Short and stout sidewalls guard against pinch flats and denting from impacts. A generous 25mm internal rim width allows more tire contact with the road which supports you and your gear more safely and comfortably. A reinforced spoke nipple bed prevents spoke nipple fatigue during heavy-duty use. Rim brake mountain bikes, commuting, trekking, or on your tandem. Thin rim tape like our Velotape is required for best tire fit.