The 53/39 Chainring is a high-quality bike component designed for Shimano brand compatibility. Made of lightweight aluminium in sleek black colour, this chainring features a 5-arm mounting type with a distance between bolt holes of 130mm. With 53 teeth and suitable for 10/11 speed bikes, this unit is perfect for improving the performance of your cycling adventures. Used and priced to sell. Priced to sell, any issues let me know before leaving a review. Cheers, Lewis