Prologo Scratch M5 140 Nack Carbon Saddle in Black
Prologo Scratch M5 140 Nack — Lightweight Carbon Saddle for Road & Gravel
The Prologo Scratch M5 Nack is a performance saddle built around Prologo's 4.0 technology platform — a complete rethink of size, shape, and ergonomics. At just 155g with a carbon fibre shell (Nack), it's engineered for riders who demand both weight savings and all-day comfort. The T-Shape design and 250 x 140mm dimensions make it genuinely unisex, fitting a wide range of riders without compromise.
Key Specifications
- Model: Scratch M5 140 Nack
- Shell: Carbon fibre (Nack)
- Dimensions: 250 x 140mm
- Weight: 155g
- Fit: Unisex (T-Shape design)
- Colour: Black
Technology
- Nack carbon shell — stiff, lightweight base that transfers power efficiently while dampening road vibration
- MSS (Multi Section System) — developed in partnership with the Politecnico di Milano, the foam is divided into 5 independent zones that flex and respond to your natural pedalling movement
- T-Shape design — wider at the rear for lumbar support and pressure distribution, narrower at the nose for freedom of movement in the saddle
- Round Shape profile — promotes stability and even pressure distribution across a greater surface area
Who Is It For?
The Scratch M5 Nack suits road, gravel, and endurance riders looking for a lightweight carbon saddle with genuine ergonomic credentials. The unisex T-Shape geometry makes it a strong choice for riders who struggle to find a saddle that balances width, support, and freedom of movement.
Product Information
Product Information
Shipping & Returns
Shipping & Returns


Prologo Scratch M5 140 Nack Carbon Saddle in Black
Prologo Scratch M5 140 Nack Carbon Saddle in Black
Prologo Scratch M5 140 Nack — Lightweight Carbon Saddle for Road & Gravel
The Prologo Scratch M5 Nack is a performance saddle built around Prologo's 4.0 technology platform — a complete rethink of size, shape, and ergonomics. At just 155g with a carbon fibre shell (Nack), it's engineered for riders who demand both weight savings and all-day comfort. The T-Shape design and 250 x 140mm dimensions make it genuinely unisex, fitting a wide range of riders without compromise.
Key Specifications
- Model: Scratch M5 140 Nack
- Shell: Carbon fibre (Nack)
- Dimensions: 250 x 140mm
- Weight: 155g
- Fit: Unisex (T-Shape design)
- Colour: Black
Technology
- Nack carbon shell — stiff, lightweight base that transfers power efficiently while dampening road vibration
- MSS (Multi Section System) — developed in partnership with the Politecnico di Milano, the foam is divided into 5 independent zones that flex and respond to your natural pedalling movement
- T-Shape design — wider at the rear for lumbar support and pressure distribution, narrower at the nose for freedom of movement in the saddle
- Round Shape profile — promotes stability and even pressure distribution across a greater surface area
Who Is It For?
The Scratch M5 Nack suits road, gravel, and endurance riders looking for a lightweight carbon saddle with genuine ergonomic credentials. The unisex T-Shape geometry makes it a strong choice for riders who struggle to find a saddle that balances width, support, and freedom of movement.
Original: $262.99
-65%$262.99
$92.05Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Prologo Scratch M5 140 Nack — Lightweight Carbon Saddle for Road & Gravel
The Prologo Scratch M5 Nack is a performance saddle built around Prologo's 4.0 technology platform — a complete rethink of size, shape, and ergonomics. At just 155g with a carbon fibre shell (Nack), it's engineered for riders who demand both weight savings and all-day comfort. The T-Shape design and 250 x 140mm dimensions make it genuinely unisex, fitting a wide range of riders without compromise.
Key Specifications
- Model: Scratch M5 140 Nack
- Shell: Carbon fibre (Nack)
- Dimensions: 250 x 140mm
- Weight: 155g
- Fit: Unisex (T-Shape design)
- Colour: Black
Technology
- Nack carbon shell — stiff, lightweight base that transfers power efficiently while dampening road vibration
- MSS (Multi Section System) — developed in partnership with the Politecnico di Milano, the foam is divided into 5 independent zones that flex and respond to your natural pedalling movement
- T-Shape design — wider at the rear for lumbar support and pressure distribution, narrower at the nose for freedom of movement in the saddle
- Round Shape profile — promotes stability and even pressure distribution across a greater surface area
Who Is It For?
The Scratch M5 Nack suits road, gravel, and endurance riders looking for a lightweight carbon saddle with genuine ergonomic credentials. The unisex T-Shape geometry makes it a strong choice for riders who struggle to find a saddle that balances width, support, and freedom of movement.











