Rear mudguard Ass Savers Win Wing MTB Roks

The Ass Savers Win Wing MTB Roks is a rear mudguard that protects the rider from the knees upwards. It weighs 114 grams, fits all types of MTB bikes with 26" to 29" wheels, and is suitable for tires up to 3,0" (76 mm) wide. It attaches to the frame without tools in seconds.

• Dimensions: 415 x 115 mm
• Thickness: 0.9 mm
• Materials: blade – PP, mounts – PA, strap – TPU

The Win Wing MTB is designed for wider tires and different frame geometries. Its length-adjustable, reinforced wishbone is adapted for knobby tire profiles, while the larger, structurally enhanced blade is designed for mountain bikes. The ROKS design draws inspiration from the visual expression of the 90's MTB era.

How the mudguard works

Water and mud leave the wheel in a straight line from the point where they separate from it. By shielding the upper rear quarter of the wheel, the mudguard diverts spray away from critical areas of the rider using minimal material.

Installation and adjustment

For the mudguard to work properly, it needs to be installed close to the wheel. For maximum coverage, aim for approximately 10 mm of tire clearance. The optimal horizontal position places the wishbone pin at the highest point of the tire. Adjust the wishbone length to suit the frame geometry.

The blade angle has four settings to accommodate the angle of the seat stays. Choose a horizontal position or one with the tail raised; a tail-down angle reduces the mudguard's efficiency. Pull the TPU straps as tight as you comfortably can by hand. If the mudguard is unstable, try the next hole in the strap.

Construction and care

Soft rubber feet gently hug the frame. Anything attached to a bike for an extended period can leave marks, so frame protection stickers are recommended where the Win Wing is attached if you want to preserve the bike's appearance.

The mudguard can flex in the event of an accident, and its design helps prevent large pieces of debris from jamming against the wheel. The glass-fiber-reinforced wishbone holder is flexible and tough, and the rubber straps are durable.

Before use, the flat blade needs to be properly pre-folded. The scoring lines are designed to provide locking, self-centering, spring loading and material endurance. For proper performance, read the instructions or watch the instruction video.

Materials and manufacturing

The black blade is made from 50% recycled PP. The Win Wing is designed for efficient shipping and easy recycling. Each component can be purchased separately for repair or upgrading. The Win-Wing is 100% made in Sweden in ISO 14001 certified factories.