Proxim is Prologo's line of saddles for e-bikes/all mountain, developed in collaboration with Polyfactory, the research laboratory of the Milan Polytechnic. Proxim W850 introduces a revolutionary new technology, the Multi-Sector System: three different individual zones mapped and separated from each other along the saddle, each made up of different interactive foams. These zones work independently of each other and adapt to all positions that the cyclist can assume. Designed as a unisex saddle, it is equally suitable for men and women.

- P.A.S system: Ergonomic channel in the saddle shell minimizes peak loads in the sensitive pelvis and crotch area
- Nack Rail: Carbon fiber frame which consists of a material combination of carbon fibers, polimeric plastic and aluminum wires. The result is a balanced structure with high resistance
- Seat cover: microfibre
- Length: 240 mm
- Width: 143 mm
- Height: 60 mm
- Fork diameter: oval 7x9, 3 mm
- Maximum tightening torque allowed: 9 Nm
- Finish: eco-leather
- Weight 160gr