Product Description

Ultra-Light Titanium Upgrade for Shimano 105 Di2 R7150

Upgrade your Shimano 105 Di2 R7150 groupset with the S-PARTS Titanium Drivetrain Bolt Kit.

Designed specifically for Shimano R7150-series road components, this kit replaces selected original steel hardware with precision-machined titanium alloy parts. It helps reduce unnecessary drivetrain weight while improving corrosion resistance and adding a clean, premium finish to your bike.

Each component is CNC machined for accurate fitment, reliable installation, and long-term durability. It is an ideal upgrade for lightweight climbing bikes, aero road bikes, race builds, and high-end custom projects.

Key Features

• Designed for Shimano 105 Di2 R7150 road groupsets
• High-strength titanium alloy construction
• Precision CNC-machined for accurate fitment
• Lighter than standard steel hardware
• Excellent corrosion and weather resistance
• Multiple anodized color options available
• Premium detailing for custom road-bike builds
• Suitable for performance, racing, and weight-saving upgrades

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 105 Di2 R7150 road groupset
• Shimano R7150-series front and rear derailleurs
• Shimano 105 Di2 road shift/brake levers
• Compatible Shimano road crankset hardware as 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 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. It is an ideal material for riders who want to refine the smallest details of a performance-focused road-bike build.

Compared with standard steel hardware, titanium components can help reduce weight while maintaining dependable strength for their intended application.

Recommended Use

Ideal for:

• Shimano 105 Di2 road bikes
• Lightweight climbing builds
• Aero race bikes
• Custom road-bike projects
• High-end component upgrades
• Titanium hardware conversions

Installation Notes

• Professional installation is recommended.
• Use the torque specifications recommended by Shimano for each mounting position.
• Apply suitable anti-seize compound or assembly paste where required.
• Do not overtighten titanium hardware.
• Check 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 105 Di2 R7150

Only the titanium parts listed in the kit contents are included. Bicycle components shown in product photos are for display purposes only.

Compatibility Check: Due to the complexity of original equipment manufacturer (OEM) parts' models and batches, there may be instances where this product is incompatible.

Upon receiving this product, please compare it with the OEM specifications to ensure compatibility before installation.

Torque Specifications: Install this product strictly according to the torque values specified in the OEM parts manual.Installation Issues: If you encounter any discrepancies with the OEM specifications or face difficulties at the initial stage of installation, stop immediately and contact customer service for assistance with returns or exchanges.

No Forced Installation: Do not force installation under any circumstances.Liability: Any damages resulting from forced installation or unauthorized modifications of this product (or its components) will be the sole responsibility of the buyer.

All products are photographed to accurately represent the colors you will see upon receipt.

Due to differences in lighting, angles, or screen settings, slight color variations may occur.

The actual product should be considered the standard.For "colored" and "blue" products, the coloring process may result in uneven color distribution, making each product unique.