Product Description These single chainrings from Specialites TA are designed for singlespeed use and shine with signature high TA quality. Specifications:Application:Touring & Trekking, City, TrackAttachment:110 mm bolt circle diameter, 5-armTeeth:38 T, 40 T, 42 TGearing:1x7-speed, 1x8-speed, 1x9-speed, 1x10-speedTechnical Information:Material:aluminium (7075-T6)Compatibility:for Singlespeed, Fixie, Rohloff gears, Tandem etc.can be mounted outside or inside, laser engraved on both sidesFeatures:no index systemsymmetrical and centred teethCNC manufacturedblack or anodised silverdesigned and produced in FranceManufacturer Numbers:black 38 tooth:PL-50110339-38black 40 tooth:PL-50110339-40black 42 tooth:PL-50110339-42silver 38 tooth:PL-50110332-38silver 40 tooth:PL-50110332-40silver 42 tooth:PL-50110332-42Contents:1 x TA Single 110 chainring Manufacturer: Spécialités T.A. 41 bis rue de Laon 02150 Sissonne France france@specialites-ta.com