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Description
Air. Power. Control.
The Sidi Wire 3 is built for riders who demand the freshest, most powerful riding experience possible. The new Micro Matrix® and Kevlar® upper features zoned densities for maximum airflow and targeted support. A full carbon sole (stiffness 11) delivers efficient power transfer, while Firmor X internal reinforcement enhances stability and foot alignment. Lightweight and highly breathable, Wire 3 is engineered for total control under maximum effort.
Designed for Every Foot
Millennium Fit is Sidi's latest innovation in cycling shoes. The new generation of Sidi shoes are designed with a slightly wider shape, offering enhanced comfort and better adaptability for more riders.
Features:
- Where stability meets airness: Micro Matrix®-Kevlar® upper and Firmor X reinforcement ensure lightweight ventilation, foot control, and race-ready stability throughout.
- Vented but tough: Micro Matrix® uses open-cell threading and Kevlar® zones to provide airflow, durability, and lightweight, breathable support.
- Wrapped to perform: Firmor X wraps the foot, connecting sole, dials, and instep for a secure, unified, locked-in fit.
- Aero tuned dials: NUUN 001C is a compact, aero aluminum dial with SIDI's handle system for fast, precise tension and maximum hold.
- Power machine: R2FC carbon sole with stiffness 11 and Nexus Bridge ensures power transfer, structural balance, and integrated stability.
Specs:
- Upper: Micro Matrix® & Kevlar® – lightweight, breathable, and durable with zoned support
- Closure: Dual NUUN 001C aluminum dials – precise fit with aero design
- Fit system: Firmor X wrap + floating instep – secure, unified lockdown and arch support
- Heel: Tool-free adjustable counter – customizable and removable for tailored fit
- Footbed: Integrated heel design – full foot stability under power
- Lasting board: Internal nylon – optimized for energy transfer and structure
- Outsole: R2FC full carbon with Nexus Bridge – stiffness index 11
- Cleat setup: Independent cleat positioning for custom alignment
- Replaceable parts: Heel pads and dials
Free Exchanges: This product qualifies for free exchanges within the first 60 days after order. We'll cover the shipping both ways for continental US customers (not applicable for AK, HI, APO, FPO) if you need a different size and/or color of this product. Returned product must be in new condition with all labels and packaging. Free exchanges apply only for product in stock or available for backorder.
B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. Cleats may have been mounted leaving minor marks on the soles. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.
Size Chart

Specifications
White - 42 | Mfg PartNum: 000MCWIRE3WHITE-42 |
White - 42.5 | Mfg PartNum: 000MCWIRE3WHITE-42.5 |
White - 43 | Mfg PartNum: 000MCWIRE3WHITE-43 |
White - 43.5 | Mfg PartNum: 000MCWIRE3WHITE-43.5 |
White - 44 | Mfg PartNum: 000MCWIRE3WHITE-44 |
White - 44.5 | Mfg PartNum: 000MCWIRE3WHITE-44.5 |
White - 45 | Mfg PartNum: 000MCWIRE3WHITE-45 |
White - 45.5 | Mfg PartNum: 000MCWIRE3WHITE-45.5 |
White - 46 | Mfg PartNum: 000MCWIRE3WHITE-46 |
White - 46.5 | Mfg PartNum: 000MCWIRE3WHITE-46.5 |
White - 47 | Mfg PartNum: 000MCWIRE3WHITE-47 |
Black - 42 | Mfg PartNum: 000MCWIRE3BLACK-42 |
Black - 43 | Mfg PartNum: 000MCWIRE3BLACK-43 |
Black - 44 | Mfg PartNum: 000MCWIRE3BLACK-44 |
Black - 45 | Mfg PartNum: 000MCWIRE3BLACK-45 |
Black - 46 | Mfg PartNum: 000MCWIRE3BLACK-46 |
Black - 47 | Mfg PartNum: 000MCWIRE3BLACK-47 |
Sand Fluo Coral - 42 | Mfg PartNum: 000MCWIRE3SNDCRFL-42 |
Sand Fluo Coral - 43 | Mfg PartNum: 000MCWIRE3SNDCRFL-43 |
Sand Fluo Coral - 44 | Mfg PartNum: 000MCWIRE3SNDCRFL-44 |
Sand Fluo Coral - 45 | Mfg PartNum: 000MCWIRE3SNDCRFL-45 |
Sand Fluo Coral - 46 | Mfg PartNum: 000MCWIRE3SNDCRFL-46 |
Sand Fluo Coral - 47 | Mfg PartNum: 000MCWIRE3SNDCRFL-47 |
White Fluo Yellow - 42 | Mfg PartNum: 000MCWIREWHTYELFL-42 |
White Fluo Yellow - 43 | Mfg PartNum: 000MCWIREWHTYELFL-43 |
White Fluo Yellow - 44 | Mfg PartNum: 000MCWIREWHTYELFL-44 |
White Fluo Yellow - 45 | Mfg PartNum: 000MCWIREWHTYELFL-45 |
White Fluo Yellow - 46 | Mfg PartNum: 000MCWIREWHTYELFL-46 |
White Fluo Yellow - 47 | Mfg PartNum: 000MCWIREWHTYELFL-47 |
Mechanic's Corner
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