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Tecnique


The road test

We tried these very special wheels for long time, finding out fully merits and defects. Made with great care, not the side by criticism about processing and finishing. The carbon-rays are very resistant to the stresses of tension and compression, but suffer any side strokes, so the wheels are equipped with bags and it is good to be careful especially in the transport machinery. Although essentially aluminum wheels, it must be dealt with the same delicacy and attention of carbon wheels. We would have preferred, however, that the same technology "TraComp" had also applied to the rear wheel in the side bodice free-wheeling. Frankly there explain why, established the goodness of the new technology, this has not been used in full to the rear wheel, sending "retire" definitely the old spokes and overcoming any technical problems that have, so far, prevented the application. Always with a pair of wheels at the top, we would welcome a series of locks more performance; nothing serious, even in this case, but we believe that these wheels had also earned locks dedicated and lighter, even just a few gram. The magnet integrated on a range of front wheel is very convenient because avoids damage to the beam, but once housed the height should be better secured with adhesive tape or a drop of silicon. For the road test, the more times we happened that the magnet lost its ideal location, and then blocking the cyclocomputer, because of disconnections asphalt and vibration that plan, they plan to move the magnet toward the center of the wheel; enough, however, a round of adhesive tape and everything is resolved, the problem also has occurred only when we have come very disconnected roads. Good ring the closing package pinions Campagnolo, made light alloy. The assembly of the tyre is simple, but these wheels should be enhanced with tubular and roofing with very light and absolutely with inner tubes latex. Mounted everything hand and right now shows the character of these wheels. The lightness ago taken immediately raises the speed, aided by high rigidity that prevents or minimizes the lateral bending of the circle allowing to transmit the power of pedalling on the whole, without dissipating energy; indeed rays carbon and their mounting flange hub between circle and seem truly effective and valid increasing significantly and appreciable rigidity of the wheel. With asphalt sorted these wheels run away fast burning with acceleration due to stiffness, lightness and the quality of bearings, though, to tell the truth, we would have preferred the adoption of ceramic bearings to heighten even more performance. They are very sliding, but not very much, that is we would have expected a glide even better, given the type of wheels, compared to that put into evidence. Examining other words, this single aspect are not above the competition, but are still at the level of the best competitor, it is easy to reach high speeds quickly and keep them for long. But the diameter sustained rays carbon creates an aerodynamic noise, a sensitive ear can perceive already starting from 60 km/h, which increases proportionally with increasing speed. The aerodynamics of these wheels, then, is not perfect. Without doubt the "culprits" are rays carbon because, in fact, the noise is more noticeable on the front wheel on the back, which has only 10 in composite beams. This, however, does not mean that they are slow wheels at high speeds. We tested in comparative tests with these wheels and other competitors on equal terms have always expressed values maximum speed similar, if not better to the other products. Moreover, they do not want to be wheels for pure speed, but wheels for mixed routes, nervous and the ascent. And it is on these roads that the wheels R-Sys enhance demonstrating their absolute goodness. That good behavior, flat with asphalt in order should be noted that disconnections on the stiffness of composite beams and the same structure of a minimum wheel prevents absorption of shocks and vibrations, sending every jolt the frame. They are not comfortable wheels, and then, it is better for this are properly a pair of tubes that can better absorb the shocks of the road, returning a minimum of comfort. On the other hand, if you want a really rigid wheel should also put a lower capacity to absorb vibration asphalt, however with two tubular quality you can "smooth" this critical aspect. Excellent, however, the behavior in the presence of lateral wind, even strong, where these wheels approaching greatly to the behaviour of a wheel round-ray is normal and far better wheels with spokes aluminum plates. But after good behavior in raises and ondulating paths, we as a hard climb where these wheels are still winning show, allowing a fast pace, a great facility in reviving the action outside the curves or out set. Going downhill appear another time the aerodynamic rustle, but the speed edge does not seem affected, at least not so obvious as in our benchmark tests these wheels were always much faster in terms of maximum cast, although only a few tenths of km/h. The downhill, however, if you want to be fast, be "attacked" making the most of the positive aspects of these wheels; exploiting their rigidity and lightness can revive the action outside the curve quickly reaching high speeds, conversely can be reached Maximum speed less than competitors, but the difference is limited to a maximum of 2 km/h. A conduct "aggressive", and then allows you to be very fast downhill, especially if it is a technical descent, with tight curves and high speed held up for a few moments. Here these wheels still return to theirs, with outstanding performance. The runway braking corrected, then, allows a perfect and safe braking extolling the skills of braking and helping to make even more winning these wheels in the most daring and techniques. Excellent Finally, the decision to differentiate between front wheels (lower and narrow) and rear (highest and off): especially in the wet you can have a bigger footprint on the ground in the rear tyre output curve and the profile of circle earlier ease placement cornering, making them very fast.

Conclusions

The Mavic R-Sys are dimostrated good wheels, maybe the best ever in the field of aluminium circles. The cure is obvious constructive, as well as technological innovation. We would have preferred that Mavic "dare" a little more marrying entirely new technology and taking the locks even more refined than, however excellent, already adopted. Particulars and notes from those seeking the best ever. In practice these wheels have exhibited obvious qualities of lightness and stiffness, with a rolling, that unless there is the absolute top is excellent. A sign that the new Mavic technology  is not just marketing, but healthy substance. Although many trail miles, including roads in order not perfect, we have not had incidents and even though it is early to make a definitive judgement, we do not believe that these wheels and spokes in particular have an "Achilles' heel" reliability. Besides studies and tests carried out by long Mavic first put into production, as well as his long experience in the processing and production of composite wheels, bring away from any doubt the reliability of these wheels. They exalt uphill, where there are slight and fast, and mixed routes ondulating, where allow changes very fast rhythm and acceleration. Going downhill can be quickly, but we should be able to exploit with continual raises out of the curves. Good behaviour during braking, while little is the comfort because of their rigidity of the wheels.

The price

The suggested price to the public (including VAT) is Euro 1.100,00 are among the best aluminum wheels currently on the market, with the only rays carbon. The benefits are expressed in absolute good and justify the price of a pair of wheels at the time only.
 

Is suitable for

Athlete: are wheels on top, suitable for the toughest climbs and fast paths. Thanks to circle aluminium not afraid of bad weather conditions, ensuring an excellent braking.
Cycloturist-GF: comfort is not the best value of these wheels, but the low weight and performance expressed will be happy cyclists most sports, with a good tube could be more like gf more attentive to the comfort.

Positive aspects
Stiffness
Low weight
Fluency
Quality construction
Ability to adopt or indifferently tubular tyres

Negative Aspects
Poor comfort on disconnected
Aerodynamic rustle at high speed

For further information:

Mavic
Metz Tessy
74996 Annency Cedex 9
Web site: www.mavic.com





Luca Salvatelli

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