T1 Loop Brompton Sp
ROUND SEATPOST SERIES

T1 Loop Brompton Sp

BROMPTON // CARBON FIBER

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Weight (350mm)
ISO 4210
Certified

More than a seatpost. Engineering.

Looking for a seatpost for your bike? You've found the ultimate solution. We're changing the paradigm of bicycle components: we don't just remove grams, we optimize physics. With an asymmetric layup studied layer by layer, we drastically reduce the pendulum effect when pedaling out of the saddle.

Asymmetric Layup

Bidirectional and unidirectional fabrics strategically oriented through finite element analysis.

Dyneema® System

Head with Dyneema® rings. Ultra-light, resistant anchoring compatible with 7x9mm carbon rails.

ISO 4210 Safety

Exceeds regulatory tests. 90kg limit (reinforced version available for cyclists >90kg).

CONFIGURATION

How to use the configurator

Enter the exposed seatpost length (measured from the frame to the center of the saddle rails). The configurator automatically selects the minimum compatible length, prioritizing lightness and safety.

The table below shows the recommended ranges. Finish and reinforcement are configured independently based on use and rider.

Exposed length
Seatpost Length Min Max
250 mm 100 mm 175 mm
300 mm 145 mm 220 mm
350 mm 190 mm 265 mm
400 mm 235 mm 310 mm
* Finish must be selected manually.
* Reinforced automatically recommended from 90 kg.

Size Calculator

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* Measured from the frame to the center of the rails.
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Critical Engineering Warning

DO NOT CUT. The internal reinforcement structure is calculated for the specific length. Modifying the length alters the position of reinforcements and compromises structural integrity. Request the exact measurement.

TECHNICAL SPECIFICATIONS

TUBE MATERIAL UD/Bidirectional Carbon Fiber
HARDWARE MATERIAL Titanium Gr5 M5 / Aluminum 7075 T6
CLAMPING SYSTEM Dyneema® Rings
WEIGHT LIMIT 90kg (Reinforced option +20g available)

INSTALLATION