Shimano Dura-Ace BR9000 nut 10.5mm Rear axle.

Dura-Ace - Dual-Pivot - Brake Caliper - Slr-Ev - Rim Brake The Dura-Ace 9000 Series Brakes Deliver Superior Modulation And Power For Hard-Charging Road Cyclists. Available In Traditional And Direct Mount, They Are Compatible With 25mm Tires.Features:- Slr-Ev (Slr With Dual Symmetric Pivot Brake Caliper)- Superior Modulation And Power For BrakingSpe... morecifications:- Average Weight: 297 G/Pair- Remarks: Maximum Tire Size: 25 Mm Rim Width: 19-26 Mm /19-28 Mm (R55c4-A Carbon)- Brake Type: Slr Ev Dual Pivot- Reach (Mm): 49- Assembly Pivot Nut (Mm)_Front (Mm)_10.5: Yes- Assembly Pivot Nut (Mm)_Front (Mm)_12.5: Yes- Assembly Pivot Nut (Mm)_Front (Mm)_18.0: Yes- Assembly Pivot Nut (Mm)_Front (Mm)_27.0: Yes- Assembly Pivot Nut (Mm)_Front (Mm)_32.0: Yes- Assembly Pivot Nut (Mm)_Rear (Mm)_10.5: Yes- Shoe Angle Adjusting: Yes- Maximum Tire Size: 25c- Rim Width (Mm): 19-28 Mm- Titanium Cable Fixing Bolt: Yes- Titanium Pivot Bolt: YesTechnology:Slr-Ev:- Slr-Ev Is Slr With A Dual Symmetric Pivot Brake Caliper. The Short-Arm Brake Design Employs Two Bearings And A Roller To Realize Greater Efficiency In The Pivot Area And Deliver Superior Modulation And Power For Braking. Together With The Bc-9000 Brake Cable, The Latest Calipers Deliver 36% More Braking Power Than Shimano'S Previous Brake Model. Dual-Pivot Caliper:- The Dual-Pivot Design Realized A Lightweight, Compact And Durable Braking System. Dual-Pivot Caliper Brake Have Made Considerable Progress In Reduction Of Tolerance And Deflection As Well As In Durability. They Have Achieved Firm And Instantaneous Braking Response While Assuring Longer Service Life. Moreover, The Brake Pads Have An Improved Durability Of 100% To Help Enjoy High-Response Braking Over Longer Periods.