Product Description TA ONE 110 is a chainring with a special tooth profile so that the chainstays in place even without a chain guide. Allows conversion from 3- and 2-speed to 1 x 10/11/12-speed without the front derailleur. Specifications:Application:Cyclocross, Road, Gravel, City & TouringAttachment:110 m bolt circle diameter, 5-armTeeth:38 T, 42 T, 44 TGearing:1x10-speed, 1x11-speed, 1x12-speedTechnical Information:Material:aluminium (7075-T6)Compatibility:road 5-arm cranks with 110 mm bolt circle diameterFeatures:single chainring for conversion to 1-speedalternates between narrow and wide teethCNC manufacturedmatt finishdesigned and produced in FranceManufacturer Numbers:38 tooth:PL-58110339-3840 tooth:PL-58110339-40 sold-out42 tooth:PL-58110339-4244 tooth:PL-58110339-44Contents:1 x TA ONE 110 chainring Manufacturer: Spécialités T.A. 41 bis rue de Laon 02150 Sissonne France france@specialites-ta.com