Titanium Bolt Kit — Shimano 105 vs Ultegra vs Dura-Ace

A titanium bolt kit replaces every Shimano drivetrain fastener — 26 positions, zero guesswork. Three versions differ in savings because stock weights vary across 105, Ultegra, and Dura-Ace.

Shimano 105 (R7170) Kit

The 105 kit delivers the largest savings — Shimano uses heavier steel here, the pivot bolt alone roughly 8.4g (TiNE: 2.0g). Total: TiNE 68.9g vs stock 177.3g, saving roughly 108.4g.

Ultegra (R8170) Kit

Ultegra uses lighter stock — pivot bolt roughly 3g. Still substantial: TiNE 59.3g vs 148.5g, saving roughly 89.2g. Covers pivot, jockey, barrel adjuster, limit/tension, bleed port, shifter hose, caliper hose.

Dura-Ace (R9270) Kit

Dura-Ace stock is already light (113.7g). TiNE 59.3g vs 113.7g, saving roughly 54.4g. The titanium advantage here is corrosion resistance and thread health — Ti-6Al-4V resists seizing far better than steel in aluminum.

Which Kit to Choose

Match the kit to your groupset — R7170, R8170, or R9270. Mixing versions tends to cause pitch mismatches. 105 riders: biggest gram savings. Dura-Ace riders: best corrosion and thread longevity.

Shimano full titanium bolt kits at tinetech.com