S-PARTS TC4 Titanium Front Thru Axle & Air Spring Top Cap for FOX MTB Fork

S-PARTS Titanium Upgrade Parts for FOX MTB Forks

Upgrade your compatible FOX mountain bike suspension fork with S-PARTS precision-manufactured TC4 titanium hardware.

This collection includes a titanium front thru axle and air spring top cap for compatible FOX MTB suspension forks, providing a premium alternative for riders looking for lightweight, corrosion-resistant and highly detailed titanium components.

TC4 Titanium Front Thru Axle

The S-PARTS titanium front thru axle is designed as a replacement upgrade for compatible FOX mountain bike suspension forks.

Manufactured from high-strength TC4 (Ti-6Al-4V) titanium alloy, it combines low weight, excellent corrosion resistance and high mechanical strength in a component that plays an important role in securing the front wheel to the fork.

• TC4 (Ti-6Al-4V) titanium construction
• High strength-to-weight ratio
• Excellent corrosion resistance
• Precision-machined threads and contact surfaces
• Multiple premium titanium finishes available

TC4 Titanium Air Spring Top Cap

The S-PARTS titanium air spring top cap is designed for the air spring side of compatible FOX MTB suspension forks.

Precision CNC machining provides accurate dimensions and clean interfaces, while the titanium construction adds a distinctive premium detail to the fork.

Please confirm that your exact FOX fork model and generation are compatible before ordering.

Premium TC4 Titanium Alloy

S-PARTS uses carefully selected S-grade TC4 (Ti-6Al-4V) titanium alloy for its premium titanium components.

The selected material has an average tensile strength exceeding 1050 MPa, providing an excellent combination of strength, low weight and corrosion resistance for high-performance bicycle hardware.

Precision Forging & CNC Machining

Selected S-PARTS titanium components are produced using dedicated tooling and precision manufacturing processes.

Hot-forged components are formed using dedicated dies, followed by precision CNC machining of critical dimensions, threads and contact surfaces.

This manufacturing process helps provide accurate thread engagement, consistent fitment and a refined finish.

PVD & Anodized Titanium Finishes

S-PARTS titanium components are available in a variety of premium finishes.

Depending on the selected color, PVD or anodizing processes are used to create distinctive metallic finishes while maintaining the characteristic appearance of titanium.

Choose from classic titanium tones or more distinctive colors to coordinate the fork hardware with the rest of your MTB build.

Specifications

• Brand: S-PARTS
• Product Type: MTB Suspension Fork Upgrade Parts
• Available Parts: Front Thru Axle / Air Spring Top Cap
• Compatibility: Selected FOX MTB Suspension Forks
• Material: TC4 Titanium Alloy (Ti-6Al-4V)
• Manufacturing: Precision Forging & CNC Machining
• Finish: PVD / Anodized, depending on selected color
• Application: Mountain Bike Suspension Fork

Compatibility Notice

FOX suspension fork specifications can vary by model, generation and axle configuration.

Please select the option specifically listed for your fork. Do not assume compatibility based only on fork appearance or stanchion diameter.

If you are unsure which version you need, please send us the exact FOX fork model, model year and a photo of the original component before ordering. We can help confirm compatibility.

Installation

• Compare the S-PARTS component with the original FOX part before installation.
• Make sure all threads and contact surfaces are clean and undamaged.
• Follow the fork manufacturer's installation and torque specifications.
• Do not overtighten titanium components.
• For thru axles, confirm complete thread engagement and secure front-wheel installation before riding.
• Professional installation is recommended if you are unfamiliar with suspension fork servicing.

Package Contents

The package includes the S-PARTS titanium component selected from the product options.

FOX suspension fork, wheel and other bicycle components shown in product images are for reference only and are not included.

호환성 확인: 원제조업체(OEM) 부품의 모델과 배치가 복잡하기 때문에 이 제품이 호환되지 않는 경우가 있을 수 있습니다.

제품을 받으신 후 설치 전에 OEM 사양과 비교하여 호환성을 확인해 주시기 바랍니다.

토크 사양: 이 제품은 OEM 부품 매뉴얼에 명시된 토크 값에 따라 엄격히 설치하십시오. 설치 문제: OEM 사양과 차이가 있거나 설치 초기 단계에서 어려움이 발생할 경우 즉시 중단하고 반품 또는 교환을 위해 고객 서비스에 문의하십시오.

강제 설치 금지: 어떠한 경우에도 강제로 설치하지 마십시오. 책임: 이 제품(또는 그 부품)의 강제 설치 또는 무단 개조로 인한 모든 손해는 구매자의 단독 책임입니다.

모든 제품은 수령 시 보게 될 색상을 정확하게 표현하기 위해 촬영되었습니다.

조명, 각도 또는 화면 설정의 차이로 인해 약간의 색상 차이가 발생할 수 있습니다.

실제 제품을 기준으로 생각해 주시기 바랍니다. "컬러" 및 "블루" 제품의 경우 염색 과정에서 색상 분포가 고르지 않을 수 있어 각 제품이 독특합니다.