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fc-moto.uk£16.47Visit shop Sidi Men's Black Hyper Extension Blocks Ankle Joint Protectors
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The Sidi Hyper Extension Blocks are essential replacement components designed specifically for off-road riders using Crossfire 3 and Crossfire 3 SRS boots. These blocks provide a critical safety function by limiting the range of motion in the ankle joint to prevent hyperextension during demanding rides. While these parts are vital for injury prevention, it is important to note that they are proprietary to specific Sidi models and require precise installation to function as intended.
| Colour | Black |
|---|---|
| Model Part Number | 52293-00-100 |
| Brand | Sidi Sport Srl |
No, these specific hyper extension blocks are designed exclusively for the Crossfire 3 and Crossfire 3 SRS boot models.
The kit includes a set of hyper extension blocks and all necessary fastening material for a complete installation.
You should replace them if you notice structural cracking, deep gouges, or if the mounting points become loose and can no longer be secured.
Yes, they are designed as user-replaceable spare parts. Ensure you use the correct tools to avoid stripping the fastener heads.
It is recommended to replace both sides simultaneously to ensure uniform protection and mechanical movement in both boots.
Ensure the bolts are properly seated and consider using a medium-strength thread-locking compound.
Immediately replace the worn blocks as they may no longer provide the intended hyperextension protection.
To install the hyper extension blocks, ensure your boots are clean and dry. Use the provided fasteners to secure the blocks into the designated mounting points on the rear of the boot chassis. It is recommended to apply a small amount of thread locker if performing frequent adjustments. Compatibility is strictly limited to the Sidi Crossfire 3 and Crossfire 3 SRS series. For care, wipe the blocks with a damp cloth after rides to remove abrasive mud or debris that might interfere with the movement of the hinge assembly.
