OVERFAST Carbon Thru Axles Compilation – 30g Ultralight Road Disc Axle | 950kgf Strength

From 30g per pair | 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

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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.

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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

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Option List:

1. 3T (1st Gen Strada)
2. Aurum (Magma/Tenerife/Essentia)
3. Basso (SV/Diamante/Venta/Astra)
4. Bastion (Archetype/Superleggera)
5. Bianchi (Specialissima/Oltre XR4)
6. Bigrock (Sohtea)
7. BMC (MY21 SLR01/SLR/TMR01)
8. BMC TMR (Teammachine R Latest)
9. BMC01 (MY20 RM01)
10. Cannondale (2023 Supersix Evo Gen4)
11. Cannondale (2025 Supersix Evo Gen5)
12. Canyon Aeroad MY21
13. Canyon Ultimate MY21
14. Canyon Aeroad MY23 P1.75
15. Canyon Ultimate MY23 P1.0
16. Cervelo (S5/R5 Pre-2026)
17. Cervelo R5 2026
18. Cervelo S5 2026
19. Cervelo Soloist 2026
20. Colnago (C68/C64/V3Rs/V4Rs)
21. Colnago V5Rs
22. Colnago Y1Rs (with 3-piece Plug Pack)
23. Evolve Cima
24. Factor (Ostro Vam/O2 Vam)
25. Factor One 2026
26. Giant TCR / Propel Gen 3 2025
27. Giant Propel Gen 4 UDH 2026
28. Look (795/796 Blade RS)
29. Merida (Reacto/Scultura)
30. Pinarello (Dogma F12/F)
31. Pinarello MY25 (F 2025)
32. Quick Pro (AR:ONE)
33. Quick Pro (ER:ONE+AR:ONE UDH Version)
34. Scott Foil 2023
35. Scott Addict 2025
36. Seka Exceed
37. Seka Spear
38. Specialized (SL7/Aethos/Aethos 2/Venge/Crux/Crux 5)
39. Specialized Tarmac SL9/SL8
40. Standert (Kreissage/Pfadfinder)
41. Time (Scylon/Alpe D'Huez) F122 R164 P1.5
42. Time Scylon UDH - contact us for detail spec
43. Trek 01 (2019-2021 Madone/Emonda)
44. Trek Madone Gen7
45. Trek Madone Gen8
46. Winspace (SLC 2.0D/T1500D/T1550D)
47. XDS AD9
48. XDS RT8
49. XDS RT9

Compatibility Notes

Available for most modern disc brake road bikes.

Please verify your specification before ordering:

• Canyon
  • MY21: M12 × 1.0 pitch
  • MY23: M12 × 1.75 pitch
• Trek
  • 2019–2021: 122mm front axle
  • Gen 7: 118mm front axle

Less common specifications are produced on a made-to-order basis (10-15 days production time).

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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. (Especially for Y1Rs rear axle)