The official ENVE tubless kit for your M Series MTB wheels features custom-cut tapes and valves for a flawless setup. This high quality, simple and functional solution is designed specifically for each M Series wheel rim width to ensure a millimetre-perfect fit. The tubeless valves feature removable cores so you can easily refresh the sealant when required.  The kit is suitable for one pair of wheels.Rim Model - M525Valve Stem F/R - 47mm/47mm,Tape Width - 29mm,Tape Colour - Red.Rim Model - M630Valve Stem F/R - 47mm/47mm ,Tape Width - 34mm ,Tape Colour - Red.Rim Model - M635Valve Stem F/R - 47mm/47mm ,Tape Width - 38mm ,Tape Colour - Red.Rim Model - M60HV/M70/M90Valve Stem F/R - 47mm/47mm ,Tape Width - 29mm ,Tape Colour - Black.Rim Model - M70HVValve Stem F/R - 47mm/47mm ,Tape Width - 34mm ,Tape Colour - Black.