A brilliant performance! The SKS Bluemels mudguard set can not only be perfectly integrated onto the bike but also reliably protects against dirt and spray water. Thanks to the flexible sandwich construction, in which ultra-fine aluminium strips are embedded in a plastic coating, the mudguards are extremely robust, rigid and corrosion resistant.Wheel size , 20"- 29"Tyre widths: 35mm, 45mm, 53mm, 55mm, 60mm, 65mm,69mmColour: Black & SilverMaterial , plastic27.5"-29" 65mm27.5"-29" 69mmSandwich construction made of aluminium/plasticV-stays with fixed bridges for flexible adjustmentASR safety systemBottom bracket cut outsWith its shiny black surface and black fastening components, the Bluemels also leaves nothing to be desired in terms of appearance. The ASR safety system uncouples the stays should branches become trapped between the spokes, so the wheel is unable to jam. The V-stays with fixed bridges guarantee individual adjustment. The bottom bracket cut outs make mounting possible even