Its a unique micro-adjusting rotor provides a uniform, customized fit for enhanced support and stability. The ergonomic dial with soft rubber edge guarantees greater grip in any ride condition. Its dial diameter is 30mm provides better handling in racing situation. The Micro Twist is markable lower in profile, only 10mm thickness for a more aerodynamic profile. Woven laces are very flexible yet ultra-resistant.Weight: 270 gr in size 42Suitable with 3-bolt systemMicro Twist DialThe ergonomic dial with soft rubber edge guarantees greater grip in any ride condition. Its dial diameter is 30mm provides better handling in racing situation. The Micro Twist is markable lower in profile, only 10mm thickness for a more aerodynamic profile. Woven laces are very flexible yet ultra-resistant.TWS 2.0TWS 2.0 system acts primarily across the independent tensors on a larger area of the shoes upper, pulling the eyelets inwards consistently from all directions for a more supportive and comfortable fit.