Product Description

Ultralight Grade 5 titanium bolts, thru axles and seatpost hardware for the Specialized Tarmac SL9. Choose from 12 options, from a 0.2 g head tube stop bolt to a complete thru axle kit. Pick your color and cut weight without giving up strength.

Key Specifications

Material: Grade 5 titanium alloy (Ti-6Al-4V)
Average tensile strength: over 1,050 MPa (industry minimum: 895 MPa)
Strength vs. weight: overall performance comparable to Class 10.9 steel fasteners at roughly half the weight
Fits: Specialized Tarmac SL9

Installed on the Tarmac SL9

Options & Specifications

Option	Size / Contents	Weight	Tool
1. Head Tube Stop Bolt	M3 × 8 mm	0.2 g/pc	T10 Torx
2. Thru Axle Kit	Front: M12 × 1.0, 120 mm Rear: M12 × 1.0, 164 mm Includes 2 thru axles and 2 conical washers	46.5 g/set	6 mm hex key
3. 3DAM Thru Axle Kit	Front: M12 × 1.0, 121.5 mm Rear: M12 × 1.0, 166.5 mm	—	6 mm hex key
4. 3DAM Seatpost Hardware Kit	1 × 3DAM seatpost cradle (Specialized-specific) 2 × 3DAM saddle clamps 1 × half-round washer 1 × cylindrical nut 2 × dome-head bolts Maximum rider weight: 90 kg (198 lb)	29.5 g/set	T25 + T30 Torx
5. Bottle Cage Bolts (4 pcs)	M5 × 12 mm	4.0 g/set	T20 Torx
6. Front Derailleur Mount Bolts (2 pcs)	M4 × 14 mm	1.6 g/set	T20 Torx
7. Seatpost Wedge Bolt	Sold as a set	5.7 g/set	T30 Torx
8. Seatpost Clamp Bolts	Sold as a set	6.6 g/set	T20 + T30 Torx
9. Bike Computer Mount Bolt Kit	Sold as a set	6.0 g/set	T20 + T25 Torx
10. Integrated Handlebar Bolts	Sold as a set	4.3 g/set	T25 Torx
11. Integrated Handlebar Nuts	Sold as a set	4.1 g/set	T20 Torx
12. Stem Top Cap Bolt	M6 × 30 mm	3.4 g/pc	T30 Torx

Option 3: The 3DAM Thru Axle Kit is not compatible with the S-PARTS dedicated titanium thru axle quick-release wrench. Use a 6 mm hex key instead.

Option 7: Must be used with the original factory conical washer.

Available Colors

3DAM Thru Axle Kit (Option 3): Gold, Titanium, Candy, Indigo, Splatter Pop, Neon Splatter, Digital Camo, Tiger Green-Gold, Jaguar Green-Gold, Snowstorm, Topographic Glacier

3DAM Seatpost Hardware Kit (Option 4): Gold, Rainbow, Black, Blue, Green, Purple, Indigo, Splatter Pop, Neon Splatter

All other options: Gold, Rainbow, Titanium, Black, Blue, Green, Purple, Candy, Indigo, Copper

Candy: Because of the coloring process, the Candy finish has fluid color variations and a naturally random appearance. Each piece may have a slightly different color pattern.
White lines: Some bolts may show white lines on the threads. This is a normal result of the coloring process and does not affect use.

Color Finishes

PVD nitride coating: Gold, Rainbow, Black, Blue, Copper
A dense metal nitride layer forms on the part surface, increasing surface hardness and impact resistance. The color is part of the surface layer, so it resists fading under normal use. Only heavy abrasion wears it down, and the finish holds up in rain and mud.

Anodizing: Green, Purple, Candy, Indigo
Electrolytic oxidation builds an oxide layer of varying thickness on the titanium, increasing surface hardness and corrosion resistance. The thickness of the layer affects how light is refracted, and as incoming and reflected light interfere, they produce vivid color. No dye is used.

Built to Last

Aerospace-supply-chain titanium. S-PARTS sources its titanium through a metal raw material supply chain serving the civil aerospace industry in Xi'an, China. Material is compared and tested in the lab on an ongoing basis, and only titanium that meets S-PARTS standards is used.

Hot-forged heads. Bolt heads are forged in custom S-PARTS dies at 650 °C. To hold precision at that temperature, each die is used no more than 300 times.

Precision CNC machining. Fastener bodies are machined in-house on military-grade precision CNC machines. Micron-level tolerance control gives clean, precise thread engagement.

Specialized® and Tarmac® are registered trademarks of Specialized Bicycle Components, Inc. S-PARTS is an independent aftermarket brand and is not affiliated with or endorsed by Specialized.