Product Description The Shimano 10-speed Chainring for FC-T521 Cranks This Shimano chainring is compatible with the FC-T521 3x10-speed touring crank. It can be combined to form the 24-32-44 and 26-36-48 gradations. In line with the Shimano HyperDrive concept, it contributes to a reliable, fast shifting function in combination with the chain and front derailleur. Specifications:Application:City & Touring, All Mountain, Cross CountryMount:104 mm bolt circle diameter, 4-armTeeth:32 t, 36 t, 44 t, 48 tGearing:3x10-speedTechnical Information:Combinations:24-32-44 T, 26-36-48 TMaterial:steel fibreglass composite (32 t), aluminium (36 t to 48 t) Note:The FC-T521 with chain guard requires a special chainring.Models:32 tooth: Type:AECompatibility:FC-T521 / Deore FC-T611, FC-M610Manufacturer Number:Y-1NL98010 36 tooth: Type:ALCompatibility:FC-T521 / Deore FC-T611, FC-M610, FC-T6010, can also be used for FC-T551Manufacturer Number:Y-1NL98020 44 tooth: Type:AECompatibility:FC-T521, also fits FC-T551, FC-T611Manufacturer Number:Y-1NL98030 48 tooth: Type:ALCompatibility:FC-T521, also fits FC-T551, FC-T611Manufacturer Number:Y-1NL98050 Note:The 24 teeth chainring (Y-1N098010) is identical to the FC-M522 chainring. The 26 teeth chainring (Y-1ME98030) is identical to the FC-M391 chainring.Note to Type Designation:The type designation (one or two characters) helps identify the compatibility of various chainrings with other chainrings. Because the larger chainrings have specially-formed teeth and upward shifting assistance, only particular smaller chainrings will match to ensure proper shifting performance. An XY chainring should only be combined with another XY chainring. This applies to all other types as well. Contents:1 x Shimano FC-T521 chainring Manufacturer: Shimano Europe B.V. High Tech Campus 92 5656 AG Eindhoven Netherlands info@shimano-eu.com