Shimano Road Titanium Bolt Kit – S-PARTS Drivetrain Screws for R8050 / R8150 / R9250
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Ultra-Light Titanium Upgrade for Shimano Ultegra Di2 R8150
Upgrade your Shimano Ultegra Di2 R8150 road groupset with the S-PARTS Titanium Drivetrain Bolt Kit.
Designed for Shimano R8150-series road components, this kit replaces selected original steel hardware with precision-machined titanium alloy parts. It helps reduce drivetrain weight while improving corrosion resistance and adding a clean, premium finish to your bike.
Each component is CNC machined for accurate fitment, dependable installation, and long-term durability. This kit is ideal for lightweight climbing bikes, aero race bikes, performance road builds, and high-end custom projects.
Key Features
Designed for Shimano Ultegra Di2 R8150 road groupsets
High-strength titanium alloy construction
Precision CNC-machined for accurate fitment
Lighter than standard steel hardware
Excellent corrosion resistance
Premium anodized finish options
Clean and refined drivetrain appearance
Ideal for lightweight and race-focused road-bike builds
Kit Contents
① Front Derailleur Mount Bolt ×1 ② Front Derailleur Spacer ×1 ③ Front Derailleur Support Bolt ×1 ④ Rear Derailleur Pivot Bolt ×1 ⑤ Guide Pulley Bolt ×1 ⑥ Tension Pulley Bolt ×1 ⑦ Limit Screws ×2 ⑧ B-Tension Screw ×1 ⑨ Crank Pinch Bolts ×2 ⑩ Crank Preload Cap ×1 ⑪ Chainring Bolts ×4 ⑫ Shift/Brake Lever Clamp Bolts ×2
Compatibility
Compatible with:
Shimano Ultegra Di2 R8150 road groupset
Shimano R8150-series electronic drivetrain components
Compatible Shimano Ultegra Di2 road shift/brake levers
Compatible Shimano road crankset hardware listed above
Please compare the original bolt shape, dimensions, and mounting position before ordering. Compatibility may vary depending on the exact component version and bike configuration.
Individual Shifter Clamp Bolt and Nut Set
Only need the titanium road shifter clamp bolt and nut set?
You can purchase it separately here:
Buy the S-PARTS Titanium Road Shifter Clamp Bolt and Nut Set
Material and Manufacturing
Material: High-strength titanium alloy
Manufacturing process: Precision CNC machining
Finish: Natural titanium or anodized Color options
Application: Road-bike drivetrain and control-component upgrade
Why Choose Titanium Hardware?
Titanium alloy provides an excellent balance of low weight, strength, corrosion resistance, and premium appearance.
Compared with standard steel hardware, titanium components help reduce unnecessary weight while maintaining dependable performance for their intended mounting positions. They are an ideal choice for riders who pay attention to every detail of a high-performance road-bike build.
Recommended Use
Perfect for:
Shimano Ultegra Di2 road bikes
Lightweight climbing bikes
Aero road bikes
Race-focused builds
Custom road-bike projects
Premium Shimano upgrades
Titanium hardware conversions
Installation Notes
Professional installation is recommended.
Use Shimano-recommended torque specifications for each mounting position.
Apply suitable anti-seize compound or assembly paste where required.
Do not overtighten titanium hardware.
Recheck all bolts after the first few rides.
Product Colors may appear slightly different under different lighting conditions.
Package Includes
1 × S-PARTS Titanium Drivetrain Bolt Kit for Shimano Ultegra Di2 R8050 / R8150 / R9250
Only the titanium parts listed in the kit contents are included. Bicycle components shown in product images are for display purposes only.
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