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A pair of steel chainring bolts weighs roughly 10-12g — five times heavier than TiNE's titanium opposed-lock pair at 2.0g. Five bolt pairs on a standard 110 BCD spider adds up fast, and that weight sits at the farthest point from the bottom bracket axle.
TiNE vs Steel Chainring Bolt — Per-Pair Breakdown
| Metric | Steel (typical) | TiNE Titanium |
|---|---|---|
| Single pair weight | ~10-12g | 2.0g |
| Five pairs (110 BCD) | ~50-60g | 10g |
| Bolt thread | M8 standard | M8 × 6mm |
| Nut thread length | Varies | 7mm |
| Tool interface | Hex + slot | Double-sided hex |
| Material | Chromoly steel | Grade 5 Ti-6Al-4V |
Double-Sided Hex — Tighten From Both Sides
Standard chainring bolts use a slotted nut — a flathead screwdriver slips on torque. TiNE's double-sided hex places a socket on both bolt head and nut. Two 5mm Allen keys work opposite each other for clean torque. The opposed-lock thread centers the bolt pair in the chainring tab bore.
Full Set Math & Installation
Five pairs on a 110 BCD spider: TiNE 10g versus roughly 50-60g steel, saving roughly 40-50g from the rotating assembly. Clean the chainring tab bores before install, thread each pair hand-tight, then torque in a star pattern to roughly 5-8 Nm with two 5mm Allen keys. Eight anodized finishes: Gold, Blue, Rainbow, Silver, Black, Pink, Green, and Multicolor. Hex socket interior stays raw titanium if anodizing wears off tool faces.
TiNE titanium double chainring bolts at tinetech.com