Product Description

Upgrade the finishing details of your COLNAGO Y1RS or V5RS with a precision-made titanium seatpost bolt kit from S-PARTS.

Designed specifically for the original COLNAGO saddle clamp systems, these replacement fasteners are engineered to match the clean lines and distinctive design of the Y1RS and V5RS. Each kit includes the corresponding titanium bolts and clamp nuts required for the selected seatpost configuration.

Made from Grade 5 Titanium (Ti-6Al-4V), the hardware offers an excellent combination of low weight, strength and corrosion resistance. Precision CNC machining and carefully finished surfaces give the bolts a clean, premium appearance that complements the high-end character of your COLNAGO.

Designed for COLNAGO Y1RS & V5RS

Choose the correct configuration for your seatpost:

Y1RS Saddle Clamp Bolt Kit

• 2 × stepped seatpost clamp bolts
• 1 × spherical clamp nut
• 1 × cylindrical clamp nut
• Weight: 12.0 g/set
• Installation tool: 5 mm Allen key

V5 RS Straight-Head Seatpost Bolt Kit

• 2 × stepped seatpost clamp bolts
• 2 × spherical clamp nuts
• Weight: 11.7 g/set
• Installation tool: 5 mm Allen key

V5 RS Setback Seatpost Bolt Kit

• 2 × stepped seatpost clamp bolts
• 1 × spherical clamp nut
• Weight: 10.1 g/set
• Installation tool: 5 mm Allen key

Grade 5 Titanium Construction

S-PARTS uses Grade 5 Titanium (Ti-6Al-4V) for a lightweight and corrosion-resistant upgrade over standard steel hardware. Titanium is well suited to premium bicycle components where reducing unnecessary weight while maintaining reliable mechanical performance matters.

The precision-machined surfaces and carefully finished edges are designed to integrate naturally with the aerodynamic lines of the COLNAGO Y1RS and the refined appearance of the V5RS.

Finish Options

Choose from a range of finishes to match your bike and personal style:

Gold · Rainbow · Titanium · Black · Blue · Green · Purple · Candy · Indigo

From a subtle titanium finish to a high-contrast anodized color, these seatpost bolts let you add a small but distinctive detail without changing the character of your bike.

A Small Upgrade with a Premium Finish

The seatpost clamp may be a small part of the bike, but it is one of the details that can make a premium build feel complete. S-PARTS titanium hardware combines lightweight Grade 5 titanium construction with precision machining and multiple finish options for a clean, purpose-built upgrade to your COLNAGO Y1RS or V5RS.

Important: Please select the correct bolt configuration for your specific COLNAGO seatpost before ordering. The Y1RS, V5 RS straight-head and V5 RS setback versions use different clamp hardware.