S-PARTS Titanium Bolt Kit for Shimano Ultegra Di2 R8170 Disc Brake & Shifter
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he S-PARTS Titanium Bolt Kit for Shimano R8170 is a complete lightweight hardware upgrade designed for Shimano road disc brake systems.
This kit replaces the original steel bolts on calipers, shifters, hydraulic hose connections, and mounting points , delivering reduced weight, improved corrosion resistance, and a premium custom finish.
Precision CNC-machined from high-grade titanium, every bolt is engineered to match Shimano's original specifications, ensuring perfect fit, safety, and reliability for performance road bikes.
Upgrade Crankset, Rear Derailleur & Pulley Wheels — Click here
Compatibility
Shimano Road Disc Brake System: R8170
Compatible Components:
Brake calipers (front & rear)
Hydraulic hose connections
Shifter bodies
Caliper adapters & mounting points
️ Bolt layout may vary slightly by production batch. Actual contents prevail.
Included Hardware (Full Set)
All items below are included in the R8170 full bolt kit , each supplied in pairs where applicable:
① Shifter Clamp Bolt: 2 pcs
② Shifter Oil Port Bolt: 2 pcs
③ Brake Lever Clamp Bolt: 2 pcs
④ Front Clamp Fixing Bolt: 2 pcs
⑤ Brake Caliper Clamp Bolt: 2 pcs
⑥ Brake Caliper Main Body Bolt A: 2 pcs
⑦ Brake Pad Retaining Pin: 2 pcs
⑧ Brake Caliper Main Body Bolt B: 2 pcs
⑨ Brake Caliper Oil Port Bolt: 2 pcs
⑩ Rear Clamp Fixing Bolt: 2 pcs
Key Specifications
Material: Titanium alloy
Manufacturing: CNC machined
Total Weight: approx. 45.13 g / set
Finish: Anodized (multiple Colors available)
Important Installation Notes
Caliper body bolts, bleed screws, and shifter bleed port screws must be used together with the original factory sealing O-rings.
Please install strictly according to Shimano original torque specifications .
This product includes titanium bolts only . Brake calipers, shifters, hoses, and adapters are not included.
Why Choose S-PARTS?
Designed by riders, for riders
Trusted by weight-focused road bike enthusiasts
Precision fit for modern Shimano disc systems
Clean aesthetics with real performance benefits
Upgrade your Shimano R8170 setup with S-PARTS titanium hardware — lighter, stronger, and built for high-end road cycling.
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