Overview Reviews Product Description New Old Stock Shimano 600 Ax Aero Stem25.4 Clamp22.290mmThe Aero Stem With The Hidden Clamp Bolt Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × Shimano 600 stem AX hidden bolt 25.4 90mm 22.2 NOS Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments