Conquer Ironman – take on 226km with Hawaii hope Tim Don
The science of speed – which kit really makes you faster?
Elite Q&A with Swiss rocket Daniela Ryf
Four training apps on test
Train with Chrissie – we look at techniques for measuring training improvements
Wetsuit buying guide – all you ever needed to know about neoprene
Tri aerobars grouptest
PLUS win one of four 2XU compression kit bundles worth £230 each
Find 220 Triathlon on sale at newsagents across the UK, and the digital edition can be picked up via the iTunes store, Google Play and Zinio.