravel segment expands, cyclists face new challenges. The issue of having dirt thrown in your face is a well known problem among mountain bikers. With huge clearances for wide tires in the front fork, gravel riders are now facing a similar issue.
The Win Wing looks strange at first glance. I am an avid user of the basic Ass Saver (a plastic flap that basically slips under your saddle and as the name suggests, saves your ass) but the Win Wing’s design is really taking things to the next level. Have a look at this BMC URS gravel bike and you can see the seatpost stayed totally clean (or at least as clean as it was before I mounted the fender). But everything below that still gets wet & muddy. Effectively, the Win Wing stops all mud & water from about the seat clamp and higher on most bikes.
The Win Wing Road fits practically any skinny tire bike, protecting the rider in even the worst conditions. Ideal for winter training or if you want to add some comfort to your puristic urban ride. The Win Wing won't rattle or jam, and with only 64g, you won't even notice it's there.Material: Blade - 0.9 mm PP (Polypropylene),Wishbone holder - glassfiber reinforced PA (Polyamid or Nylon) and Strap - TPU (thermoplastic polyurethane). As hard as it is as a Finn, I must admit that once again the Swedes have beaten the rest of the world and come up with a product that is simple in design and application - despite the questionable aesthetics.
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