RISK RT105 Titanium Bolt Kit for Shimano Ultegra R8000 — 49PCS Full Set (Derailleur, C-Brake, Crank), TC4 Titanium, PVD Coated, Hollow Design

The RISK RT105 Titanium Bolt Kit is a complete 49-piece fastener upgrade set designed specifically for the Shimano Ultegra R8000 road groupset. Machined from premium TC4 (Ti-6Al-4V) titanium and finished with durable PVD coating, this kit replaces every visible steel bolt on the rear derailleur, front derailleur, C-brake calipers, and crankset — reducing weight while adding a clean, custom look to your build. Selected bolts feature a hollow / through-drilled design for additional weight savings, and every bolt head carries a laser-engraved RISK logo. The kit arrives neatly organized in a precision-cut foam gift box. Available in Rainbow, Gold, and Black finishes.

— Key Advantages —

• TC4 Titanium (Ti-6Al-4V) — high strength-to-weight ratio, corrosion-resistant, and significantly lighter than stock steel bolts
• 49-piece full coverage — one kit covers the rear derailleur, front derailleur, C-brake calipers (front & rear), and crankset for a complete R8000 groupset
• Hollow / through-drilled design — selected bolts (including pivot nuts, derailleur fixing axle, and cable clamp bolts) feature drilled holes for extra weight reduction without sacrificing strength
• PVD coated finish — durable, scratch-resistant coloring in Rainbow, Gold, and Black; resists chipping and fading
• Laser-engraved RISK logo — clean, consistent branding on every bolt head
• Precision machined threads — exact OEM sizing for a perfect fit; no cross-threading
• Gift-box packaging — precision-cut foam insert keeps all 49 pieces organized and protected; ideal for gifting or resale
• Complete hardware included — brake pad nuts, washers, and spacers are all included for a full replacement

— Compatible Products —

Designed specifically for Shimano Ultegra R8000 road groupset. The kit covers the following components:

Rear Derailleur (R8000):

• Rear derailleur fixing axle (hollow) ×1
• H / L limit screws ×2
• Cable clamp bolt (hollow) ×1
• Jockey wheel bolts (hollow) ×2
• B-tension adjustment screw ×1

Front Derailleur (R8000):

• Clamp fixing bolt ×1
• H / L limit screws ×3
• Cable clamp bolt (hollow) ×1
• Cable adjustment barrel ×1

C-Brake Calipers (Front & Rear, R8000):

• Pivot fixing nuts (hollow) ×2
• Pivot nut washers ×2
• Centering adjustment bolt ×1
• Brake shoe fixing bolts + tapered nuts + A/B washers ×4 sets
• Brake cable fixing bolt ×2
• Brake pad fixing bolts ×4
• Quick release bolts ×2

Crankset (R8000):

• Crank arm fixing bolts ×2
• Single chainring bolts ×4

Total: 49 pieces

— Notes —

• Groupset components are NOT included — this listing is for the titanium bolts only; derailleurs, brakes, cranks, and chainrings in photos are for display only
• Verify original bolt specs before installation — this kit is designed for R8000, but component revisions and production batches may vary. Compare each bolt against your original hardware before installing
• Follow torque values strictly — titanium is softer than steel; over-tightening can strip threads or snap bolts. Always use a torque wrench and refer to the torque guide on the product detail images
• Do NOT force installation — if a bolt does not thread in smoothly, stop and re-check the size and thread pitch. Forced installation may damage both the bolt and the component, and such damage is not covered under warranty
• Use anti-seize compound (recommended) — apply a small amount of copper or titanium anti-seize to threads to prevent galling and seizing, especially on aluminum derailleur and brake bodies
• Use quality hex / Torx keys — worn tools can damage bolt heads; ensure the tool is fully seated before applying force
• Color variation — PVD coating colors may appear slightly different under different lighting conditions; minor color variation is normal and not considered a defect
• Manual measurement: weight and dimensions may vary slightly due to hand-measuring and machining tolerances

— Specifications —