4 products in this product line SE-471 series SE-471-AL RD proInfo Length : 60 mm. Bent Valve Stem in 90 degree angle for tubeless tire, inflate much easier. Rim hole fit : 11.5mm. Aluminum alloy, can be anodized in different colors. SE-471-Cu RD proInfo Fits Honda GL1800, GL1500 and Universal rim hole .453"/11.5 mm Nickel Plated Brass for Maximum Durability 90 degree metal stems for tubeless wheel, inflate air much easier. Length : 60mm. SE-471-52L RD proInfo Length : 52 mm Bent Valve Stem in 90 degree angle for tubeless tire, inflate much easier. Rim hole fit : 11.5mm Brass, plated Ni or Cr SE-471-60L RD proInfo Length : 60 mm Bent Valve Stem in 90 degree angle for tubeless tire, inflate much easier. Rim hole fit : 11.5mm Brass, plated Ni or Cr