The Clean Fi’zi:k Aesthetic, Lighter Than Ever
The Overcurve R4’s classic aesthetic belies an advanced construction technique: a resilient polyurethane laminated material is combined over a comfortable mesh, reducing energy loss and providing long-lasting foot support where it’s most needed.
Overcurve
Shoe closure is fast, reliable, and secure, powered by a micro-adjustable BOA® IP1 dial in an Overcurve pattern.
The Overcurve shoe construction features a staggered collar that wraps around the ankle, tracing the natural alignment of the ankle’s two bony protrusions: the lateral and medial malleoli. The result is an asymmetrical shape, with the throat of the shoe curving over the foot from its outside to its inner side.
R4 Outsole
The moderately stiff R4 outsole strikes a balance between comfort and pedaling efficiency to make it a true all-rounder, featuring a lower profile structurally optimized with a 15% infused carbon fiber composition.
The R4 outsole further provides efficient ventilation with internal channeling for effective temperature regulation. The cleat is positioned slightly further towards the heel compared to traditional placement to optimize pedaling efficiency and reduce knee compression, especially suited to aggressively forward aero riding positions.
Features
- Outsole: R4 outsole – carbon injected nylon, stiffness index 7
- Overcurve: asymmetrical construction that ergonomically conforms to the foot’s anatomy
- PU laminated mesh upper: enhanced ventilation with support where needed
- Weight: 230g (size 42 – 1/2 pair)
Free Exchanges: This product qualifies for free exchanges within the first 60 days after order. We’ll cover the shipping both ways for US customers 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.
The product weight specified is an approximate weight based on the manufacturer’s specifications (if available) or our measurement of one or two examples. For most products, the weight will typically vary by 5% to 10%.
Size Chart
| 42 | 42.5 | 43 | 43.5 | 44 | 44.5 | 45 | 46 | |
| Shoe Size (US Men) | 9 | 9.5 | 9.75 | 10.25 | 10.75 | 11 | 11.5 | 12.25 |
Specifications
| Weight:Â 460g (pair)Â | |
| Width: Regular | |
| Cleat Compatibility:Â 3 Hole (Road)Â | |
| Black / Black – 42 | Mfg PartNum:Â F2211420Â |
| Black / Black – 42.5 | Mfg PartNum:Â F2212425Â |
| Black / Black – 43 | Mfg PartNum:Â F2213430Â |
| Black / Black – 43.5 | Mfg PartNum:Â F2214435Â |
| Black / Black – 44 | Mfg PartNum:Â F2215440Â |
| Black / Black – 44.5 | Mfg PartNum:Â F2216445Â |
| Black / Black – 45 | Mfg PartNum:Â F2217450Â |
| Black / Black – 45.5 | Mfg PartNum:Â F2218455Â |
| Black / Black – 46 | Mfg PartNum:Â F2219460Â |
| Black / Black – 46.5 | Mfg PartNum:Â F2220465Â |
| Black / Black – 47 | Mfg PartNum:Â F2221470Â |
| White / Black – 42 | Mfg PartNum:Â F2234420Â |
| White / Black – 42.5 | Mfg PartNum:Â F2235425Â |
| White / Black – 43 | Mfg PartNum:Â F2236430Â |
| White / Black – 43.5 | Mfg PartNum:Â F2237435Â |
| White / Black – 44 | Mfg PartNum:Â F2238440Â |
| White / Black – 44.5 | Mfg PartNum:Â F2239445Â |
| White / Black – 45 | Mfg PartNum:Â F2240450Â |
| White / Black – 45.5 | Mfg PartNum:Â F2241455Â |
| White / Black – 46 | Mfg PartNum:Â F2242460Â |
| White / Black – 46.5 | Mfg PartNum:Â F2243465Â |
| White / Black – 47 | Mfg PartNum:Â F2244470Â |























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