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Article published at:
July 16, 2026
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Most road bikes carry two bottle cages — that means four M5 bolts holding them to the frame. Steel M5×10 and M5×14 bolts weigh roughly 1.5–2 g each, adding up to 6–8 g across both cages. It sounds small, but on a weight-obsessed road bike, every gram at the frame level counts.
TiNE titanium water bottle cage bolts: M5×10 at 0.7 g and M5×14 at 0.8 g per bolt. Four bolts total roughly 3 g — roughly half the weight of stock steel hardware, with no strength compromise for cage retention.
| Bolt | Stock Steel | TiNE Titanium | Saved |
|---|---|---|---|
| M5×10 (×2) | ~1.5 g each | 0.7 g each | ~0.8 g each |
| M5×14 (×2) | ~2.0 g each | 0.8 g each | ~1.2 g each |
Water bottle cage bolts carry no dynamic load — they only hold the cage against the frame under static compression. Titanium's roughly 40% lower density compared to steel makes it a natural fit: the bolt clamps just as firmly, but weighs far less. The M5 thread diameter provides plenty of grip surface, and Grade 5 Ti-6Al-4V offers roughly 900 MPa tensile strength — well above what a cage bolt requires.