The Sidi SD15 Shoes are great for hiking off the bike with their flexible sole and aggressive tread pattern, but were they stiff enough to be efficient in pedaling power transfer?
In the first look article and video, Neil briefly went over the design features and functions of the SD15. Let’s look a little closer at how these shoes were designed before talking about how they performed.
The Sidi SD15 shoes have some great design features that marry the classic Sidi cycling shoe with features that cyclists who spend a good amount of time off the bike have been looking for, whether that’s while at camp or during hike-a-bike sections. One of these features is the “Tallone Heel” cup system which Sidi implements on their cycling shoes to combat heel slippage.
The “Suola Outdoor” sole on these shoes is flexible with an aggressive tread pattern using softer durometer rubber than most shoes I’ve seen. This provides great grip on hard and loose trails, as well as both dry and wet surfaces.
The closure/tightening mechanism on the SD15 is Sidi’s own TECNO-3 system that uses a dial to twist a micro ratchet that tightens cords that crisscross the tongue on the shoe.
These cords tighten the upper, made of a Politex material. Sidi describes it as “…constructed of several overlapping layers with different physical-mechanical properties, the compacted PVC is then coupled to two fabrics (knitted fabric + felt) that is then film dyed for long-lasting color retention. “Politex” offers strong resistance to ripping, laceration, stretching and fading. “Politex” is made in strict compliance with European regulations and is a totally “green” product.”