Cut up to 103 grams from your Colnago V5RS with a direct-fit carbon seatpost made for lightweight performance.
The Alpitude Tonale replaces the standard V5RS seatpost with a significantly lighter, hand-finished carbon upgrade. Its model-specific aero profile fits the Colnago V5RS cleanly, while the 0 mm offset places the saddle directly above the post for riders who need a more forward position.
Each post is produced using high-pressure moulding with an internal silicone bladder. This creates a smooth, consistent finish both outside and inside the tube, with carefully controlled carbon placement and no unnecessary material.
- ⚖️ From just 87 g: More than 100 g lighter than Colnago's published 190 g standard seatpost weight, depending on length and finish.
- 🎯 Made specifically for the V5RS: A direct-fit aero profile with no adaptor required.
- 📏 Four lengths: Choose 250, 300, 350 or 400mm to suit your frame size and saddle height.
- 🛡️ Carbon-rail friendly: The wider saddle-clamp contact area spreads load across the rails and reduces localised stress.
Built for the Colnago V5RS
The V5RS is Colnago's lightest race frame, but its standard seatpost is still an obvious place to remove weight. The Tonale preserves the clean aero integration of the bike while reducing the post weight to as little as 87g.
This version is available only with 0mm offset. It is ideal for riders whose bike fit requires a straight post, or anyone replacing Colnago's 0mm V5RS post with a lighter alternative.
Technical specifications
| Compatibility | Colnago V5RS only |
|---|---|
| Offset | 0 mm |
| Lengths | 250, 300, 350 and 400 mm |
| Published weights | 87 g at 250 mm 97 g at 300 mm 107 g at 350 mm 118 g at 400 mm |
| Maximum rider weight | 100 kg |
| Maximum saddle-clamp torque | 4 Nm |
| Maximum frame-clamp torque | 5 Nm |
Frequently asked questions
Will this fit the Colnago V4RS or C68?
No. This Tonale is shaped specifically for the Colnago V5RS. It is not compatible with the V4RS, C68 or other Colnago frames.
Is a setback version available?
No. The Alpitude Tonale for the V5RS is available only with 0 mm offset. Do not order it if your bike fit requires the standard 15 mm setback position.
How much weight will it save?
Colnago publishes a weight of 190 g for the standard V5RS seatpost. Based on Alpitude's 3K reference weights, the Tonale saves approximately 72 to 103 g depending on the length selected.
Which length should I choose?
Choose a length that provides your required saddle height while maintaining the minimum insertion specified for the post and frame. If you are unsure, measure the usable length of your existing V5RS post before ordering.
Can it be used with carbon saddle rails?
Yes. The clamp has a wider contact area specifically designed to distribute pressure across carbon saddle rails. Always observe the 4 Nm maximum saddle-clamp torque and the saddle manufacturer's requirements.
What is the rider weight limit?
The maximum rider weight is 100 kg.
Choose your length and carbon finish above to build a lighter Colnago V5RS.