Metaspeed Edge Tokyo vs SuperComp Elite 6

The Metaspeed Edge Tokyo is ASICS at its sharpest: a 159g carbon racing shoe built to chase a personal best on the road and not much else. It is the Edge, so it is tuned for cadence runners, the people who get faster by turning their legs over quicker rather than by reaching for a longer stride. If that is you, the geometry here works with you instead of fighting you. At 38.9mm in the heel and a 6.9mm drop it sits right at the front of the modern marathon shoe pack, and the carbon plate gives you a firm, snappy platform that wants to roll forward. This is a race-day tool, not a do-everything trainer. Step on at easy pace and it feels stiff and a touch unforgiving. Hold goal pace and it comes alive. If you lengthen your stride to find speed, look at the stride-biased Metaspeed Sky Paris instead. At £230 it is a serious outlay, so be honest about whether you will use it.

New Balance swapped almost everything under the foot for this version, and reviewers noticed. The SC Elite v6 gets a new foam, a reworked carbon plate and a big cut in weight, and most testers called it a clear step up from the SuperComp Elite v5, which one reviewer had found closer to a trainer than a race shoe. It's now a proper carbon racer, light and springy, with a front end that won't bend. Where it works best is less settled. Doctors of Running's two testers graded it A and A-, and one would race it anywhere from 5K to the marathon. RTINGS was cooler on the long stuff, finding the forefoot cushioning only just enough for a full marathon and rating it higher for shorter races. So if you're quick and land on your midfoot, it's a strong marathon shoe. If you land on your heel and want protection in the last few miles, a softer racer will look after your legs better. At £230 RRP it sits with the most expensive racers, so check the price table before you buy.