Bicycle Rear Derailleur Pulley Road Bike 17TS For Shimano
Descrición do produto
* O sistema de xogo de rodas guía de gran tamaño 17T
*17T pulleys or16T pulleys
* Salva 60% resistencia cadea fricción en comparación coas rodas de guía 11T "
* Versión rolamento cerámico aforrar máis de 2,4 watts de potencia media en comparación co sistema de cambio orixinais
* Gaiola de fibra de carbono completa
* 7075 aliaxe de aluminio CNC de corte roda de guía completa e lixeiro do eixe do Pino
* 17TS é adecuado para Shimano 5800/5700/4700 / 4600 105 / Tiagra
* Bearing Cerámica Acero inoxidable Versión rolamento cerámico híbrido Versión Acero Bearing Versión
* Peso: 71.4g
* A versión rolamento cerámico é de 1,2 gramos máis lixeiros do que a versión de rolamento en aceiro
*Shifting speed increased by 20%-26% for Shimano systems.
*Color: Anode red, enamel, blue, gold, green
*Support up to 11-28 cassettes, compatible with 11-30 and 11-34 with the help of an RD extender.
This is the fastest RD pulley system.
17TS & 17TR installation tips:
1, due to increased offset by the oversized pulley system, please make sure your RD and frame are aligned and calibrated correctly.
2, please check the length of your chain. Here is how to calculate, chain should be 10-20mm longer than the RD at 0 tension (shown as the picture below) when rests on the smallest chainring and smallest cog.
3, to lower the requirements for chain length and RD/frame alignment, we introduce the new 16T pulley system, 17TS and 17TR. Compare with 17T, the power saving would be lowered by about 0.2 watts but increasing chain stability and shifting speed.
Por que substituír roda de polea desviador
En primeiro lugar, o límite de posición primavera poroso pode axustar a tensión de volta, en gran parte, mellorar a debilidade de estiramento débil orixinal, e facer subir e baixar a tensión da corrente entre a roda de guía e CPV máis adecuadamente.
En segundo lugar, o número de dentes de contacto ou control de número de dentes entre corrente e engrenaxes de 17T desviador traseiro é máis durante o intercambio de marchas, só desexa beliscar a medio e dous lados dalgunhas varas, canto maior a panca de mando, máis forte o poder de control.
Finalmente, despois de redeseñar curva de rotación da gaiola, a distancia entre a roda de guía superior e as engrenaxes e mellorada.
Os pasos de instalación
1.Retire o desviador polia roda traseira gaiola: Eliminar un parafuso hexagonal no lado da base da gaiola roda de polea utilizando unha clave sextavada No 2. (A gaiola roda de roldana orixinal ser eliminado na foto)
2.Retirar o parafuso sextavada, levar para fóra da gaiola de roda de roldana orixinal e primavera. (A gaiola roda de roldana orixinal ser eliminado na foto)
3. 17T carbono roda fibra polia gaiola, pode ver 8 furados, marcadas en 1 a 4 está furado de axuste da tensión, os outros catro para reducir o peso. A montaxe inicial é estándar burato 2. (tensión: 4> 3> 2> 1)
4.Install os furados de fixación do freo seleccionado nos pinos de primavera. O veu de aceiro inoxidable na gaiola roda de polea debe ser lubricados antes da instalación.
5.Push a gaiola roda de polea dentro do burato de cambio de atrás.
6.Rotating gaiola de roda de polea, definindo roda gaiola bloque parafuso límite rebote polia no desviador traseiro.
7.Empurrar a roda de polea gaiola totalmente dentro da base do desviador traseiro.
8.Inserir o parafuso sextavada no orificio na parte lateral da base do desviador traseiro utilizando a clave sextavada No 2.
9.Presione o parafuso.
10.Repetiu rotación da roda de polea de gaiola, confirmar a recuperación sen problemas, a instalación está completa.
According to test result, increase the rear derailleur pulley wheel size could significantly decrease the friction between the chain plates caused by polygon effects during chain bending, and reduce the resistance for saving rider’s cycling power.
The chain is composed of several short pieces with an inch long, we could see the chain as one inch long with around one hundred and ten section lines, due to small diameter of turning circle, when the lines pass through standard 11T pulley wheel, it needs a certain angle to turn the transferring direction of chain for about 180° through two wheels, after increasing the pulley wheel size, the chain turning angle are decreased, so the loss of friction is less correspondingly. The results shows that 17T is a good balance point between weight and decreasing the polygon effects, To increase the size blindly will lead to arc decreasing not obvious, together with weight and volume adding. Compared with common 11T pulley wheel, the friction loss caused by polygon effects of chain could be decreased about 60%.
Besides, under the same transferring speed of chain, the axis rotation speed of 17T is slower for saving the self friction loss during bearing rotation, smaller cycle could also reduce the resistance of each turn rotation. To upgrade this ceramic bearing saves more power loss.
Faster gear shifts. firstly, porous spring position limit could adjust back tension largely, improve the weakness of original weak stretch, and make the up and down chain tension between guide wheel and cogs much more adequately.
En segundo lugar, o número de dentes de contacto ou control de número de dentes entre corrente e engrenaxes de 17T desviador traseiro é máis durante o intercambio de marchas, só desexa beliscar a medio e dous lados dalgunhas varas, canto maior a panca de mando, máis forte o poder de control.
Finalmente, despois de redeseñar curva de rotación da gaiola, a distancia entre a roda de guía superior e as engrenaxes e mellorada.
And we should also tell customer that the compatibility of 11-28T cogs, the length of chain is within the range of 405-410mm standard road bike chain stay, suggest using more than 114 links, but not too short chain, or it might lead to too large back tension and enlarge the tooth tip resistance between chain and pulley wheels. (In case customer just has short chain, suggesting install it to lowest tension of spring mounting hole).
It can faster SHIMANO system up and down gear to improve 20%-26%. save 2.4 watts more.
