Precision Portfolio
High-Performance Titanium Hardware & Headset Assemblies
Precision-machined from certified aerospace-grade titanium billet. Ultra-lightweight, zero-corrosion structural fasteners engineered to withstand demanding coastal marine environments and elite competition loads.
13+
Years of CNC Mastery
±0.01mm
Machining Precision
1,000+
B2B Global Clients
≤ 4h
B2B Inquiry Turnaround
Technical Whitepaper
Metallurgical Integrity & Precision Headset Stacking Physics
Why custom builders, professional racing ateliers, and boutique frame designers in Venice and across the Veneto region are transitioning away from standard aluminum spacers and carbon laminates to TC4 Titanium alloy.
Preload Uniformity & Steerer Clamping Torque
In modern performance road, gravel, and urban integrated cockpits, headset spacers are load-bearing compression members. When tightening the compression bolt to set angular contact bearing preload (typically 4–6 Nm), conventional extruded aluminum or composite rings deform unevenly due to minor surface perpendicularity runouts.
Velnora CNC-machines every titanium headset spacer from cold-drawn Ti-6Al-4V hollow bar, holding surface flatness and parallel plane runout within ±0.005 mm. This eliminates bearing binding, eliminates headset creaking, and maintains steady pre-tension under high-vibration cobbles.
Marine Galvanic Neutrality & Salt Air Immunity
Venetian humidity and seawater mist (Acqua Alta) create catastrophic galvanic corrosion when aluminum components contact stainless steel bearings or carbon steerer tubes. The electronegative potential of aluminum promotes pitting and structural seizure within headset bearings and steerer junctions.
Titanium naturally establishes a dense, thermodynamically stable amorphous titanium dioxide (TiO₂) passivation layer instantaneously upon air exposure. This inert boundary layer provides complete galvanic compatibility with 304/316 stainless bearings and epoxy resins, guaranteeing zero cold-welding or surface degradation.
Fatigue Strength-to-Weight Optimization
With a density of 4.43 g/cm³, Ti-6Al-4V provides a tensile yield strength exceeding 830 MPa—nearly double that of 6061-T6 aluminum. This enables our CNC technicians to mill custom ultra-thin-walled headset spacers (down to 1.1 mm wall gauge) without sacrificing hoop stress resistance.
Unlike unidirectional carbon fiber spacers that can crush or crack under localized stem pinch clamp forces or accidental over-torquing, titanium provides superior dampening of micro-vibrations with exceptional resilience against hoop stress and shear stress failure.
| Material Evaluation Criteria | Velnora Gr5 Ti-6Al-4V | Grade 2 Pure Titanium | 6061-T6 Aluminum | High-Modulus Carbon Fiber |
|---|---|---|---|---|
| Density (g/cm³) | 4.43 | 4.51 | 2.70 | 1.55 – 1.65 |
| Tensile Yield Strength (MPa) | 830 – 895 | 275 – 345 | 276 | 600 – 1200 (Directional) |
| Modulus of Elasticity (GPa) | 114 | 103 | 68.9 | 135 – 180 |
| Lagoon Salt Fog / Pitting Resistance | Impervious (ASTM B117) | Impervious | Severe Oxidation / Pitting | Inert (Delamination Risk) |
| Galvanic Action with Carbon Fiber | Zero Corrosion (Cathodically Safe) | Zero Corrosion | High Galvanic Risk | N/A (Resin Compatible) |
| Radial Compression Failure Risk | Virtually Non-existent | Low | Deforms Under Over-torque | Susceptible to Pinch Cracking |
Venetian Context
Localized Applications & Veneto Cycling Industry Trends
Engineered for the unique geographical microclimates, historic artisanal frame-building heritage, and contemporary logistics requirements of Venice, Mestre, Treviso, and the wider Veneto territory.
Venice Maritime Climate Defenses
Venice and the surrounding archipelago (Murano, Lido, Pellestrina) present an intensely aggressive operating environment. The combination of saturated saline atmosphere, recurrent Acqua Alta floodwaters, and daily condensation wreaks havoc on standard stem clamp interfaces.
Our Grade 5 titanium headset spacers and M6 flat-head stem bolts provide the definitive remedy for local bike-commuters, delivery fleets, and rental operators facing premature bearing replacement and stem seizure caused by sea spray.
Bespoke Veneto Ateliers & Custom Builders
The Veneto region is the historic heartland of elite Italian cycling manufacturing, home to world-renowned frame builders, titanium fabricators, and master artisans around Vicenza, Treviso, and Padua who prioritize aesthetics and precision.
We provide these specialized ateliers with custom outer diameters, internal wire-routing cutouts, tapered conical top-cap integration, and custom surface treatments (mirror micro-polishing, fine bead blasting, and custom PVD titanium coatings) matching customized tube sets.
