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 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 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 MY2113. Canyon Ultimate MY2114. Canyon Aeroad MY23 P1.7515. Canyon Ultimate MY23 P1.016. Cervelo (S5/R5 Pre-2026)17. Cervelo R5 202618. Cervelo S5 202619. Cervelo Soloist 202620. Colnago (C68/C64/V3Rs/V4Rs)21. Colnago V5Rs22. Colnago Y1Rs (with 3-piece Plug Pack)23. Evolve Cima24. Factor (Ostro Vam/O2 Vam)25. Factor One 202626. Giant TCR / Propel Gen 3 202527. Giant Propel Gen 4 UDH 202628. 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 202335. Scott Addict 202536. Seka Exceed37. Seka Spear38. Specialized (SL7/Aethos/Aethos 2/Venge/Crux/Crux 5)39. Specialized Tarmac SL9/SL840. Standert (Kreissage/Pfadfinder)41. Time (Scylon/Alpe D'Huez) F122 R164 P1.542. Time Scylon UDH - contact us for detail spec43. Trek 01 (2019-2021 Madone/Emonda)44. Trek Madone Gen745. Trek Madone Gen846. Winspace (SLC 2.0D/T1500D/T1550D)47. XDS AD948. XDS RT849. 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). 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)
