# SIDI Aertis Mountain Clipless Shoes - Men's Black/Black 43.5

Whatever the journey Aertis is there to make it easier and better. The comfort of a premium suede construction meets the Firmor technology that offers great lateral support. The nylon sole with replaceable rubber insert allows for maximum grip in any situation and increased walking comfort.-   Designed for maximum lateral support the Firmor Closure contours the foot with a solid hold and allows infinite size adjustment for the ideal individual fit
-   SIDI’s Tecno-3 System dials in fit along the entire length of the shoe adapting the upper to the shape of the foot for a customized fit
-   The closure uses a new proprietary SIDI Wire monofilament that is completely non-binding for intuitive and effortless on-the-fly adjustments
-   Like most SIDI small parts the Tecno-3 System is serviceable and replaceable
-   The SIDI MTB SR17 sole represents the ultimate result in terms of stiffness for pedaling and flexibility for walking
-   The toe inserts are easily replaceable and offer the possibility to mount spikes for particularly muddy rides
    
    Cleat Bolt Pattern
    
    2-Bolt
    
    Closure
    
    Dial
    
    Shoe Size (EU)
    
    43.5
    
    Gender/Age
    
    Men's
    
    Color
    
    Black
    
    Defined Color
    
    Black
    
    Activity
    
    Cycling
    
    Shoe Size
    
    43.5

## Details

- **Price:** 239.99 USD
- **Vendor:** Gio's Outdoors
- **Type:** Shoes and Insoles
- **Tags:** Gio's Outdoors, Shopify Collective

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 239.99 USD | In stock |

## Images

- SIDI Aertis Mountain Clipless Shoes - Men's Black/Black 43.5

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> Source: [Smart supply deals](https://smartsupplydeals.com/products/sidi-aertis-mountain-clipless-shoes-mens-black-black-43-6)
> Updated: 2026-07-22