shimano está dando una ronda de presentaciones de novedades apra 2011 donde se firma un contrato de "silencio" a los asistentes, aun asi están saliendo cosillas de estas sesiones. Personalmente no me voy a aventurar a poner fotos cnd toque, pero os contaré lo que sepa
Del XTR,de momento,ná de ná. Pero del XT y SLX van saliendo cosillas... 3x10,tecnología Dynasis. No cambia mucho de aspecto,eso sí,creo que es excesivo el 3x10 con un 24x36 de desarrollo más corto...Igual para la Scanuppia...no sé.
Eso digo yo. Han hecho un cassette Ultegra de 10v con otras coronas mas grandes. Le han puesto un "click" mas a la maneta, y poco más. Desarrollo 24/36........... será pa subirse por las paredes
**** un 36 dependiendo para quien es una salvajada por mucho que tire para arriba, la unica ventaja que le veo es para la gente que sale menos, que utiliza la bici muuuuy esporadicamente, asi puede meter doble plato y aligerar unos gramazos sin quedarse sin desarrollo
Hola por que lleva el pulsador colocado al lado del puño?? vosotros lo llevais asi o llevais la maneta de freno en el lado del puño??? saludos
Buena pregunta Kos.He estado leyendo sobre el XT nuevo,y lo que he sacado en conclusión del Dynasis,es que es de 10 coronas.No se entiende más... Por cierto: 2011 Shimano Deore XT Specifications: RD-M773 – XT Shimano Shadow Rear Derailleur * Low Profile Shimano Shadow rear derailleur design reduces the component profile by 15mm less than a traditional design in high gear. * Top normal spring design to mesh with the more common choice of RapidFire shifters for trail / all-mountain riding * Sealed bearing guide and tension pulleys * Available in medium and long cage (GS and SGS) * Total capacity: 43T (SGS), 35T (GS) * MSRP: $129.99 FD-M770/771-10 Front Derailleur Specific 10s cage design * Available in Top Swing, conventional, or E-type configurations to mount on most any frame * Adaptable clamp means one size fits all for 28.6, 31.8, 34.9 and multi-pull allows top or bottom cable pull * Set screws are angle outward for easier adjustment on some full suspension designs * Clamp band positions the same for 9 and 10s versions * Cage profiled for more tire clearance * MSRP: $59.99 SL-M770-10-R RapidFire Plus Shift Lever (rear) * Additional rear shifter option with 10s vs. 9s * Alloy main lever 2-way release trigger allows thumb or finger actuation * Two position clamp band for tune-able ergonomics * Multi-bearing construction for greater durability and reduced effort * Removeable optical gear display * MSRP: $99.99 (set, front lever same as 9s) FC-M770-10 Front Chainwheel * Hollowtech II design maximizes stiffness while keeping weight to a minimum * Precision two-piece construction for perfect chainline and chainwheel alignment. * 42T-32T-24T * Carbon / Steel composite middle ring adds rigidity for better shifting, increases service life, and smoothly delivers powers to the cassette. * Outboard bearings maximize stability and stiffness * MSRP: $359.99 CS-M771-10 Cassette * Largest 6 cogs on two spiders for light and rigid construction * 11-13-15-17-19-21-24-28-32-36 and 11-13-15-17-19-21-23-26-30-34 * Alloy lock ring * MSRP: $114.99 CN-HG94 Chain HG-X direction chain * Inner and outer plates feature asymmetrical design to optimize front and rear shifting * Zinc-alloy plated for maximum durability * Uses standard connecting pin * MSRP: $49.99
A ver qué sacáis en conclusión: Shimano are calling their new drivetrain technology Dyna-Sys, and insist they haven't simply added an extra cog to the cassette. In fact, they're calling it "a whole new way of shifting." Both groupsets will get new cranksets, chains, cassettes, derailleurs and 2-Way Release rear shifters. Only a triple chainset will be available (42-32-24T) – an interesting decision, given that one of the main perceived advantages of a 10-speed cassette is that you can ditch a front chainring yet still retain an adequate number of gears. The Big S say that having a wider gear range at the back, more closely spaced gears at the front, and improved rear mechs and shifters, creates smoother and more intuitive shifting, more efficient and powerful pedalling, and allows the rider to stay in the middle and largest chainrings for a higher proportion of the time. "The larger the chainring size, the lower the chain tension, the lower the impact on rear suspension and ultimately the most efficient transfer of power," they say. It should also produce a straighter chainline, which will reduce drivetrain-induced suspension movement on bikes with rear shocks. Shimano also reckon the Dyna-Sys setup with its smaller large chainring (42T rather than 44T) and larger small chainring (24T rather than 22T) will reduce the number of 'recovery shifts' needed at the rear when changing at the front, making it easier to maintain your pedalling cadence.
esto es lo que buscabaXXD el cassete 70 pavos, un precio acojonantisimo, con eso ya hay cassette standar ligero 10 velocidades al igual que ahora mismo es el xt si tener que dejarse 230 pavos por ser sram
Yo creo que el cambio si sirve, ya que el casette debe ser igual de ancho que el de 9V (si no habria que cambiar bujes), con lo que solo variara el ratio de tiro de los pulasdores. Vamos que casi seguro que si sirve el cambio de 9v.
