Votre vélo a besoin de changement de dérailleur arrière ? Afin de bien choisir le bon dérailleur, compatible avec votre système actuel ce guide pourra vous diriger vers le bon chemin
Nous traiterons ici uniquement les dérailleurs arrières VTT et Route, car les dérailleurs avant nécessiteraient d’un article entier.
Les marques de dérailleur
Les 2 principaux fabricants sont Shimano, SRAM prenant la plus grosse part de marché. A cela s’ajoute Campagnolo (vélo de route uniquement), puis Microshift, Box, Rotor, ou FSA.
Ratio et déplacement du dérailleur VTT et Route
En règle générale, il est vivement déconseillé de mélanger les marques sur un même systeme. Par exemple une manette Shimano, un dérailleur SRAM. Chaque marque utilise un ratio différent pour le tirage de cable. Afin de passer d’une vitesse à la prochaine, la cinétique (déplacement des éléments) du dérailleur, la longueur de cable tirée par la manette, la distance parcourue par le dérailleur, sont autant de paramètres qui influeront sur votre passage de vitesse, et rendront votre sortie soit un pur plaisir, soit infernale.
Ceci dit, certains éléments de marque différente peuvent être compatibles entre eux pour certains éléments tels que pédalier, couronne et cassette.
| Manette de vitesse | Tirage de cable (mm) |
|---|---|
| Shimano 10 Route | 2.3 |
| Shimano 9 | 2.5 |
| Campagnolo 11 | 2.6 |
| Shimano 11 Route | 2.7 |
| Campagnolo 10 | 2.8 |
| Shimano 8 | 2.8 |
| Shimano 7 | 2.9 |
| Campagnolo new 9 | 3 |
| SRAM (Exact Actuation) 10 Route/Mountain | 3.1 |
| SRAM (Exact Actuation) 11 Route | 3.1 |
| Campagnolo old 9 | 3.2 |
| Shimano 6 | 3.2 |
| Shimano 10 Mountain | 3.4 |
| SRAM (X-Actuation) 11 Mountain | 3.48 |
| Campagnolo 8 | 3.5 |
| Shimano 11 Mountain | 3.6 |
| SRAM (1:1) 9 Mountain | 4 |
| SRAM (1:1) 8 Mountain | 4.3 |
| SRAM (1:1) 7 Mountain | 4.5 |
For the happiest life, days should be rigorously planned, nights left open to chance.
I should be incapable of drawing a single stroke at the present moment; and yet I feel that I never was a greater artist than now. When, while the lovely valley teems with vapour around me, and the meridian sun strikes the upper surface of the impenetrable foliage of my trees, and but a few stray gleams steal into the inner sanctuary, I throw myself down among the tall grass by the trickling stream; and, as I lie close to the earth, a thousand unknown plants are noticed by me.
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When I hear the buzz of the little world among the stalks, and grow familiar with the countless lorem ipsum dolor indescribable forms of the insects and flies, then I feel the presence of the Almighty, who formed us in his own image, and the breath. One morning, when Gregor Samsa woke from troubled dreams, he found himself transformed in his bed into a horrible vermin. He lay on his armour-like back.
The List for doing things
- Start International News & Magazine Websites
- Installing Themes
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In a free hour, when our power of choice is untrammelled and when nothing prevents our being able to do what we like best, every pleasure is to be welcomed and every pain avoided. But in certain circumstances and owing to the claims of duty or the obligations of business it will frequently occur that pleasures have to be repudiated and annoyances accepted. The wise man therefore always holds in these matters.
[penci_blockquote align= »none » author= »Norman Vincent »]CHANGE YOUR THOUGHTS, YOU CHANGE YOUR WORLD[/penci_blockquote]
If several languages coalesce, the grammar of the resulting language is more simple and regular than that of the individual. The new common language will be more simple and regular than the existing European.
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It showed a lady fitted out with a fur hat and fur boa who sat upright, raising a heavy fur muff that covered the whole of her lower arm towards the viewer. Gregor then turned to look out the window at the dull weather. Maecenas nec odio et ante tincidunt.
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The bedding was hardly able to cover it and seemed ready to slide off any moment. His many legs, pitifully thin compared with the size of the rest of him, waved about helplessly as he looked. « What’s happened to me? » he thought. It wasn’t a dream. His room, a proper human room although a little too small, lay peacefully between its four familiar walls. A collection of textile samples lay spread out on the table – Samsa was a travelling salesman – and above it there hung a picture that he had recently cut out of an illustrated magazine and housed. Everyone realizes why a new common language would be desirable: one could refuse to pay expensive translators.
The European languages are members of the same family. Their separate existence is a myth. For science, music, sport, etc, Europe uses the same vocabulary. The languages only differ in their grammar, their pronunciation and their most common words. Everyone realizes why a new common language..
[penci_blockquote align= »left » author= » »]Do not mind anything that anyone tells you about anyone else.[/penci_blockquote]It wasn’t a dream. His room, a proper human room although a little too small, lay peacefully between its four familiar walls. A collection of textile samples lay spread out on the table – Samsa was a travelling salesman – and above it there hung a picture that he had recently cut out of an illustrated magazine and housed in a nice, gilded frame. It showed a lady fitted out with a fur hat and fur boa who sat upright, raising a heavy fur muff that covered the whole of her lower arm towards the viewer. Gregor then turned to look out the window at the dull weather. She packed her seven versalia, put her initial into the belt and made herself on the way.
One morning, when Gregor Samsa woke from troubled dreams, he found himself transformed in his bed into a horrible vermin. He lay on his armour-like back, and if he lifted his head a little he could see his brown belly, slightly domed and divided by arches into stiff sections.