Shimano FC-5800 Chainring 50T-MA for 50-34T

Shimano FC-5800 Chainring 50T-MA for 50-34T Ideally paired with a 34t inner ring; Shimano’s FC-5800 Chainring 50T-MA for 50-34T offers much of the performance of the Ultegra and Dura-Ace versions at a lower cost. Hollowglide technology keeps the weight down whilst the strategically positioned ramps and pins provide rapid gear changes and ensure that the chain isn’t dropped.