It’s definitely my favorite groupset I’ve ever owned, and I’ve had a lot. Là, j'ai repéré une K7 Shimano en 12-28 (idéal pour grimper les cols qui présentent une corrélation entre beaux et raides ) mais : - mes dérailleurs (avant tout comme arrière) sont du Shimano Ultegra (arrière 10v) - ma chaîne est du Shimano Ultegra 10v - la K7 que j'ai repérée est du Shimano 105 (10v) If the online bike seller accepts returns if their description is incorrect and pays return shipping then that is a value in their favor. I did read that about the span being more than an actual year. Shimano Ultegra et 105, ainsi que le haut de gamme Dura-Ace représentent différents niveaux de niveau compétitif les composants de la route Shimano. Very helpful article as I am looking to upgrade from Sora. And it lets one run a larger range cassette. Well, when Di2 first came out, initially for Dura-Ace then followed by Ultegra, it seemed a reasonable bet to say that 105 would be next in line for electrification. well I’ve had 5800 shifters apart next to 6800 shifters, I mean totally apart like they’re not supposed to. Not all these mods are available with 11s yet. That’s another question, and something I’m, going to find out (and REI gives you a few months to try it out, then you can still return it, thus my snapping up the bargain price without having a bike there to try out on the spot-REI is a seriously great company!!). Both the front and rear derailleurs should offer the same light, short-stroke shifts as the Ultegra model. My two cents worth. The 105 has a bit more ‘heft’. Même si comme d'autres je rencontre le problème de petit levier qui se barre quand on accroche le grand avec, mais c'est propre à la marque pas à la gamme 105. Sinon, le 105 est carrément au même poids (8,4) qu'un des 2 utlegra... Une majorité ne voit pas de différences et sont très contents du 105 et le disent increvable, moi j'ai eu des soucis avec mais c'est mon 1er vélo de route et l'entretien n'était sans doute pas irréprochable la 1ere année et je roule par tous les temps (sauf verglas) ce qui n'a pas du arranger les choses. Having ridden both 105 and Ultegra (currently riding Ultegra) I can say, that from my experience that Ultegra: – gears runs more smoothly when changing gears (especially on hills) compared to 105 – feels stiffer than 105 – brakes better than 105. You talked about wheels and I strongly agree that lighter wheels make a huge performance and fun improvement. I say go with your heart, not your wallet. Ca fait une grosse différence entre nos 2 pratiques, "une longévité de 8 ans déjà avec zéro problème en 105". And yes, Dura-Ace Di2 is R9150 (it doesn’t take an Enigma machine to work out the pattern – although the fact that the prior generation used ’70’ to denote Di2 means perhaps you do need some codebreaking nouse). The 7000 group only got better. Well, perhaps a little bit wiser. I’m certainly not elite and with the roads in our area, I ride a Diverge that is 2Kg+ heavier than most road bikes . I do think the Ultegra runs slightly quieter and shifts slightly more smoothly, but both seem equally durable (2500 miles on each). Dreraillers had to be changed to match the shifter. This is quite an expensive way of doing things: an extra £20-30 per component soon adds up. Unhelpfully, Shimano released products for, say, 2018, in mid-2017, so there might be the odd inaccuracy. Congrats. No sign of a R7050. My real question is this – are the 2015 Ultegra parts close to the 2017 105 parts? groupsets. You get some idea of the relative costs though. I’ve shown this photo before, but include it again for reasons of laziness. Quant au tarif, il reste très bien placé. Also I recently came across a used set of Zipp 404s which I bought. And I am comparing 105 5700 with Ultegra the Ultegra 6800. The bike at $1750 is a size 52 and the bike online at $1100.00 is size 54. Vus le nombre de km que vous faites tous, cad dans le 10000, ultegra sans hésiter, quand le 105 est neuf tout marche très bien, mais dans le temps et au fil des nombreux kils….Crois-tu vraiment que les magasins vont reprendre les RS10? (For completeness, Tiagra is next, followed by Sora and Claris. Interesting and thoughtful comment. The main differences between Shimano 105 vs Ultegra are: Shimano 105 dual control levers weigh 500g, whereas Ultegra weighs 438; Shimano 105 brakes cost around 50$, whereas Ultegra cost approximately $130; Shimano 105 is designed for beginner and intermediate cyclists, whereas Ultegra is designed for professional cyclists. None the wiser, that’s where. Au club, personne savait ce qui se passait et pourtant il y a plusieurs mécanos chevronés. My summer bike is all Ultegra, and my winter bike has 105 shifters, mechs and an RS500 crankset. In reading all these comments one sticks out to me — yesterdays ultegra (i.e. Je dis comme les autres intervenants: si c'est la seule différence, garde ton argent pour mettre des meilleures roues /pneus, qui vont vraiment améliores ton vélo. I assume the bike from the LBS is new and the online one used. My other wheelsets use proper cartridge bearings all round and never need adjustment, so for my next project (another titanium frame) I will buy up a new just taken off a bike 105 groupset and try and find some good used wheels. Il est préférable d'investir dans de bonnes roues à part si on veut se faire plaisir et dépenser 400 euros de plus. I don’t mind spending $90 for calipers…the best brakes you can buy is never a bad choice in my opinion. The Dura-Ace brakes shave about 30–40 grams off using ‘unobtainium’ parts. Forum Showing the actual prices just complicates things further.). If both bikes are new I would take the information to your LBS and see if they would reduce their price 2-300 or if that embarrasses you just get the online one. (*By Kraftwerk, if there’s any justice in the world). But would change to a 52-36 chainset on my next build. As things wear, replace them with a higher grade chain and cassette. The bike I am looking at is a Pinarello Razha K from 2013 (still new as per the store manager) with 105 5700/Most. But the shifting was better but I was disappointed with the wheels shimano still do cones and cups for wheel bearings, and the cassette freewheel had lots of play . Note: This post contains affiliate links. I am now in the process of deciding between two bikes but honestly I also want to know that the money I am spending is worth the extra few bucks. 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