Chain Rider Set Product Type Chain Rider Set For Chain Number 35 For Number of Strands Single For Chain Pitch 3/8 in Chain Rider Width 37 mm Idler Bolt Thread Size M8 Idler Hole System of Measurement Metric Length through Bore 45 mm Number of Chain Riders 1 Standards ANSI DIN 8187 ISO 06 B-1 Bearing Closure Double Shielded Bore Diameter 6 1/2 mm Chain Number 35 Compatible with Brand Rosta Compatible with Series 11-15