A triathlon cycling shoes with a intuitive and faster velcro closure system Powerstrap, mesh and Microtex upper for a superior ventilation and a R4 carbon outsole for efficient power transfer in comfort.

Transiro PowerStrap R4 is a triathlon shoe with an extremely quick and intuitive to use, enveloping Velcro closure, ideal for shorter-distance races. For sprint or short distance triathlon formats, where every second shaved off in transition matters, we wanted to deliver a shoe that could offer the fastest and most intuitive closure system possible.

PowerStrap

Powerstrap is extremely quick to fasten: simply slide into the shoe, pull and roll out from the transition smoothly. The strap is designed to pull an extended area of the shoe’s upper, so the fit is enveloping and secure, even with a relatively simple system.

To ease transition, the Powerstrap can be locked in the wide open position ready for quick and easy foot entry, while the heel is equipped with a rubberized loop to facilitate setting the shoes ready clipped into the pedals, and easily and quickly pulling your feet into them.

The shoe’s upper construction combines mesh – for superior ventilation – with Microtex, to ensure appropriate foot support in every pedal stroke.

R4 Outsole

The upper is complemented by a moderately stiff R4 outsole, delivering a striking balance between comfort and pedalling efficiency while still providing efficient ventilation for temperature control.

Features

Mesh and Microtex upper - enhanced ventilation with the needed support
R4 carbon injected nylon outsole - moderately stiff for efficient power transfer in comfort
Powerstrap - intuitive, quick and secure closure
R4 outsole – carbon injected nylon

Specifications

Weight 237g (size 42 - 1/2 pair)
Sizes  36-48 (37 to 47 also in half sizes)


Size Guide

Length (mm) US EU UK
230 36
237 37
240 37.5
243.5 6 38 5
247 38.5
250 39
253.5 7 39.5 6
257 40
260 8 40.5 7
263.5 41
267 41.5
270 9 42 8
273.5 42.5
277 43
280 10¼ 43.5
283.5 10¾ 44
287 11 44.5 10
290 11½ 45 10½
293.5 11¾ 45.5 10¾
297 12¼ 46 11¼
300 12½ 46.5 11½
303.5 13 47 12
310 13¾ 48 12¾

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