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Win Wing MTB Stealth

€33.00


More Room For Rubber!



  • Full backside rider protection from the knee and up
  • Ultralight - 114 grams
  • Fits all MTB types from 26" to 29"
  • Attaches in seconds without tools
  • Suitable for tire widths up to 3,0" (76 mm) 

The highly anticipated Win Wing MTB has finally arrived! We've brought our successful concept of tangential coverage to the world of trails and dirt. To accommodate wider tires and diverse frame geometries, we've redesigned the Win Wing from the ground up.

Dark is more. The ultra black Stealth design is the most popular design in the Win Wing line up and it is of course available as Win Wing MTB as well. 

Featuring a length-adjustable and reinforced wishbone, specifically adapted for knobby tire profiles, and a structurally enhanced, larger blade, the new design ensures optimal protection on virtually any mountainbike. Whether tackling rugged trails or muddy paths, the Win Wing MTB is built for ultimate performance and coverage.


Looking for something on the front? Check out our Mudders!

Technical data 
Weight: 114 g
Material: Blade - 0.9 mm PP (Polypropylene),Wishbone holder - glassfiber reinforced PA (Polyamid or Nylon) and Strap - TPU (thermoplastic polyurethane).

Tangential Coverage  
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. 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.

Mount right, mount tight 
For the Tangential Coverage to work properly, the mudguard needs to be installed very close to the wheel. Aim for ca 10 mm tire clearance for maximum coverage. The optimal horisontal position is to have the wishbone pin positioned at the zenith of the tire. Adjust the length of the whisbone to achieve the optimal position for your frame geo.

The right angle
Just as important as a tight fit is the angle of the blade. There are four different settings to compensate for the angle of your seat stays. Choose the one that allow a horizontal or a tail-up position. Avoid a tail-down angle as this will reduce  the efficiency of the fender.

Strap it hard
The straps are made from ultra-tough TPU and should be pulled as tight as you can comfortably do by hand. If you experience that the mudguard is not stable, try to use the next hole in the strap.

Protect what you love
We have made the Win Wing as kind to your bike as possible with soft rubber feet that gently hugs your frame. However, anything that is strapped to your bike for a longer period of time will leave marks. If you are very keen on maintaining that new bike look, please remember to install the frame protection stickers where your Win Wing is attached.

Anti-Jam 
As sturdy as it is, the design of the Win-wing allows it to flex in case of an accident and it's constructed to not jam in case of large chunks of nature get stuck to your wheel.

Reliable
Thanks to it's sophisticated simplicity and careful choice of materials, the Win-Wing is virtually indestructible. The glassfiber reinforced wishbone holder is both flexible and tough and the rubber straps are virtually indestructible.

Pre-folding
The secret to transforming a flat piece of plastic into a functioning mudguard lies in the pre-folding prior to use. All the scoring lines have been carefully engineered to achieve locking mechanisms, self centering abilities, spring loading and material endurance. Please take the time to properly read the instructions/see the instruction video to ensure the best performance.

Sustainability
The black blade is made from 50% recycled PP and the Win Wing has been designed for efficient shipping and easy recycling. Each component can be purchased separately, making repairing and upgrading convenient. The Win-Wing is 100% Made in Sweden in ISO 14001 certified factories.

>> LINK TO INSTRUCTION/MOUNTING VIDEO

Customer Reviews

Based on 7 reviews
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O
Olivier
works super well

Was already super happy with the Gravel-version on my gravel bike that I've been using for quite a while, was waiting for a version for MTBs/29+ bikes and super happy it's finally here. Fits very well on my bike (Bombtrack Beyond+ ADV) and keeps my back clean even on super muddy descends. Using 2.6" tires. Also extremely stable just as the gravel version - had bad experiences with other fenders of that style from other companies that would eventually go down and touch the tire, but this one is super relieable. Can fully recommend!

S
Steven Marshall
Great mudguards

Easy to fit and adjust to bike. Do the job without being obtrusive

A
Acidham
Surprisingly Stable on Trails

I was honestly surprised how stable the Win Wing MTB Stealth is. I had my doubts at first, especially with how minimal the design looks – I expected it to rattle or shift on rough trails. But once installed properly, it stays firmly in place even on bumpy terrain. It’s lightweight, doesn’t get in the way, and keeps your back noticeably cleaner. Great piece of kit for riders who want simple, effective mud protection without bulky hardware.

A
Alexander Redchenkov
bigger = better

This is my third mudguard from Ass Savers (also own WinWing Gravel and Fendor Bendor Big Detour) - even better mud protection (for a 2.1" tire), light weight and cool design.

D
DinuA
Excellent product

Very useful, strong and easy to fix, nice design