Colnago seatpost expander for V3/V4RS/C68

Designed specifically for high-end Colnago frames, the Colnago seatpost expander guarantees a reliable, precise and durable clamp. Essential for securing the seatpost, it ensures even pressure distribution inside the tube, thereby protecting the carbon frame.

Developed to integrate perfectly with the V3, V4RS and C68 models, this expander meets the Italian brand’s strict tolerances. Its robust design offers excellent stability, even under heavy loads. Ideal as a replacement or for a new build, it is a genuine Colnago component, guaranteeing compatibility and reliability.

A discreet yet essential accessory for preserving the performance and longevity of your frame.

Technical specifications

- Use: Road
- Bike compatibility: Colnago V3, V4RS, C68
- Contents: Expander + clamping screw
- Colour: Black
- Reference: 3MRS.V3S.0SE.00BK
- Brand: Colnago