Shimano RC5 (RC503) Road Cycling Shoes: BOA L6C Dial (£135)
The Shimano RC5 (RC503) is a road shoe with a BOA dial closure and a carbon-fibre-reinforced nylon midsole. We have not tested it. This page collects what Tredz lists and the current price.
Available now: Shimano RC5 (RC503) Road Cycling Shoes — £139.99 at Tredz (listed RRP £159.99), correct at time of writing, 21 October 2026.
What the retailer lists
- Closure: a BOA Fit System with an L6C dial and a Shimano-engineered lace profile.
- Sole: a carbon-fibre-reinforced nylon midsole for power transfer.
- Construction: an integrated seamless midsole and upper, and a surround-wrapping upper structure that reduces overlap.
- Upper: perforated synthetic leather with a new closure profile.
- Stack: a low-stack-height midsole.
- Materials: 23% recycled material by weight in the toe box and midsole.
Where it fits for triathletes
The points below are our reading of the listed features, not test results.
- Transitions. A single dial is quick to loosen and tighten, which helps when you are changing shoes in T2.
- Pedal system. Check the cleat pattern before buying; this page does not state which cleats the sole takes.
- Price. At £134.99 it is £25.00 below the RRP.
- Price. At £134.99 it is £25.00 below the RRP.
Where to buy
Tredz lists the Shimano RC5 (RC503) Road Cycling Shoes at £134.99 at time of writing, and the link below goes to the same product page.
Related guides
See also our best triathlon bike shoes guide and the Shimano RC7 (RC703) page.
This article contains affiliate links. If you purchase through these links, we may earn a small commission at no extra cost to you. This helps support The Triathlete.
