Shifters: Shimano 105 R7170, 12-speed. Front Derailleur: Shimano 105 R7150 Di2, braze-on, down swing. Rear Detailleur: Shimano 105 R7150 Di2, 36T max cog. Brakes: Shimano 105 R7170, direct mount, 140/160mm with adaptor (included).
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