Non trovo il 12-28 però sul 105, solo 12-27 o 11-28
Option 1
11-25 Sprocket Sizes 11-12-13-14-15-17-19-21-23-25 Titanium Sprockets
Option 2
11-28 Sprocket Sizes 11-12-13-14-115-17-19-21-24-28 Titanium Sprockets
Option 3
12-25 Sprocket Sizes 12-13-14-15-16-17-19-21-23-25 Titanium Sprockets
Option 4
12-27 Sprocket Sizes 12-13-14-15-16-17-19-21-24-27
Option 1
11-25 Sprocket Sizes 11-12-13-14-15-17-19-21-23-25 Titanium Sprockets
Option 2
11-28 Sprocket Sizes 11-12-13-14-115-17-19-21-24-28 Titanium Sprockets
Option 3
12-25 Sprocket Sizes 12-13-14-15-16-17-19-21-23-25 Titanium Sprockets
Option 4
12-27 Sprocket Sizes 12-13-14-15-16-17-19-21-24-27