SIDI · Boot Parts
The SIDI Rex Mid Tensioner is a Tecno-3 mid tensioner replacement part made to bring back proper fit and closure function on SIDI Rex boots.
Built specifically for SIDI Rex and Rex Air, this component is intended to help restore the boot’s secure, precise closure at the mid section. With multiple size options offered, it’s an easy way to replace a worn or damaged mid tensioner and keep the Tecno-3 system working as intended.
This replacement mid tensioner is listed as compatible with SIDI Rex and Rex Air boots. It’s made to match the mid-boot tensioner location so the closure system can be returned to proper operation without changing to a different boot model.
The Rex Mid Tensioner is built around SIDI’s Tecno-3 system to support a secure closure. Replacing the mid tensioner helps restore the precise adjustment the Tecno-3 setup is designed to provide on Rex and Rex Air boots.
Designed to be simple to replace, this mid tensioner is meant to maintain the boot’s fit and function over time. It’s offered in multiple sizes to help riders choose the correct replacement and get their Rex boots back in working order.
| SIDI Reference | 311 |
|---|
| SIDI Rex |
| SIDI Rex Air |
Fitment as listed by SIDI for this part.
| Compatible with SIDI Rex and Rex Air boots. |
| Utilizes the Tecno-3 system for secure closure. |
| Simple to replace, maintaining performance and fit. |
As listed by SIDI for this boot part.
