Factor OSTRO VAM L39ION Edition
Inspired by a city; designed to inspire
Marking Factor’s collaboration with Justin Williams and his L39ION of Los Angeles cycling team, the OSTRO VAM L39ION Edition uses a graphic concept that represents the Williams brothers’ connection to LA and its transit system. With the map of the bus lines prominent on the head tube and the high-viz lettering that practically glows in the dark for a twilight crit, this is an OSTRO VAM ready to take on the contact sport that is criterium racing.
Finding inspiration in LA
Justin and Cory Williams grew up in South Central Los Angeles on 39th street, a neighbourhood not famous for its cycling history. That didn’t stop the Williams brothers from finding, falling in love, and transforming road cycling in the US. But their LA roots inspired Justin to create a racing environment that would attract and inform a whole new generation of American crit racers. Using a map of the LA transit system, which is integral to connecting the many different pockets of the ultra-urban city, mirrors the role Williams has in connecting the riders he inspires to the vibrant L39ION of Los Angeles cycling community. It’s a safe space to go fast, have fun, and be yourself.
A frame calculated for crits
Super aero, incredibly stiff and responsive, the OSTRO VAM provides the ultimate performance for criterium racing scenarios. Utilizing our premium carbon frame, this bike excels at accelerating off the mark and snappy handling, providing an unparalleled riding experience. The Black Inc Integrated Aero Barstem enhances its aero profile, while the CeramicSpeed SLT Bearings ensure smooth and effortless maintenance. Every aspect of the bike is designed to optimize speed and agility, making it ideal for competitive racing.
Available for special order
Combining a subdued color palette of raw carbon and black paintwork with super bright accent colors and chrome, the OSTRO VAM L39ION Edition uses a color legend to highlight the different LA neighborhoods on the transit map that are connected by the various transit lines so important to commuters in the community. It’s an effect that speaks to the L39ION roots while remaining universally cool and imaginative. Available for special order, the limited availability adds to its allure, ensuring that each owner possesses a unique piece of cycling iconography.
FASTER. EVER FASTER.
Everything we know about blazingly fast bikes was merely the starting point. Using the latest computer modelling tools, the new OSTRO VAM unlocks aero performance gains that had been unthinkable.
Compared to the outgoing model, after 40km, the new OSTRO VAM is a dot in the distance. Compared to its rivals, it’s way out of sight. We focused on refining the front of the bike, where we could influence the airflow the most. Using a Rapid Iterative Design process, we ran simulations on dozens of head tube profiles, considering every transition and surface on the frameset. The result is a true airfoil-type profile along the waterline of the frame. Further wind tunnel testing verified that the new OSTRO VAM outperforms the market.
MASTERS OF CARBON
The new OSTRO VAM is a sub-7kg aero weapon, so your crit bike is also your mountainous grand fondo bike and they’re both awesome. This lightness also means that the pros can use their most aero option more of the time (and for big mountain stages with summit finishes, we make the feathery and fast O2 VAM). What’s more, the uprated stiffness level is mighty, unflinching in the face of even WorldTour watt bombs. Aerodynamics, lightness and stiffness used to be sworn enemies, impossible to bring together. Now we have more of all three in one bike than ever and it’s thanks to our engineers’ tireless work to iterate the carbon fiber lay-up, our investment in top grade materials, and owning our factory which lets us do things the hard way in pursuit of the perfect ride.
CONFIDENCE BUILT IN
We can measure and test many things, but not the level of confidence that a bike gives you. It’s a feeling. Building it into a bike is where art meets science, and where our design team’s decades of engineering combine with their decades of riding. The perfectly balanced handling geometry of the new OSTRO VAM – combining cat-like agility with unflappable high-speed stability and on-rails cornering – is carried over from its predecessor, which was loved by pros, customers, and reviewers alike. Greater compliance adds to both the feeling of confidence and comfort over long rides.
NUMBERS DON'T LIE
Now 250 grams lighter and 7 watts quicker with optimized Black Inc 48|58 wheels, it redefines responsive riding with unparalleled aerodynamic efficiency. Journey through our OSTRO VAM Launchbook as we guide you using the latest computer modelling tools to unlock aero performance gains that had been unthinkable.
COLOR OPTIONS FOR EVERY RIDER
Explore our selection of colors designed to complement your ride and reflect your personal style. Whether you prefer classic elegance or a more striking statement, our range offers a palette to suit every taste.
And it's not just about the bike – we offer customizable wheel decal choices too, allowing you to harmonize or contrast your wheels with your frame.
ENGINEERED FOR SPEED
The goal was to create the lightest aero-oriented bike in the pro peloton. The OSTRO VAM is a bike that can be competitive on any terrain. It is ready to win sprints, conquer cobbled classics, and summit the climbs with the best.
