Lightweight Aluminium Disc Brake Caliper Adapter | Specialized Tarmac

CNC-machined on high-strength 7075 Aluminium with a hollowed-out design to provide the same functionality as stock adapters while being 45% lighter.

Price listed is per unit. Please purchase 1 front and 1 rear unit if you want to change both front and rear adapters.

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Compatibility

Suitable for Specialized Tarmac SL8 and Aethos 1 only. (Aethos 2 2026 not compatible, click here for 70mm version)

Due to Specialized's design, only 160mm rotors are compatible with the front caliper.

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Specifications

Weights
Front: 7.2g (Stock: 13.3g)
Rear: 6.4g (Stock: 16.3g)

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What's in the box?

- Disc brake adapter
- 2 proprietary Titanium caliper fixing screw (Silver Colour)

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Disclaimer

- Design subject to updates and upgrades without prior notification
- Bicycle, brake rotors, and brake calipers in pictures are not included
- This product has a general tolerance of <0.05mm, with critical areas being 0.01mm. Some forks have an uneven adapter contact point which tilts the caliper. You will require a professional mechanic to resurface the contact point. Most issues encountered during installation are due to the fork tolerance.