Bianchi Oltre Shimano 105 Di2 Disc Road Bike 2023, Size 53cm Posted December 9, 2023 Bianchi Oltre Shimano 105 Di2 Disc Road Bike 2023, Size 53cmCranksetShimano 105, 50/34t – 172.5mm. Size GuideSmall (5’2 – 5’7). View our in-depth size guide.