Trek Domane SL5 56 cm Shimano 105 Groupset Posted December 23, 2023 Trek Domane SL5 56 cm Shimano 105 GroupsetBrake type: Hydraulic Disc Shimano 105. Handlebar: Drop 42 cm. Stem length: 11 cm. Crank Length: 172.5 mm. Chainset config: Double 50-34 T.