Fizik Tempo R4 Overcurve White/Black

Foot length (mm)	US	EU	UK
230	4 ¾	36	3 ¾
237	5 ¼	37	4 ¼
240	5 ½	37.5	4 ½
243.5	6	38	5
247	6 ¼	38.5	5 ¼
250	6 ¾	39	5 ¾
253.5	7	39.5	6
257	7 ½	40	6 ½
260	8	40.5	7
263.5	8 ½	41	7 ½
267	8 ¾	41.5	7 ¾
270	9	42	8
273.5	9 ½	42.5	8 ½
277	9 ¾	43	8 ¾
280	10	43.5	9
283.5	10 ¾	44	9 ¾
287	11	44.5	10
290	11 ½	45	10 ½
293.5	11 ¾	45.5	10 ¾
297	12	46	11
300	12 ½	46.5	11 ½
303.5	13	47	12
310	13 ¾	48	12 ¾

A performance cycling shoe with a polyurethane-laminated mesh upper that enhances ventilation, ergonomic construction that conforms to the foot’s anatomy, and an R4 carbon-injected nylon outsole.

Behind the Overcurve R4’s lies 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 pedalling 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 channelling for effective temperature regulation. The cleat is positioned slightly further towards the heel compared to traditional placement to optimize pedalling efficiency and reduce knee compression, especially suited to aggressively forward aero riding positions.

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)