Critique de la roue Mercury M5

Au cours des deux dernières années, les roues à larges jantes ont sans aucun doute été l'un des sujets les plus populaires dans le monde de l'équipement de triathlon. Zipp et HED ont été les deux premiers participants au jeu du large bord, et je pense qu'il est juste de dire que Zipp a mené la charge en termes d'éducation des consommateurs sur ce type de technologie et ce qu'elle a à offrir. Mais au cours des deux dernières années, la quasi-totalité de l’industrie a décidé de surfer sur la vague lancée par ces deux sociétés. Bontrager, ENVE, Flo Cycling et d'autres vendent déjà des jantes larges, certaines entreprises ont commencé à développer des prototypes à larges jantes, et vous pouvez parier que presque tout le monde envisage au moins de profiter de la demande du marché qui s'est développée. .

Mais dans cette course aux armements aérodynamiques, les questions de poids ont été largement oubliées. ENVE, dont les jantes étroites étaient auparavant si populaires en partie en raison de leur faible poids, le meilleur de leur catégorie, a fini par produire des jantes larges qui étaient en réalité plus lourdes que leurs concurrents. Les coureurs qui veulent du large et de la légèreté ont été laissés pour compte. Jusqu'à maintenant.

Entrez Mercure

C’est là que Mercury Cycling entre en scène. J'ai eu un aperçu de leur gamme chez Interbike et j'ai eu l'occasion de revoir un jeu de leurs roues M5 au cours des derniers mois. Malheureusement, je n'ai pas parcouru autant de kilomètres que j'aurais souhaité, car le temps ici était plutôt maussade. Mais j'ai néanmoins pas mal de choses à dire sur ces roues, et je pense qu'elles occupent une place importante dans le nouveau panthéon des cerceaux. Et de plus, ce ne sont pas de simples concepts : le produit de Mercury est disponible dès maintenant.

L'ensemble d'examen que j'avais comportait les jantes tubulaires M5 de Mercury, qui mesurent 55 mm de profondeur et 25 mm de largeur. Ils étaient associés à un ensemble éblouissant de hubset Nikki-Monica constructible par l'utilisateur de Dash. L'ensemble des roues pesait 1107 g très svelte. C'est environ 150 g de moins que le poids de la concurrence pour des jantes de largeur et de profondeur similaires. Si vous obtenez les roues pré-construites de Dash avec leur moyeu le plus léger, le Mira-Veronica, vous pouvez obtenir un poids aussi bas que 1 000 g en fonction de votre nombre de rayons. C'est incroyable, surtout à cette profondeur. Mercury fabrique également une jante de 90 mm appelée M9, qui serait certainement une meilleure roue arrière pour le jour de la course. Vous pouvez également l'utiliser comme façade, même si personnellement, j'évite autant de profondeur à l'avant, à moins que vous ne vous attendiez à un vent proche de zéro.

Alors, quelles sont ces choses ? Quel type d’entreprise est Mercury et quels sont ses objectifs ? Eh bien, pour être tout à fait honnête, les jantes n’ont pas été conçues en soufflerie. Personne ne s’est penché sur cette forme de jante dans un logiciel d’analyse CFD. Mais Mercure ne prétend pas le contraire. Au contraire, ce que Mercury a fait, c'est prendre un concept de design populaire et le marier à une construction ultra légère.

Le résultat est une paire de roues qui plaira aux poids lourds qui souhaitent une jante large. Ils sont fondamentalement à l'opposé des offres de Flo Cycling, qui tentent d'offrir une aérodynamique de pointe au prix d'un poids élevé. À mon avis, les deux catégories ont une place très réelle et très légitime sur le marché, car différents pilotes ont des priorités et des préférences différentes. Mercury a profité d'une grande lacune dans le domaine, pour ainsi dire, et a livré un produit qui répond aux objectifs qu'il s'était fixés.

Lancez-vous pour lire mes impressions sur ce joli ensemble de cerceaux.


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