Shimano Ultegra R8170 Di2 Build Kit, Aeolus Pro 51 Carbon Wheels, 12-Speed, Disc

SKU: 

601842941751

$2,699.95 $3,499.99
by Trek
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Shimano Ultegra R8170 Di2 12-Speed Build Kit w/ Aeolus Pro 51 Wheels – Take-Off

This Shimano Ultegra R8170 Di2 12-speed build kit delivers top-tier performance for your next road bike build. With crisp wireless Di2 shifting, powerful hydraulic braking, deep-section carbon wheels, and aero cockpit components, this setup is optimized for speed, integration, and versatility.

Please note: This kit was removed from a brand-new, unridden bike and may show light signs of installation. Includes only the items shown in the photos.

Included in this kit:

  • Shimano Ultegra R8170 Di2 Shifters – 12-Speed
    Wireless dual-control levers with responsive shifting and fully integrated hydraulic brakes.

  • Shimano Ultegra R8150 Di2 Front Derailleur – Braze-On
    Compact and precise front shifting with clean electronic operation.

  • Shimano Ultegra R8150 Di2 Rear Derailleur – 34T Max Cog
    Bluetooth-enabled with integrated charging, supporting smooth Shadow RD+ chain control.

  • Shimano Ultegra R8100 Crankset – 52/36T, 175mm Length
    Mid-compact gearing paired with Hollowtech II construction for efficient power transfer.

  • Shimano Ultegra R8100 Cassette – 11-30T, 12-Speed
    Refined 12-speed progression with Hyperglide+ tech for seamless gear transitions under load.

  • Shimano M8100 Chain – 12-Speed
    Ultegra/XT-level chain compatible with Shimano 12-speed drivetrains, optimized for efficiency.

  • Shimano Ultegra Hydraulic Disc Calipers – Flat Mount (Front & Rear)
    Lightweight, compact calipers delivering consistent braking performance in all conditions.

  • Shimano MT800 Rotors – 160mm, Centerlock (Front & Rear)
    IceTech construction for heat control and reliable braking with low noise.

  • Bontrager Aeolus Pro 51 Carbon Wheels – Tubeless Ready
    Aero-focused 51mm deep OCLV Carbon rims designed for speed and stability.

    • Front: 100x12mm thru axle

    • Rear: 142x12mm thru axle, Shimano 11/12-speed freehub

  • Bontrager R3 Tires – 700x25c, 120 TPI, Aramid Bead
    Fast-rolling tires with puncture protection and confident road grip.

  • Bontrager Elite Aero VR-CF Handlebar – Alloy, 44cm Width
    Aero-profile bar with internal cable routing, 93mm reach / 123mm drop.

  • Bontrager Pro Stem – 110mm Length, -7° Rise
    Blendr-compatible stem for clean cockpit integration of accessories.

  • Bontrager Aeolus Comp Saddle – 145mm Width, Steel Rails
    Short-nose saddle with pressure relief channel and supportive shape.

Why this kit?
This Ultegra R8170 Di2 kit pairs wireless shifting with carbon aero wheels and an integrated cockpit, making it ideal for any rider building a fast, modern road bike with clean lines and uncompromising performance.