S-PARTS Titanium 3D Printed Flat Mount Front & Rear Brake Adapter Bundle
Optimised for Shimano Di2 Road Disc Brakes
The zenith of marginal gains in braking system hardware. Purpose-built to interface perfectly with your Shimano 12-speed Di2 front and rear callipers, this bundled adapter set combines advanced aerospace additive manufacturing with CNC post-machining to create a featherlight, incredibly stiff structure that shaves every non-essential gram from both ends of your bike.
Technical Specifications
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Material: Aerospace-Grade TC4 Titanium Alloy
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Technology: 3D Printed Hollow-Core Structure + Precision CNC Post-Finishing
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Weight Profile:
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Universal Front Mount: 4.6g
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Universal Rear Mount: Ultra-lightweight optimised profile
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(Up to 60% lighter than factory OEM steel/alloy adapters and 20% lighter than standard market alternatives)
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Rotor Compatibility: Reversible/adaptable for 140mm or 160mm disc rotors
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Caliper Compatibility: Natively optimized for Shimano Di2 road disc calipers (Dura-Ace R9270, Ultegra R8170, and 105 R7170)
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Dimensional Accuracy: Less than 0.02mm finish tolerance for dead-parallel pad alignment
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Hardware Finish: Premium PVD/Anodised coating matching the adapter body
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Available Finishes: Raw Stealth Titanium or Premium PVD/Anodised colourways
3D-Printed Hollow-Core Rigidity
By utilising cutting-edge industrial 3D printing technology, S-PARTS engineers have achieved what traditional CNC subtraction cannot: a complex internal hollow-core matrix. This advanced FEA-optimised geometry strategically eliminates material from zero-stress zones while thickening high-stress pathways. The result is a complete front and rear adapter kit that provides a rock-solid, zero-flex anchor point for your Shimano Di2 callipers, delivering a crisper, ultra-responsive brake lever feel under heavy braking loads.
Extreme Thermal Stability
Aggressive, sustained alpine descents can cause immense heat build-up inside hydraulic brake callipers. Unlike aluminium mounts, which soften and expand under high temperatures, aerospace-grade TC4 titanium boasts incredible thermal resistance. This ensures both the front and rear brackets maintain their structural stiffness and structural shape during long, heavy braking phases, preventing pad rub and guaranteeing consistent, fade-free stopping power from peak to valley.
All-Weather Agility & Perfectionist Finish
The S-PARTS titanium adapter bundle represents a perfect blend of agility, minimal weight, and sheer durability. Titanium is naturally 100% rust and corrosion-proof, making these adapters entirely impervious to salt air, wet-weather grit, and corrosive sweat. Post-printing, the adapters undergo micro-level CNC surface finishing to guarantee smooth, flush mating surfaces for absolute alignment precision across your entire braking system.
Available Configurations
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Universal Front & Rear Bundle (140/160mm): The standard flat-mount architecture bundle compatible with a vast majority of premium road/gravel disc frames and forks.
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Specialized SL8/SL7 Specific Bundle (160mm only): A tailored, flush-mount configuration set sculpted to seamlessly match the aerodynamic fork and frame profiling of the Specialized Tarmac SL8 and Aethos platforms.
⚠️ INSTALLATION NOTE: This package includes the specific adapter fixing and mounting hardware detailed below. Please note that caliper-to-adapter securing bolts are not included and must be sourced separately if needed. Always install the adapters and hardware using a calibrated torque wrench, following the torque values explicitly outlined in your frame and fork user manual.
In The Box
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1 x S-PARTS Titanium 3D Printed Flat Mount Front Brake Adapter
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1 x S-PARTS Titanium 3D Printed Flat Mount Rear Brake Adapter
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2 x S-PARTS Premium Titanium Front Fixing Bolts (For securing the front adapter to the fork)
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2 x S-PARTS Premium Titanium Rear Mount Bolts (For securing the rear adapter/calliper interface through the chainstay)
