The Pistard Air is ideal for a high-end Track or Single Speed bike. It\'s been designed with the same precision and care that Miche is famous for. Featuring an integrated oversized 24mm hollow axle for ultra-stiffness. The Aero spider design not only offers aerodynamic benefits, it also adds to the overall stiffness of the chainset. Features: Weight: 725g W/O BB Material: AL 6082 T6 Forged BCD: 144mm Chainring material: AL 7075 T6 Total Treatment Anodised BB Compatibility: Evo Max 68x42, Evo Max 68x46, Evo Max 86.5x41, Evo Max 86.5x46