Swiss brand Ere Research’s Tenaci tyres are intended for gravel and dirt roads.
It has a 120 TPI tubeless-ready casing, aramid folding bead and an Armis 2 puncture protection layer from edge to edge.
The tread comprises 65a durometer rubber, the sidewall graphics are reflective, and it’s also available in 700c x 30mm, 32mm and 40mm widths and 36mm. They weigh 415g each (36mm).
The Tenacis were a very tight fit on some Mavic Allroad Pro wheels, needing considerable effort to wrangle them in to place. The benefit is that they inflated and seated almost instantly, with a high volume track pump.
Mavic’s UST rims kept them seated with no air loss while sealant was introduced. When inflated, they measured 35mm wide.
Using part of the word ‘tenacious’ to name these tyres perfectly describes their grip level in dry conditions.
The central flatter section’s 12mm wide aggressive file tread is quick on tarmac and, flanked by recessed grip, arranged in five ridges on the shoulders, gives great directional stability on loose surfaces. But their volume makes them less suited to rough terrain and their tread can’t cope with wet mud.