Bicycle wheel disc brake central locking Shimano Deore XT WH-M8120

・Fiability in high-speed turns "15 mm front through axle +15% torsional stiffness 25% higher transverse shear stiffness (compared to 9 mm quick release) ・Easy installation and reliable track performance ・28 J spokes (2.0-1.8-2.0 double reinforced) ・Outer rim width: 34.7 mm