Bianchi Infinito 105

The name has been part of Bianchi’s lineup for years: “Infinito” means infinite in Italian, and the bike earns the name through a combination of design decisions aimed at reducing fatigue on long rides. The most significant is the Countervail technology integrated into the carbon seatpost. Countervail is a viscoelastic material developed by North Thin Ply Technology that is embedded into the carbon layup — when road vibration enters the frame, this material absorbs and converts the energy into heat rather than transmitting it to the rider’s hands and body. The result is measurably reduced vibration over long distances without adding weight or softening the structural integrity of the post. It’s the same technology Bianchi has used in their higher-end endurance bikes, carried down to this spec level.

The geometry makes the Infinito’s intent clear. Stack measurements run from 531mm (47cm) to 614.5mm (59cm) — considerably taller than an aero road bike at the same nominal size. Reach figures are correspondingly compact: 370mm to 384mm. The combination produces a more upright position that reduces strain on the lower back and neck during extended efforts. Chainstays measure 420mm across most sizes, slightly longer than a race bike, which adds stability and creates space for wider tires. The 73mm bottom bracket drop is lower than an aero platform, keeping the center of gravity stable when carrying a load or riding mixed terrain.

The tires tell the rest of the story. The Infinito 105 rolls on Pirelli P7 Sport 700x35 — a tire width more commonly…