SIDI Genius X

SIDI 2026 Collection
Note: If your size/color is not showing available to purchase please contact La Bicicletta Toronto for updated information/assistance.

The SIDI Genius X is an icon reimagined, Genius X Microfiber balances comfort and control for endurance comfort and any type of rider. Its high-grade microfiber upper is supple against the foot but structurally firm, delivering a secure, skin-friendly fit that holds under pressure. Dual NUUN dials and a High-Density Instep ensure precise adjustment, while the R3CC carbon composite sole and External Heel provide stable, efficient power transfer on every ride.
SIDI Performance index 6/10
SIDI Stiffness index 6/12
SIDI Millennium Fit.

TECHNOLOGY
//Upper: Premium microfiber – supple feel with structured support for all-day comfort
//Closure: Dual NUUN 001C aluminum dials – aerodynamic, precise, and secure
//Instep: Anatomical TPU High-Density Instep – reduces pressure and enhances stability
//Fit System: External heel and reinforced design – maintains hold under pressure
//Outsole: R3CC carbon composite – stiffness index 6 for smooth power transfer and comfort
//Cleat Setup: Independent cleat positioning for tailored alignment
//Replaceable Parts: Heel pads and dials

SIDI Millennium Fit: This new design features a slightly more spacious toebox shape, offering enhanced comfort and better adaptability to the foot.

SIDI Millennium Fit size guideline 2026:
Euro 37 | 23.2cm | US/CAN 5
Euro 37.5 | 23.5cm | US/CAN 5.5
Euro 38 | 23.8cm | US/CAN 6  
Euro 38.5 | 24.2cm | US/CAN 6.5  
Euro 39 | 24.5cm | US/CAN 6.5 
Euro 39.5 | 24.8cm | US/CAN 7  
Euro 40 | 25.2cm | US/CAN 7.5  
Euro 40.5 | 25.5cm | US/CAN 8  
Euro 41 | 25.8cm | US/CAN 8  
Euro 41.5 | 26.2cm | US/CAN 8.5  
Euro 42 | 26.5cm | US/CAN 9  
Euro 42.5 | 26.8cm | US/CAN 9.5  
Euro 43 | 27.2cm | US/CAN 10  
Euro 43.5 | 27.5cm | US/CAN 10.5  
Euro 44 | 27.8cm | US/CAN 10.5  
Euro 44.5 | 28.2cm | US/CAN 11  
Euro 45 | 28.5cm | US/CAN 11.5  
Euro 45.5 | 28.8cm | US/CAN 12  
Euro 46 | 29.2cm | US/CAN 12  
Euro 46.5 | 29.5cm | US/CAN 12.5  
Euro 47 | 29.8cm | US/CAN 13  
Euro 48 | 30.5cm | US/CAN 13.5  

SIDI size measurement procedure.
Measure your foot by following these steps to obtain the reference measurement.
1. Put a piece of paper on the floor and mark the following points.
2. Mark the point in front of the tip of your longest toe and then mark the heel point for both left and right
3. Measure the distance between the heel mark and the toe mark. Record the cm/mm measurement and compare to the size guide chart for the suggested size. Use the size of the larger foot, most people will have slight difference between the left and right foot.