Dive into the details of Stone 110bcd Double Chainring for Shimano 105 R7100 UT R8100 DA R9200 Road Bike Round 52 36T 53 39T 54 40T 50 34 48 33 46-32T 2X and see what sets it apart. Created with one goal: to make your tasks simpler and more productive. Browse the latest deals at Ehamepx.baby — shipped quickly and reliably.