overview

Unique in its styling, cycling editors have gone so far as to say that the Imperiale defines the aero road category. The frame's aerodynamic lines, orientation and tube shapes were all studied, determined and validated in the wind tunnel. At the same time, our engineers ensured that its ride quality would be worthy of the Wilier Triestina 106-year heritage of performance. In addition to the shaped head tube as well as airfoil down tube, seat tube and seatpost, the Imperiale's chainstays are joined to the underside of its bottom bracket, forming two aerodynamic "splitters". The continuous stays have also been contoured to manage the frame’s final interaction with airflow as they guide it past the spinning rear wheel.

Considered by Road Bike Action magazine to be the bike that defines the “aero road” movement, Wilier Triestina’s Imperiale is much more. It is an ITU and triathlon all-around superbike.

For bike training, travel to events and draft-legal racing, your bike must embody all of the advantages of both a road and tri bike. To develop a bike capable of managing airflow for optimal aerodynamics, we went to the wind tunnel with John Cobb. We combined what we learned in the tunnel with our 105 years of bicycle design and decades of sponsoring the world’s best pro cyclists.

We considered every aspect of frame tubing in order to minimize frontal area while preserving lateral stiffness for efficiency. Validation of our efforts came when the Imperiale garnered Le Cycle’s coveted Bike of the Year award.

The Razor Edge overlapping of top and down tubes at the head tube maximizes aerodynamics while enhancing stability via integration.

Also key to overall frame aerodynamics is the airfoil seatmast which likewise draws on integration to enhance responsiveness. The seatmast transitions into the seat tube to form a continuous, seamless element from saddle to bottom bracket. Hidden by the trailing edge of the exended airfoil, the rear wheel is positioned close to the seat tube via easy-to-use vertical dropouts for a short wheel base and quick accelerations.

The oversized and integrated bottom bracket is another advancement that draws on our road bike designs, while the search for every aerodynamic advantage led us to implement airflow stabilizing fins along the bottom of the Imperiale’s chainstays.

The Imperiale’s aero carbon monocoque fork was developed to provide precision steering, while its rear stays and dropouts further facilitate airflow.

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reviews

Product Rating: (4.00)   # of Ratings: 1   (Only registered customers can rate) (Only registered customers can rate) 1 - Terrible 2 - Bad 3 - OK 4 - Good 5 - Great 0% 50% 100% Sort: New to Old RE-SORT COMMENTS: Helpful to Less Helpful Less Helpful to Helpful New to Old Old to New High to Low Rating Low to High Rating Showing comments 1-1 of 1 1. BikeRadar on 12/13/2011, said: Take a road bike’s geometry, add aerodynamic features half-inched from the time trial world and – hey presto! – you get a fast bike that’s comfortable enough to ride all day. That’s what Wilier have done with the new-for-2010 Imperiale. The aero frame is a stunner, but we wonder how many people are going to spend over four grand on a bike that isn’t loaded with the highest level of componentry. Ride & handling: Fast, punchy bike which could do with some bigger gears The Imperiale is a stirring bike to ride. Lively and responsive, it’s always up for upping the pace. Equipped with an 11-speed Campagnolo Chorus groupset, it provides you with spot-on shifting via the light-action levers and plenty of stopping power and control through the brakes – single pivot at the back, dual pivot up front for extra power. Chorus isn’t quite at the top of the tree in terms of lightweight performance, but it’s still great kit. Although not quite featherweight, at 16.5lb (7.5kg) it’s very light and is a ready, willing and able climber. However, we're amazed that the Imperiale comes only with a compact chainset. Lots of people could easily handle a standard set of gears on the ascents and pick up extra speed from the bigger ratios on the way back down. That would be our biggest criticism – we could have done with a few bigger gears. Sticking with the Italian theme, the wheels are Fulcrum Racing 1s and although, again, they’re not top level, they’re lightweight and pretty stiff. Ritchey cockpit components and a Selle Italia SL saddle complete the package. Frame: Stunning carbon monocoque with aero features The Imperiale is built around a carbon monocoque frame designed with input from John Cobb, the aerodynamics guru who’s worked on many different high quality bikes and components over the years, including Wilier’s Tri-Crono time trial machine. The mid-length head tube is deep, with the trailing edge sharpening to a point where the top tube and down tube meet, and it blends almost seamlessly into the broad-legged carbon fork to manage the airflow smoothly up front. The down tube comes with a ridge on the underside to channel air coming off the front wheel, while the seat tube is cut away to improve the aerodynamics out back. The cinched in chainstays are incredibly deep and get even deeper towards the huge rear dropouts – they’re a whopping 50mm tall back there – while the similarly sculpted seatstays wrap right over the top tube. Rather than having a standard seatpost, you trim the extended seat tube – aero profiled, naturally – to the correct length. Measure twice, cut once in order to avoid an expensive catastrophe, although the Ritchey seat clamp does allow you to fine-tune the height a little and you get loads of fore/aft adjustment for effectively altering the seat angle. That seat tube gets progressively wider along its length to reach across the full width of the oversized bottom bracket, helping to provide a rock-solid platform for applying the power. We’re surprised that Wilier haven’t opted to improve the aerodynamics further by running the cables internally. Was this comment helpful? yes no   (0 people found this comment helpful, 0 did not) Showing comments 1-1 of 1