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Sidi T3.6 Speedplay Air Carbon Shoes - Men's

Sale $300.96 $349.95 14% off

Item # SID005C

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  • White/Silver, 39.0 ($300.96)
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Item # SID005C

Four-hole nirvana.

If you're a Speedplay loyalist, chances are that you're sick of getting the short end of the stick when it comes to compatibility. Manufacturer's unwillingness to design complementary interfaces is somewhat mysterious, but with the T3.6 Air Carbon Speedplay Shoes, Sidi created a system that doesn't need extra plates or adapters. Instead, you finally reap the full benefits of your preferred cleat system, effectively leaving the three-hole riders in your dust.

Obvious fact number one: rigidity is key. That's why Sidi incorporated its new Speedplay-approved SP Carbon Sole into the T3.6. The SP Carbon has been designed to attach directly to Speedplay cleats, so you'll never have to mess with a baseplate. Accordingly, the stack height has been reduced by around 4mm, and the weight has been slashed by nearly 62 grams. Even better, you gain an additional 6mm of fore/aft adjustment with the new design. The upshot is that you can run a lower saddle height, resulting in a reduced frontal area and a lower center of gravity for increased handling capabilities and a stellar aerodynamic advantage.

Sidi understands that triathletes play by another set of rules. Ratchets and ergo buckles can be too bulky and complicated for tri, so Sidi incorporated a two-strap closure system, mated with a 'burrito-wrap' upper. This allows you to really dial in the volume of the shoe, whether it be for training or on-the-fly during a race. The two-strap closure system is a breeze in T1. The large top strap opens away from the drivetrain for fast transitions when the shoes are already clipped-in. As for the bottom strap, you'll find largely leaving it alone during T1 once you've established your desired volume and fit. However, the gripper tabs placement on the strap simplifies any adjustments that you might need to make from the saddle. To really speed up T1, Sidi has also included a durable pull-tab at the heel.

Sidi's signature heel cup further improves fit by keeping your foot in the perfect position on hard up-strokes and while climbing out of the saddle. For comfort, the synthetic upper is outfitted with laser-cut perforations to increase breathability. The material is also extremely durable, so it doesn't succumb to the variable forces and bending that would normally wrinkle the shape of the uppers. Instead, the intended shape of the shoe remains unscathed over the years. Sidi also incorporates a brushed inner-lining with a minimal amount of internal seams, which makes for comfortable sockless riding and drains quickly to reduce weight and keep you comfortable.

  • Synthetic and mesh upper with laser perforations
  • Burrito-wrap overlapping upper design
  • Opposing hook-and-loop closures
  • SP Carbon sole
  • Adjustable cleat positioning
  • Ergonomic heel counter
  • Heel pull tab
  • Compatible with Speedplay cleats only

Tech Specs

Upper Material:
synthetic, mesh
hook and loop
SP Carbon
Cleat Compatibility:
Recommended Use:
Manufacturer Warranty:
1 year

Size chart

Fuji Bicycles


Geometry Chart


Altamira LTD

Seat Tube


Effective Top Tube








Head Tube


Head Tube Angle


Seat Tube Angle


Bottom Bracket Drop


Chainstay Length



44 44.0cm 51.5cm


36.3cm 72.1cm


72.0 deg 75.0 deg 6.9cm 40.5cm 97.1cm
47 47.0cm 53.0cm


37.0cm 74.1cm 13.0cm 72.5 deg 74.5 deg 6.9cm 40.5cm 97.7cm
50 50.0cm 54.5cm 54.0cm 37.0cm 76.0cm 14.0cm 73.0 deg 73.5 deg 6.9cm 40.5cm 97.6cm
53 53.0cm 56.0cm 56.0cm 37.9cm 78.3cm 16.0cm 73.5 deg 73.5 deg 6.9cm 40.5cm 98.6cm
55 55.0cm 57.5cm 58.0cm 38.9cm 80.1cm 18.0cm 73.5 deg 73.5 deg 6.9cm 40.5cm 100.1cm
58 58.0cm 59.0cm 60.1cm 39.7cm 82.1cm 20.0cm 74.0 deg 73.5 deg 6.9cm 40.5cm


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