Shimano Titanium Bolt Kit 69.9 g vs 105 179.3 g / UT 145.3 g / DA 117.7 g

The TiNE Shimano titanium bolt kit replaces every steel and alloy fastener across your shifters, calipers, derailleur, and crankset — regardless of whether you ride 105 R7170, Ultegra R8170, or Dura-Ace R9270. The titanium kit weighs 69.9 g across all three versions. The difference in savings comes entirely from how heavy each groupset's stock hardware is: 105 saves 109.4 g, Ultegra saves 75.4 g, Dura-Ace saves 47.8 g.

69.9 g — the same titanium weight for all three versions. Shimano ships identical-geometry steel bolts on every groupset. The 105 version saves the most (109.4 g) because 105 stock hardware is the heaviest. Dura-Ace saves less (47.8 g) because DA stock is already lighter. The titanium is the same — the savings depend on what you're replacing.

Why 105 Saves the Most — Key Individual Bolts

On a 105-equipped bike, three bolt zones account for over half the total 109.4 g saving:

The rear derailleur pivot bolt alone saves 6.4 g on 105 — the single largest bolt-for-bolt saving across all three groupsets. Dura-Ace's pivot bolt starts at just 3 g (already close to titanium weight), so the saving there is roughly 1 g. This is why 105's total saving is more than double Dura-Ace's: the stock parts that 105 ships are significantly heavier than what Dura-Ace uses.

Version Compatibility — Buy the Right Kit

All three kits share the same 69.9 g titanium total, but screw shapes differ between groupsets. Dura-Ace R9270 uses a distinct body bolt where 105/Ultegra use the R7170/R8170 body bolt. Buy the version matching your groupset — mix-and-match will not work. Each kit: Grade 5 Ti-6Al-4V, CNC machined, 8 anodized colors. The anodized layer adds surface hardness to prevent galling during installation and keeps threads clean through repeated brake-bleed procedures.