Victor Bosoni won the 2026 Tour Divide on a Factor Sarana

Velo picked the Factor Sarana as the subject of its 2027 Velo Field Test review, published 28 October. Cyclingnews measured it at 9.87kg and found it sluggish in places. Victor Bosoni still won the 2026 Tour Divide in 11 days, 8 hours, 27 minutes on a carbon Factor Ostro Sarana frame. Velo opens by calling it «designed to be an ultra-endurance race bike», which makes distance the test and not the scale.

Velo suggests «endurance gravel» as a better name for the category the Sarana sits in. The frame is built around a leaf-spring rear triangle: chainstays dropped near the bottom bracket, a curved seat tube and deeply dropped seatstays give vertical flex without a mechanical suspension system. Factor claims an «18% reduction in vibration amplitude» and gave the reviewer a figure of 10mm of travel. Velo contrasts this with a mechanical hinge like Cannondale's. Add 57mm tire clearance on a 425mm chainstay, and the spec reads as a bike meant to stay comfortable for days. Factor chief engineer Graham Shrive put it this way: «We weren't trying to make endurance easier. We were trying to make it faster.» Cyclingnews has a complaint too: a 44-tooth stock chainring led to grinding on steep gravel climbs. The RRP is €10,199.

Factor now has a Tour Divide win under its Sarana, which it launched in early May 2026 as its race-endurance bike.

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