Can You Upgrade Bike Derailluer?
Can You Upgrade Bike Derailluer? The higher the grade of Shimano rear derailleur, the more gears it can handle. For both road bikes and MTBs, 12-speed is the maximum number of gears supported. Of course, upgrading between 11-speed derailleurs will not change the number of gears supported. How much does it cost to upgrade derailleur?