Sidi Tecno-4 Calf Tensioner — placeholder, product photo coming soon
02 · Data & docs

The facts.

Technical data
BrandSidi
PartTecno-4 calf tensioner
Sidi part no.52264
Sidi position no.83
FitsSidi boots with Tecno-4 closure (see Sidi spare-parts chart)
SizesOne size
Material100% Hard plastic
DescriptionThe whole story▼

Sidi's Tecno-4 closure tightens the upper with a dial, and the calf tensioner is the hard-plastic unit that applies that pull around the top of the boot. This listing is the original replacement, position 83 on the Sidi chart, for a tensioner that has broken or no longer holds its setting.

Key Features

  • Original Sidi part for the Tecno-4 closure
  • Tensions the upper around the calf
  • Sidi position no. 83
  • Hard plastic
  • One version, no size choice

How It Works

A calf tensioner takes up slack at the upper shaft so the boot stays snug against the leg. If it slips, the top of the boot gapes open, lets in wind and rain and allows the boot to move in a crash. Replacing it restores the closing force the system was designed for.

Which Boots

The article name identifies the part by its closure system rather than by a boot model. Check the Sidi spare-parts chart for your boot to confirm that it uses Tecno-4 and that position 83 matches before ordering.

What You Should Know

  • Sidi names no specific boot, only the Tecno-4 system
  • Compare with your old part and the Sidi chart
  • Black hard plastic per the Sidi list
  • Dealer fitting is the safe option

Specifications

Brand Sidi
Part Tecno-4 calf tensioner
Sidi part no. 52264
Sidi position no. 83
Fits Sidi boots with Tecno-4 closure (see Sidi spare-parts chart)
Sizes One size
Material 100% Hard plastic
07 · Support

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