Overview Reviews Product Description New Old StockShimano Ultegra 6400 crankset172.5mm Crankset42-53 Chainringscomes with dust caps Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × Shimano Ultegra Crankset 6400 172.5mm 42-53 600 NOS Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments