Explore our export-grade Ti-6Al-4V fasteners and precision bicycle hardware components. Direct-from-factory production with calibrated tolerances down to ±0.01 mm for the Iberian cycling industry.
Polished finish ISO standard rotor studs offering ultra-low rotational mass and supreme shear resistance across rugged Collserola descent trails.
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Button head titanium alloy fixing screws engineered to eliminate cockpit creep and maintain headset preload integrity under high torque.
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Plain-finish Class 12-rated flange bolts delivering high surface area clamping load distribution for structural linkages and motor mountings.
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Metric-threaded derailleur hanger bolts with anodized color customization, defending sensitive rear dropouts from coastal maritime oxidization.
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Anodized high-tensile bolts configured for severe clamping stresses, suspension pivots, and performance drivetrain interfaces.
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Multi-color temperature cleanroom inspection luminaire, utilized inside CNC quality-control bays for micrometer thread verification.
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M8*25 flush-mount countersunk screws for track and road sprockets, maintaining zero clearance protrusion under aggressive pedaling cycles.
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CNC machined seatpost collar bolts engineered with rolled metric threads, preventing thread galling and carbon post slippage under 6.0 Nm.
Product Details →In high-performance bicycle manufacturing, the seatpost clamp is an overlooked yet structurally critical interface. A sub-standard collar produces uneven circumferential pinch points, creating severe localized shear stresses along high-modulus carbon fiber seat tubes. This often leads to microscopic carbon delamination, premature component fatigue, or chronic seatpost slipping under high vibrational dynamic loading.
At Jiaxing Wexra Titanium Products Co., Ltd., our titanium seatpost collars are CNC-machined from solid aerospace-certified Grade 5 Ti-6Al-4V (ASTM B348) billet stock. By combining a lower modulus of elasticity (approx. 110-114 GPa compared to steel's 200 GPa) with an exceptional tensile yield strength exceeding 830 MPa, our clamps flex uniformly around the seat tube circumference.
Mechanical Advantage: Ti-6Al-4V Grade 5 titanium delivers true radial hoop stress distribution. When torqued to an operational 5.0 to 6.2 Nm, it secures carbon seatposts completely slip-free without pinching delicate structural walls, while remaining 44% lighter than stainless steel collars.
Furthermore, our integrated spherical washer and barrel nut assemblies dynamically self-align during tensioning. This design eliminates asymmetric bending moments on the clamping bolt shank, avoiding cyclic fatigue fractures during grueling endurance gravel rides across Catalonia's mountainous topography.
Barcelona and the wider Catalonia region constitute one of the world's most vibrant cycling hubs. From coastal commuter fleets to elite gravel expeditions, our titanium components are engineered to master the exact micro-climates and riding demands of this territory.
The rugged fire roads of Collserola and Montseny demand relentless shock absorption and fatigue resilience. Standard aluminum clamps often develop stress-crack propagation over repetitive rocky washboards. Our Ti-6Al-4V clamps provide superior fatigue life limits, damping micro-vibrations without losing torque retention across long, punishing rides.
Barcelona's coastal maritime environment subjects bicycle hardware to intense airborne chloride salts. Aluminum seatpost collars are notorious for galvanic bonding and galvanic corrosion when paired with carbon frames or titanium posts, resulting in seized parts. Titanium forms an impermeable titanium dioxide (TiO2) passive layer, completely immune to sea mist rust and pitting.
From atelier workshops in Poblenou and Gràcia to custom builders in Girona, Catalonia is home to world-renowned frame crafters specializing in titanium, steel, and high-modulus carbon. Wexra supports these artisans with precision OEM/ODM fabrication, bespoke inner diameters (29.8, 31.8, 34.9, 36.4mm), custom laser engravings, and tailored PVD color finishes.
Understanding shifting consumer expectations and procurement habits across the Iberian cycling sector allows brands to secure competitive advantage through material innovation.
Catalonia's gravel boom is merging with lightweight e-mobility. Riders demand maximum structural payload support for bikepacking luggage without adding unnecessary grams to premium carbon setups.
Barcelona cyclists increasingly reject planned obsolescence. While anodized aluminum collars strip and oxidize after a few winter seasons, titanium products boast an infinite structural lifespan, fitting the EU circular economy ethos.
Customization defines modern urban riding in Barcelona. Demands have surged for electrochemical anodization in oil-slick, burnt bronze, gold, and royal purple hues to coordinate with anodized headsets and hubs.
With Barcelona's steep Montjuïc descents and Girona's pro peloton corridors, bike brands cannot risk component slippage. Purchasing agents insist on verified ISO 4210 testing certification and traceable mill test reports.
A data-backed mechanical comparison illustrating why Grade 5 Titanium outperforms 7075-T6 aluminum and 316 stainless steel in high-torque, marine-exposed clamping applications.
| Material Specification | Density (g/cm³) | Tensile Strength (MPa) | Yield Strength (MPa) | Elastic Modulus (GPa) | Corrosion Resistance | Galvanic Safety (Carbon) |
|---|---|---|---|---|---|---|
| Titanium Gr5 (Ti-6Al-4V) | 4.43 | ≥ 895 | ≥ 830 | 114 | Immune to Marine Cl- | Completely Safe |
| Titanium Gr2 (CP Alpha) | 4.51 | ≥ 345 | ≥ 275 | 105 | Exceptional | Completely Safe |
| Aluminum 7075-T6 | 2.81 | ≥ 572 | ≥ 503 | 72 | Prone to Pitting | Severe Galvanic Risk |
| Stainless Steel 316 | 8.00 | ≥ 580 | ≥ 290 | 193 | High | Low Risk (Heavy) |
Founded in 2018 in Jiaxing, Zhejiang, Jiaxing Wexra Titanium Products Co., Ltd. specializes strictly in the engineering and export of high-grade titanium fasteners, custom CNC components, and bicycle assemblies. Operating inside a cutting-edge 1,000+ m² production complex, we serve premier cycling, motorsport, and industrial clients across Germany, the UK, the United States, Canada, and Spain.
Essential regulatory, technical, and logistics intelligence for purchasing directors, frame ateliers, and cycling distributors across Spain.
Titanium seatpost clamps and bicycle fasteners imported into Spain typically fall under TARIC code 8714.99.90.89 (Bicycle parts and accessories) or 8108.90.90 (Articles of titanium). Standard third-country customs duty into the European Union is typically 4.7% for cycle parts. Importers registered with an active Spanish EORI number and VIES VAT (NIF-IVA) registration can utilize standard customs deferred accounting via Port de Barcelona or Josep Tarradellas Barcelona-El Prat Airport customs terminals.
While aluminum collars generate severe galvanic potential when in direct contact with carbon fibers in humid Mediterranean coastal environments, titanium (Ti-6Al-4V) has a galvanic potential very close to carbon on the galvanic series chart. Consequently, galvanic corrosion is virtually zero. We always recommend assembling with titanium-specific anti-seize paste or carbon friction compound to guarantee smooth torque readings and prevent micro-fretting.
We produce standard and custom inner diameters including 28.6 mm (for 25.4 mm posts), 29.8 mm / 30.0 mm (for 27.2 mm steel/Ti frames), 31.8 mm (for 27.2 mm carbon frames), 34.9 mm / 35.0 mm (for 30.9 mm and 31.6 mm posts), and 36.4 mm / 38.6 mm for oversized modern gravel and aero seat tubes. Custom asymmetric clamp collars and integrated dropper cable guides can be manufactured to your exact 3D models.
For standard catalog sizes, our MOQ starts at just 50 pieces per batch, making it ideal for independent framebuilders and custom bike shops. For bespoke OEM/ODM custom geometries with laser branding, our MOQ is 200 pieces. Air express delivery via DHL/FedEx to Barcelona takes 4 to 6 business days, while standard ocean freight consolidations to Port de Barcelona take approximately 28 to 32 days.
Every batch shipped to European buyers includes an official EN 10204 3.1 Mill Test Certificate (MTC) detailing complete chemical composition (Ti, Al, V, Fe, C, N, H, O) and mechanical properties (tensile yield, elongation). In addition, full dimensional inspection logs, coating thickness verification reports, and RoHS/REACH declaration certificates are supplied for your incoming supplier quality audits.
Whether you need small-batch precision titanium collars for bespoke titanium frames or high-volume series production for an established European cycling brand, our engineering team in Jiaxing is ready to review your CAD files and technical requirements.