.-.-.-.-.-.-.-.-.
LIQUEN Asociación de Promoción Turística de Las Ubiñas - La Mesa en colaboración con Montaña Montaña, G.M. Fariñentu y Boomerang Eventos, presenta
III Trail, II Km Vertical del Macizo de Ubiña y el I Ultra Trail "Güeyos del Diablu"
Como en ediciones anteriores el Trail "Ruta de las Brañas, recorrerá maravillosos parajes, con sus 21 Km y sus 4.100 metros de desnivel acumulado.
El Km Vertical es una cronometrada con salida en Tuiza de Arriba y llegada al Picu Fariñentu con un desnivel positivo de 938 metros. Esta carrera está incluida en Copa de Asturias de Km Verticales de FEMPA.
El Ultra Trail tendrá un recorrido de 62 Km aproximadamente y un desnivel acumulado de más de 10.000 metros, será una prueba por parejas en semiautosuficiencia incluida en Copa de Asturias de Carreras de Larga Distancia de FEMPA.
Os animamos a inscribiros y que disfrutéis de estas tres grandes carreras que se celebran el 16 y 17 de agosto (Km Vertical y Trail) y 13 de Septiembre (Ultra Trail).
Apertura de inscripciones Km y Trail:
11 de mayo a las 22:00h solo para federados
12 de mayo a las 22:00h para todos.
Las inscripciones del Ultra Trail ya están abiertas.
¡¡NO OS LO PODÉIS PERDER!!
¡¡PLAZAS LIMITADAS!!
Más info: http://www.ubiña.com
Our contact information is:
Tfno: 984 03 90 30
http://www.boomerangeventos.es
Con motivo de la entrada en vigor de la Ley 34/2002, de 11 de julio, de Servicios de la Sociedad de la Información y de Comercio Electrónico, le informamos que puede revocar en cualquier momento, de manera sencilla y gratuita, el consentimiento para la recepción de esta información enviando un email a bajanews@youevent.org
If you do not wish to receive information from YouEvent anymore, you may revoke your agreement to receive it anytime, by simply send an eamil to bajanews@youevent.org
YouEvent
Culmin Innovación y Soluciones, S.L. Zuloaga, 4 - Manzanares el Real - 28410 - Madrid (Spain)
.-.-.-.-.-.-.
Fluent wheel may not be shocking, but it is shock-absorbing
By Ben Coxworth
May 7, 2014
SoftWheel's Fluent wheel replaces spokes with shocks
Image Gallery (4 images)
After breaking his pelvis six years ago, Israeli farmer Gilad Wolf invented a new suspension system for wheelchairs that incorporates shock absorbers into the wheels. He's now a board member of SoftWheel, a Tel Aviv-based company that refined his creation into a product known as the Acrobat wheel. Although the Acrobat was unveiled in 2012, this year SoftWheel announced something new – a bicycle wheel that uses the same technology, known as the Fluent wheel.
The shocks remain rigid when going over smooth surfaces, but compress when the wheel takes...SoftWheel states that the Fluent wheel will be compatible with a wide variety of existing ...A wheelchair equipped with SoftWheel's Acrobat wheels
Both the Acrobat and Fluent work in exactly the same fashion.
Three cylindrical shock absorbers radiate out from the hub to the rim, taking the place of spokes. They remain rigid when going over smooth surfaces, but compress when the wheel takes particularly big hits. This means that the hub temporarily moves downward within the wheel, that movement absorbing the energy that would otherwise be transmitted through to the rider.
The shocks remain rigid when going over smooth surfaces, but compress when the wheel takes...
Both wheels also differ from many regular suspension systems in that they react not only to obstacles that are passing directly beneath the bike, but also to those that it's meeting head-on, such as curbs.
According to a report in Wired, SoftWheel plans to start selling the Acrobat wheel in the fourth quarter of this year, priced at approximately US$2,000 a pair. There's currently no word on availability of the Fluent, although the company states that it will be compatible with a wide variety of existing bikes. It can be seen in use in the video below.
Many readers will no doubt be reminded of Loopwheels, a similar product that uses three looped carbon composite springs instead of cylinder-and-stanchion-type shocks. All you mechanical engineers out there, please weigh in with your thoughts – which system ought to work better?
Source: SoftWheel
http://www.softwheel.co.il/
via Wired
http://www.wired.com/2014/05/an-amazing-shock-absorbing-wheel-for-bikes-and-wheelchairs/#slide-id-819341
http://www.gizmag.com/softwheel-acrobat-fluent-suspension-wheels/31955/
.-.-.-.-.-
Synchrobox takes the guesswork out of shifting bicycle gears
By Ben Coxworth
May 7, 2014
The Synchrobox has an integrated front derailleur, and mounts at the bottom of the seat tube
Judging by the increasing popularity of 1x11 drivetrains and hub transmissions, a lot of cyclists are evidently getting tired of shifting between multiple chainrings. Indeed, it can get confusing trying to figure out if your gearing needs are best met by shifting to a bigger ring in front, a smaller sprocket in back, or what. IXOW's new Synchrobox is designed to address that conundrum – it uses one shifter to automatically adjust both derailleurs, in order to attain the rider's desired gear ratio.
The grip-shift style Synchrobox shifter
The shifter takes the form of a handlebar grip, that users simply twist forward or backward to shift gears up or down. Two cables run from it down to the mechanical synchronization box itself, which incorporates a proprietary front derailleur. That derailleur shifts the chain between the chainrings, while a third cable runs from the box back to the existing rear derailleur, shifting it accordingly.
Depending on the rider-requested gearing, "commands" from the shifter may result in an adjustment of both derailleurs, or they may simply be relayed straight on through to the rear derailleur, with the front one staying put.
The system will only select chainring/sprocket combos that don't result in chain crossing, a situation in which the chain is stressed by being placed at too much of a lateral angle (such as if it were running from the outermost chainring to the innermost sprocket, as an extreme example).
The inner workings of the synchronization box
The company tells us that Synchrobox works with Shimano-based drivetrains, in 3x7, 3x8 and 3x9 configurations. It's being launched at the Eurobike trade show in August, and will be priced at €89.90 (US$125).
... and if getting the system installed on your existing bike sounds like too much of a hassle, you might instead want to just start from scratch with something like the Autobike.
http://www.gizmag.com/ixow-synchrobox-adjusts-derailleurs/31952/
No hay comentarios:
Publicar un comentario