TiNE TC4 Titanium Bolt Kit for Shimano Dura-Ace R9270 / Ultegra R8170 / 105 R7170 | 39 Bolts + Accessories

Replace selected steel fasteners across a Shimano 12-speed Di2 groupset with the TiNE ultralight TC4 titanium bolt upgrade kit. Designed for Dura-Ace R9270, Ultegra R8170 and 105 R7170, it includes precision-machined bolts, matching washers and installation accessories for a coordinated road-bike build.

Fitment and weight after upgrade

• Shimano 105 R7170: 68.9g after upgrade; 108.4g reduction
• Shimano Ultegra R8170: 68.9g after upgrade; 79.6g reduction
• Shimano Dura-Ace R9270: 59.3g after upgrade; 54.4g reduction
• Systems: Shimano 12-speed electronic Di2 and hydraulic road configurations

Manufacturing and finish

Each component uses aerospace-grade TC4 titanium alloy, 5-axis CNC precision machining and anodized finishing. The source cites finite-element analysis and real-world riding evaluation. The kit targets reduced weight (up to 108g compared with original bolts), corrosion resistance, fatigue life, accurate fitment and a refined hidden-fastener appearance.

Available colors

Gold, Silver, Rainbow, Candy, Green, Blue, Black and Pink.

Included bolt positions (39 bolts plus accessories)

Shifter Area

• Bleed port bolts ×2

• Clamp nuts ×2

• Clamp washer rings ×2

• Hose lock bolts (shifter side) ×2

Brake Caliper System

• Hose lock bolts (caliper side) ×2

• Caliper body bolts – R9270 ×2

• Caliper body bolts – 71/81 large ×2

• Caliper body bolts – 71/81 small ×2

• Caliper bleed port bolts ×2

• Brake pad retaining pins ×2

• Caliper countersunk bolts ×2

• Rear caliper post bolts (35mm) ×2

• Front brake adapter ×1

• Specialized Flash adapter (front) ×1

Derailleur System

• Front derailleur fixing bolt (with wedge) ×1

• Rear derailleur pivot bolt ×1

• Pulley wheel bolts ×2

• B-tension screw ×1

• Rear derailleur limit screws ×2

Crankset

• Crank arm fixing bolts ×2

• Chainring bolts ×4

Rotor

• Internal lockring covers ×2

Package contents

• 39 CNC titanium bolts with matching washers
• 1 tube of titanium anti-seize compound (5g) to help prevent galling
• 1 TiNE installation manual
• 1 premium black presentation / gift box

Ordering note

Designed for standard Shimano R9270 / R8170 / R7170 12-speed Di2 configurations. Check individual component positions and variant fit before fitting; use the supplied installation guide and anti-seize paste where appropriate.