Overfast

OVERFAST Carbon Thru Axles for Specialized SL9 – Ultralight Road Disc Axle | 950kgf Strength

$310.00 SGD

할인 품절

배송료는 결제 시 계산됩니다.

Compatibility Specialized Tarmac SL9 (Pre Order)

29±1g | Patented Carbon–Alloy Bond | >950kgf Tensile Strength

Ultralight carbon thru-axles with aluminium thread and titanium insert, designed for modern disc brake road bikes.

✔ Significant weight reduction
✔ EN & UCI tested
✔ 2024 updated version
✔ Complimentary worldwide shipping

Overfast axles suitable for other bike brands, please click here.

For Specialized Tarmac SL8/SL7/Venge/Crux/Aethos: Click Here

Engineering Highlights

Patented Carbon-Alloy Interface

The critical load-bearing interface between the carbon shaft and aluminium threaded section uses a patented mechanical bonding structure. This prevents separation under torque and tensile loads. Overfast also uses aerospace-grade adhesives to bond the two for added peace of mind.

Titanium Insert

Titanium reinforcement for the hex wrench socket adds only 1g but significantly improves thread durability and long-term reliability.

Weight Savings

Saves ~100g compared to many stock thru-axles, depending on model.

Strength & Safety Testing

Each design passed both destructive and non-destructive testing, including:

Fatigue test with wheelset (EN standards)
Impact test with wheelset (UCI standards)
Maximum torque test (19Nm)
Tensile strength test (>950kgf)
Lateral compression test (100–200kg)
X-ray structural inspection
Carbon cap impact & fatigue testing (20J impact, 12Nm repeated torque)
1+ year real-world athlete testing
Threads are torqued to specification during QC inspection to ensure safety and fitment.

For a more detailed dive into the engineering, please see: 27g for a Pair: How OVERFAST Engineered the World's Lightest Thru-Axle

Assembly Information

Do not use RSP assembly paste. It may cause thread seizure.
Light marks on threads may be visible due to QC torque testing. Rest assured that all axles are brand new. This step is essential to guarantee the safety of the product.
Ensure the head of the tool is inserted at least 15mm into the thru-axle before tightening/loosening.
Use a torque wrench for installation. Recommended Torque: 7-9Nm
Tighten by hand initially to ensure the thread between the thru-axle and frame is aligned to prevent stripped threads.
Overfast uses a tighter thread tolerance, so please expect a tigher fit during assembly compared to stock axles.

Warranty Information

Warranty Coverage

All Overfast products are covered by a 2-year warranty against manufacturing defects. This warranty does not cover damage caused by misuse, accidents, crashes, improper installation, modification, or normal wear and tear.

Warranty Claims

To process a warranty claim, customers must provide clear photos and/or videos showing the issue. Once the claim has been reviewed and confirmed by Overfast, replacement parts will be arranged as quickly as possible.

Thru-Axles

For defective thru axles, please provide clear photos or videos of the affected product. Once the defect has been verified, a replacement will be shipped promptly.

Cranksets

If a crank arm suffers a confirmed manufacturing defect (non-user-related), please provide detailed photos and a description of the issue.

After approval:

- The defective crank arm must be permanently destroyed (for example, by drilling a hole through it).
- Evidence of destruction must be submitted.
- If only one crank arm is defective, only the affected side will be replaced.

Once the above requirements are met, the replacement will be arranged immediately.

Wheelsets

Warranty service for wheelsets depends on the specific component that has failed. After inspection, Overfast will provide the appropriate replacement part or component based on the confirmed issue.

Other Products

The same warranty process applies to all other Overfast products. As long as sufficient evidence is provided to verify a manufacturing defect, warranty claims will be prioritised and processed promptly.

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Crash Replacement Programme

For products damaged due to crashes, accidents, or other user-related incidents, Overfast offers a Crash Replacement Programme.

Eligible customers may purchase a replacement product at 30% off the recommended retail price (70% of MSRP).

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Notes

- All warranty claims are subject to inspection and approval by Overfast.
- Clear photos, videos, and any other requested documentation may be required before a claim can be approved.
- Overfast reserves the right to determine whether a claim qualifies under the warranty or the Crash Replacement Programme.

Returns & Refund Information

고객님께서 구매하신 제품에 만족하시기를 바랍니다. 단, 반품 및 환불은 제품 자체의 품질 문제(예: 균열 또는 구조적 손상) 에 한해서만 가능합니다 .

삐걱거리는 소리나 소음 과 같은 문제는 일반적으로 부적절한 설치 로 인해 발생하며 제품 결함으로 간주되지 않습니다 .

반품 및 환불 불가

다음과 같은 경우에는 반품이 허용되지 않습니다 .

부적절한 설치 또는 사용
정상적인 마모, 표면 자국 또는 미용적 흠집
오용, 과도한 토크 또는 사고로 인한 손상
제품의 모든 수정 또는 변경
사용 흔적이 있는 제품(클램프 또는 설치 흔적 포함)

잘못된 모델 주문으로 인한 반품

귀하가 잘못된 모델을 주문한 경우:

모든 반품 배송 비용은 귀하께서 부담하셔야 합니다.
반품이 접수되면 구매 금액에서 다음 금액을 제외한 금액을 환불해 드립니다.
- a) 7%의 결제 게이트웨이 수수료(이것은 우리 신용카드 회사가 우리에게 청구하는 금액입니다)
- b) "무료 배송"을 받으셨더라도 배송비는 당사가 자체 비용으로 배송비를 보조하므로 부담하셔야 합니다.