Fitment: For Honda HELIX CN250 1986-2008 For Honda Elite CH250 1985-1988 Measurement: Inner Diameter (intake side):30mm Outer Diameter (intake side):35mm Inner Diameter (air filter side):45mm Outer Diameter(air filter side): 50mm Parts Number: 16100-KS4-759, 16100-KS4-651, 16100-KFR-842. .
eBay