Factor Ostro Gravel Team Amani

Factor Ostro Gravel Team Amani

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Regular price $6,711.00 USD
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Speed is your goal. Every ride, whatever the surface, faster is what counts, and this is the gravel bike you’ve been waiting for. The OSTRO Gravel takes its ‘win everywhere’ mentality from its road racer stablemate, the OSTRO VAM, and is likewise developed to dominate its category with incredible aero, superior handling, high stiffness and low weight. With a tire capacity of 45mm, it’s ready to go anywhere, fast.

Gravel racing is fast and aero really matters, but it isn’t as fast as road racing so the requirements are different. The OSTRO Gravel frame is carefully optimized for the speeds at which you’ll be riding. Our team used a ‘zoned aero’ strategy which focused the front of the bike on aerodynamics because it meets clean, or freestream, air flow, and the rear of the bike on lightness, where the air flow is too chaotic and ride quality is the priority. In particular, a lot of time was spent on the head tube, where an all-new tube shape unlocked significant drag reductions by manipulating the ‘laminar separation bubble’ that occurs near the front of airfoils at lower speeds. The tech is rooted in aerospace but all you really need to know is that the OSTRO Gravel will get you to your finish line faster, and by minutes, not seconds.

The OSTRO Gravel offers a generous 45mm of tire clearance in both 700c and 650b, giving you the options and possibilities to tackle the toughest routes and events. This is a real figure, with 4mm of clearance either side in accordance with ISO standards, so the OSTRO Gravel is super-capable in muddy conditions. That was proven at the queen of gravel races, the 2022 Unbound 200, where heavy rain made the course brutal and the OSTRO Gravel was ridden to a top-10 finish.

Many all-road and gravel bikes struggle to deliver steering that’s effective and confident both on- and off-road, typically ending up with an unsatisfying compromise of soft handling and modest tire capacity. The OSTRO Gravel breaks that mold by making the tire size an integral part of the geometry. Wider tires also have a greater outside diameter (or rolling circumference) which increases the true, or ‘resulting’ trail of a bike; narrower tires have a smaller outside diameter which reduces resulting trail. These outcomes match the handling response you want when riding those respective tires, so we designed with resulting trail as the priority. We selected a trail value on the slightly faster handling side for gravel use, given the bike’s racing focus, while prioritizing head tube angle when selecting our fork rake. This leads to a fast handling gravel bike on 43mm tires and an equally satisfying and precise all-road machine on 32s, with no low-speed wheel flop.

At only 900g, the OSTRO Gravel is one of the lightest gravel frames available. We have used the very best materials to reach such a low weight for an aero frame, ensuring that lightness is matched by sensational ride quality and the immense durability you want for season after season of epic gravel racing.

In line with rider demand and facilitating a reduction in aero drag and weight, the OSTRO Gravel is built exclusively for electronic shifting groupsets and disc brakes. Cable and hose routing is fully internal.

Key Specs

Frame TeXtreme®, Toray®, Nippon Graphite® Pitch-Based Fiber
Fork OSTRO Wide Stance Fork
Barstem Black Inc Integrated Aero Barstem
Headset CeramicSpeed SLT 1.5" bearings
Max Tire Clearance 45mm
Bottom Bracket CeramicSpeed Bearings

 

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