The stability and outright grip from the Stealth rubber pedal zone is outstanding
Adidas now has its own flat pedal shoe using a high-friction Stealth rubber sole. Five Ten famously invented the Stealth formula, but the German sports giant acquired Five Ten a few years ago, granting direct access to the key ingredient no other manufacturer has seemed able to replicate.
Compared directly to my shoe of choice, the (similar) Five Ten Impact VXi, the Terrex Trail has a narrower, less boxy interior and more ventilation. Its Stealth sole is divided into three segments, with ridged toe and heel areas to provide more walking traction, and a triangle-patterned mid zone for maximum pedal-pin grip.
Like the Impact, there’s a reinforced toebox and extra ‘bumper’ rubber wrapping at both ends.
The sole is more supple, but the Adidas shoe feels almost identical in terms of cushioning and protection when smashing through rocks, since the Stealth layer is thicker. And crucially, my feet felt just as locked-on as with the Five Tens.
More rubber underneath should offer extra durability, and the chunkier tread pattern is great for hiking back up steep tracks. This extra base material does add more weight to turn over while pedalling though.
The perforated upper isn’t as rigid and supportive as some cycling-specific shoes, but they breathe well. Overall, Adidas has totally excelled itself with the Terrex. £95 is a competitive price considering the quality, comfort (on and off the bike) and pedal feel, and the stability and outright grip from the Stealth rubber pedal zone is outstanding.