WHITE OVER XR4. Main components: SHIMANO ULTEGRA. Shifter: SHIMANO ULTEGRA ST-R8020. Front derailleur: SHIMANO ULTEGRA FD-R8000. Rear derailleur: SHIMANO ULTEGRA RD-R8000. Crank: SHIMANO ULTEGRA FC-R8000 170mm / 52-36T.
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