Ass Savers Win Wing straps-on all-new rear fender to stop spray where it happens

Ass Savers made a name for themselves with super simple fenders that clip under your saddle rails, but their new Win Wing steps the ass protection up a notch by strapping a rear fender almost against your tire. In order to keep your but dry and clean, the lightweight new Win Wing puts the fender at the source of road spray, just where mud & water fly off the tire – and there are versions for road and gravel that offer coverage for pretty much any bike with tires from 19-60mm wide…

Ass Savers Win Wing strap-on rear fender

Ass Savers Win Wing minimalist lightweight strap-on gravel road bike rear fender, Bohemian Border Bash

This new strap-on minimalist Ass Savers Win Wing claims to be unique in offering “tangential coverage” by locating the simple rear fender exactly where spray flies off the rear wheel on the way to your butt. Unsurprisingly, putting the similar simple folded plastic Ass Savers fender right at the wheel means that road spray gets stopped at the source and you stay drier and cleaner.

The trick really comes in the way Ass Savers manages to mount it to your bike securely no matter what terrain you ride… and to make it fit a really wide array of different bikes.

Tech Details

Ass Savers Win Wing minimalist lightweight strap-on gravel road bike rear fender, road or gravel tire clearance

The Ass Savers Win Wing attaches tool-free in seconds to the bike with a U-shaped injection-molded polyamide plastic fender stay bracket and a couple of creatively designed straps that secure it tightly around the seatstays of your bike, also provide a grippy base to keep it in place. They say this makes the fender more suitable for ‘performance use’, keeping the fender lightweight, resilient, and durable enough to handle rough terrain without rubbing at the first hint of an impact.

Ass Savers Win Wing minimalist lightweight strap-on gravel road bike rear fender, Wishbone fender stays bracket

The bracket & straps weigh just 43-46g depending on model, and can fit around stays less than 1cm across or up to around 3cm in diameter. Total weight with the fender amounts to around 64-72g – “minimal material to provide maximum coverage“.

Ass Savers Win Wing minimalist lightweight strap-on gravel road bike rear fender, road wet

Then, the recycled plastic fender blade snaps onto the bracket, with three positions to adjust the fender angle to suit your bike +10°, 0°, or -10°. The goal is to keep the fender somewhat flat-ish and to have it REALLY close to your tire for the best protection. Ass Savers recommends just 5-10mm of clearance between the fender and your tire.

Ass Savers Win Wing minimalist lightweight strap-on gravel road bike rear fender, strap attachment detail

But don’t worry about mud or debris getting jammed inside, the design with stretchy rubber straps will flex out of the way if anything gets stuck between the tire & fender, plus it will never rattle.

Ass Savers Win Wing minimalist lightweight strap-on gravel road bike rear fender, zip-tie anti-theft

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 & availability

Ass Savers Win Wing minimalist lightweight strap-on gravel road bike rear fender, options

Ass Savers’ all-new, made-in-Sweden Win Wing rear fender comes in two sizes Road or Gravel – both available for the same 25-27€ price in many different colors, all with a gray fender stays bracket.

Ass Savers Win Wing minimalist lightweight strap-on gravel road bike rear fender, Staffan

photos c. Ass Savers

The Road version is optimized for ~23-35m wide tires, and the Gravel version for 35-60mm tires – with the limitation really being the clearance of the bracket not the fender’s coverage.

Ass-Savers.com

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TypeVertigo
2 months ago

Interesting design. Certainly better than the OG Ass Savers.

I wonder if they can translate this into a front fender as well? Shouldn’t take a lot of modification I reckon, and one could probably make it so that such a front fender has coverage for behind the fork as well as a short distance forward of the fork crown – say, 5-6 cm or so. Ride fast enough on wet streets and you end up needing that forward projection, lest you literally eat the road muck kicked up by your front tire.

cyclingsurfer
cyclingsurfer
2 months ago

I would certainly consider an MTB version, should they make one.

Owen
Owen
2 months ago

This design minimises spray to the rider and maximises the spray to anyone behind.
Still much better than the og ass saver

fooman
fooman
2 months ago

Real fenders and ground scraping mud flaps is still 10x improvement on this. There’s no shortcut but good on ass savers for trying.