Gravel Boom: From the Lagoon to the Dolomites
Veneto has become Europe's prime gravel frontier, connecting the flat saltwater tracks of the Venetian Laguna to the grueling gravel cols of the UNESCO Dolomites. Multi-surface riders demand absolute front-end dampening without rotational looseness.
Titanium's unique elastoplastic dampening characteristics smooth out high-frequency road chatter over ancient stone pavement and alpine gravel, protecting headset bearing races from premature brinelling under off-road touring stress.
Direct Manufacturer
The Velnora Advantage: Baoji's Precision Engineering
Operating from China's Titanium Valley since 2013, Velnora Titanium Industry Co., Ltd. combines dedicated metallurgy with aerospace CNC precision, delivering wholesale OEM/ODM manufacturing directly to European importers.
Baoji Raw Material Traceability
Direct sourcing from China's primary titanium smelting corridor. Complete 3.1 chemical and mechanical mill test certifications supplied with each batch to assure strict TC4 (Ti-6Al-4V) purity.
In-House 5-Axis Multi-Tasking
High-speed Swiss lathes, Wire EDM, and multi-axis CNC milling centers guarantee precision bore concentricity (<0.008 mm) and razor-sharp chamfers that match fork steerers seamlessly.
Electrolytic Anodizing & PVD
Proprietary spectral anodizing without organic pigments (Gold, Cyan, Burnt Rainbow, Rose, Deep Purple) and durable titanium nitride (TiN) physical vapor deposition for maximum scratch resistance.
Production Transparency
Complete traceability and visual transparency. We publish and provide CNC process photos, dimensional inspection videos, and thread micrometer validation reports before shipment clearance.
Procurement Knowledge
Frequently Asked Questions: B2B Titanium Headset Spacer Sourcing
Technical clarity for European purchasing directors, custom frame builders, and distributors importing from China to Italy.
What are the standard dimensions and steer tube tolerances for headset spacers?
We manufacture titanium headset spacers for standard 1-1/8 inch (28.6 mm) steer tubes, 1-1/4 inch (31.8 mm) oversized road/gravel steerers (common on modern Italian performance carbon forks), and 1.5 inch (38.1 mm) straight downhill or integrated systems. Our standard internal diameter tolerance is held strictly to +0.05 / +0.10 mm to ensure a smooth, rattle-free slide over carbon or alloy steerers without scoring the matrix. Standard stack heights range from 2 mm, 3 mm, 5 mm, 10 mm, 15 mm, to 20 mm, alongside custom tapered integration cones.
Can Velnora produce internal routing headset spacers for fully integrated cockpits?
Yes. Fully integrated internal cable routing (ICR) is now standard across Italian road and gravel bikes. We produce custom interlocking titanium spacers engineered with wire and hydraulic line channels, internal locking pins, and D-shaped steerer interfaces. Simply provide your 3D STEP or IGES CAD files, and our engineers will verify wall clearance, tool access, and chamfer radii to prevent brake hose pinch and friction wear.
How does titanium anodizing hold up against Venice's marine air compared to aluminum?
Unlike aluminum anodizing, which relies on organic dye molecules trapped inside an artificially sealed porous aluminum oxide film (which degrades, bleaches under Mediterranean UV rays, and chalks under salt fog), titanium anodizing uses precision voltage to grow a coherent, transparent titanium dioxide barrier. The perceived color is produced entirely through microscopic light interference (optical refractive index). Because it contains zero dyes or pigments, it will never flake, peel, fade under intense sunlight, or suffer galvanic pitting in Venice's salt-heavy sea fog.
What are your OEM/ODM Minimum Order Quantities (MOQ) and sample lead times?
For standard round spacers in raw satin, polished, or standard anodized colors, our typical wholesale MOQ starts at 100 to 200 pieces across assorted sizes. For fully customized profiles, intricate laser engravings, or proprietary integrated cockpit shapes, typical MOQs are 200 to 500 pieces. Rapid prototyping runs for engineering validation can be machined and dispatched via air courier within 7 to 10 working days upon drawing approval.
What shipping logistics, customs documentation, and terms apply for delivery into Venice and Italy?
We routinely ship to European freight hubs under DAP, DDP, FOB, and CIF Incoterms. For rapid express orders, express courier (DHL, FedEx, UPS) directly delivers to Venice/Mestre mainland facilities within 4 to 6 business days. For containerized or volume pallet orders, consolidated air freight to Venice Marco Polo Airport (VCE) or maritime shipping to the Port of Venice (Porto Marghera) is standard. We provide complete EU customs documentation, including Commercial Invoices with correct HS codes (8108.90 for titanium articles), Packing Lists, and Certificates of Origin.
Request Engineering Review & Wholesale Pricing
Partner directly with Baoji's dedicated titanium manufacturing plant. Share your CAD drawings, standard specifications, or custom finish requirements to receive an itemized factory quotation and 3D technical evaluation within 4 hours.