SUPER-THIN AERO SEATPOST
The seatpost is a slender 15mm in width, capitalizing on the latest UCI rules. Its profile is the result of an intensive study of its interaction with the chaotic airflow from the rider’s legs and a tireless R&D process. First, incremental iterations were sim tested, then rapid prototypes of the best shapes were wind tunnel tested to arrive at the best performing. The thin new seatpost is made possible by relocating the Shimano Di2 battery housing inside the seat-tube and mounted from behind the bottom bracket. This has the added benefit of avoiding seatpost removal for battery access, which reduces the risk mis-adjustment leading to incorrect height, slippage or damage from over-tightening.
AERO INTEGRATED BOTTLE CAGES
The OSTRO VAM comes with innovative bottle cages which are location-specific and integrated into the frame’s aerodynamics. The downtube cage acts to direct airflow from the downtube over a bottle, neutralising the drag of adding a bottle to the bike. The seat-tube cage works to reattach airflow to the seat-tube and it’s so effective that the bike is faster with the cage mounted and no bottle than with no cage at all, making it perfect for the finale of pro races when the second bottle has been discarded.
ULTRALIGHT SEATPOST CLAMP
The new pusher-type seatpost clamp is repositioned at the rear of the seat-tube where it distributes force over a large area to give a very secure fixation with a low torque, allowing a very lightweight clamp, a dramatic reduction in seat-tube width. This design has now moved the battery housing into the bottom bracket being more accessible and convenient.
BLACK INC INTEGRATED AERO BARSTEM
The barstem is the benchmark aero cockpit, combining leading aerodynamics with refined ergonomics and a feathery weight. Its highly developed shape, with drops flared by 30mm, boosts control and significantly reduces the drag of the combined bike and ride.
CERAMICSPEED T47A BB
The T47 standard for threaded bottom brackets ensures a secure fit, easy maintenance, and contributes to exceptional power transfer. Fast-spinning Ceramicspeed bearings ensure ultimate efficiency.
REVISED RIDER POSITIONING
In response to analysis of customer and pro athlete position data, two key changes have been made. First, a 45cm frame has been added to the range. Second, the seat-tube angle is 0.5º steeper.
SPECS
| FRAME | TeXtreme®, Toray®, Nippon Graphite® Pitch-Based Fiber |
| FORK | OSTRO Wide Stance Fork |
| SEATPOST | 0 and 20mm setback available |
| BARSTEM | Black Inc Integrated Aero Barstem Reach 80mm, drop 120mm. Multiple stem lengths and bar widths available. |
| HEADSET | CeramicSpeed SLT 1-1/8″ and 1-3/8″ bearings |
| HEAD TUBE DIAMETER | 1-1/8″ upper and 1-3/8″ lower |
| SADDLE RAIL CLAMPS | 7x7 and 7x9 |
| BOTTOM BRACKET | CeramicSpeed T47A Aluminium cups / CeramicSpeed bearings available for DUB, 24mm, or Ultra-Torque |
| CABLE ROUTING | Internal |
| COMPATIBLE COMPONENTS | Electronic |
| BRAKE TYPE | Disc |
| MAX ROTOR SIZE | 160mm front & rear |
| MAX CHAINRING | 54-tooth |
| FRONT AXLE | 12 x 100mm thru-axle |
| REAR AXLE | 12 x 142mm thru-axle |
| WHEELSET | Black Inc 48|58 |
| WHEEL SIZE | 700c |
| MAX TIRE CLEARANCE | 32mm Measured |
| MANUFACTURER WARRANTY | Limited Lifetime Warranty |
GEOMETRY
| SIZE | 45 | 49 | 52 | 54 | 56 | 58 | 61 | ||
|---|---|---|---|---|---|---|---|---|---|
| A STACK | 502 | 503 | 523 | 542 | 565 | 587 | 611 | ||
| B REACH | 360 | 370 | 376 | 384 | 392 | 401 | 409 | ||
| C HEAD TUBE ANGLE | 71.1° | 71.1° | 72.5° | 72.5° | 73.3° | 73.3° | 73.3° | ||
| D BB DROP | 72 | 72 | 72 | 70 | 70 | 70 | 70 | ||
| E TRAIL | 58 | 58 | 58 | 58 | 58.6 | 58.6 | 58.6 | ||
| F FORK RAKE/OFFSET | 57 | 53 | 48 | 48 | 43 | 43 | 43 | ||
| G CHAINSTAY LENGTH | 405 | 405 | 405 | 405 | 405 | 408 | 410 | ||
| H WHEELBASE | 970 | 969 | 971 | 985 | 987 | 1006 | 1022 | ||
| I BIKE STANDOVER HEIGHT | 726 | 737 | 762 | 781 | 804 | 817 | 840 | ||
| J SEAT TUBE LENGTH | 405 | 425 | 465 | 495 | 525 | 545 | 570 | ||
| K SEAT TUBE ANGLE | 75.5° | 74.5° | 74° | 74° | 73.5° | 73.5° | 73.5° |