THM Fibula Carbon Road Brake

The THM Fibula is an ultra-light carbon rim brake engineered for modern wheel standards and peak rider performance. This latest generation uses resin transfer molding (RTM) to achieve tighter tolerances, improved strength-to-weight, and reduced environmental impact . Weighing in at just 120 g for the front and rear combined (61 g front, 59 g rear), it delivers elite-level stopping power at roughly half the mass of competing systems

Both arms and the return spring are full-carbon, with high-tensile titanium adjusters and hardware. An adjustable cam pivot allows flawless setup across rim widths from 19–30 mm and accommodates tires up to 25 mm without re-clamping. The pull ratio (1:1.5) is precisely calibrated for compatibility with Shimano, SRAM, and Campagnolo levers.

Renowned for its exceptional linear mechanical response—with superior uniformity and modulation—and tested performance comparable to high-end rivals like Dura-Ace, SRAM Red, and Campagnolo Super Record , the Fibula remains the ultralight brake of choice for riders under 110 kg total system weight.

Features:

Resin Transfer Molded Carbon

Full Carbon Construction

Consistent Modulation

Broad Rim Compatibility

Specs: