MIDSOLE
TECHNOLOGY
Designing a midsole that also connects to the leather upper helps keep riders’ feet closer to the sole.
This minimizes stack height, improves fit, and keeps the foot securely in place while pedaling.
It also reduces power loss and prevents fault-induced failure.
SEAMLESS MIDSOLE STRUCTURE
Conventional Structure Seamless Midsole Structure Lasting board Lower stack
height Insole
LOWER STACK HEIGHT STABILIZES PEDALING STROKES AND MAXIMIZES EFFICIENCY.
ROAD
SHIMANO engineers and researchers discovered that reducing stack height, the distance between the sole and pedal axis, stabilized pedaling strokes and increased power transmission efficiency, especially when applying high levels of downward force on the pedals.
We transferred S-PHYRE RC9’s seamless midsole structure into our RC5 and RC3 Road shoes as well as our TR5 Triathlon shoe to share the performance benefits of a lower stack height with a wider range of road riders.
Midsole Structure
1.ADJUST
TIGHTNESS 2.MIDSOLE LIFTS 2. 3.FOOT MAINTAINS CLOSE
CONTACT WITH MIDSOLE
Stack height
| Shoes | Sole thickness(mm) |
Midsole Structure | |
|---|---|---|---|
| Sole bottom to Upper inside |
|||
| SPD-SL | RC902 | 4.9 | 360° |
| RC901T | 4.7 | X | |
| RC701 | 8.8 | ||
| RC500 | 6.5 | X | |
| RC300 | 6.5 | X | |
| RC100 | 10.0 | ||
| RP400 | 10.0 | ||
| RP301 | 10.0 | ||
| RP100 | 8.8 | ||
| TR901 | 6.6 | ||
| TR501 | 6.5 | X | |
| TR500 | 8.3 | ||
MTB
MTB shoes with a lower stack height also benefit from improved pedaling efficiency and bike control.
We integrated our Road shoes seamless midsole structures into a selection of our XC MTB shoes to provide more stable and efficient pedaling to riders of all levels.
Midsole Structure
Stack height
| Shoes | Sole thickness(mm) |
Midsole Structure | |
|---|---|---|---|
| Sole bottom to Upper inside |
|||
| SPD Midsole |
XC901 | 5.9 | X |
| XC701 | 5.9 | X | |
| XC501 | 5.9 | X | |
| XC300 | 5.9 | X | |
| XC100 | 5.9 | X | |