Bicycle Rear Derailleur Pulley Road Bike 17TS For Shimano
samfurin description
* 17T manyan size jagora dabaran sa tsarin
*17T pulleys or16T pulleys
* Kubutar da 60% sarkar gogayya juriya idan aka kwatanta da 11T jagora ƙafafun "
* Yumbu hali version kubutar da fiye da 2.4 watts talakawan ikon idan aka kwatanta da asali canjawa tsarin
* Full carbon fiber keji
* Full 7075 aluminum gami CNC sabon hur jagora dabaran da shaft fil
* 17TS ne dace da Shimano 5800/5700/4700 / 4600 105 / Tiagra
* Yumbu hali Version Bakin Karfe Hybrid yumbu hali Version Karfe hali Version
* Weight: 71.4g
* A yumbu hali version ne 1.2 grams wuta fiye da karfe hali version
*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.
Me maye gurbin derailleur kura dabaran
Da fari dai, porous spring matsayin iyaka iya daidaita mayar tashin hankali sun fi mayar, inganta rauni na asali rauni mikewa, da kuma yin sama da kasa sarkar tashin hankali tsakanin jagora dabaran da cogs yafi kamata.
Abu na biyu, lamba hakori lambar ko iko hakori yawan tsakanin sarkar da cogs na raya derailleur 17T ne mafi lokacin kaya canjawa, shi kawai so a tsunkule tsakiyar da kuma bangarorin biyu na wasu sandunansu, da ya fi girma da iko liba, da karfi da iko da iko.
A ƙarshe, bayan zana keji ta juyawa kwana, da nesa tsakanin manya jagora dabaran da cogs aka inganta.
Girkawar matakai
1.Remove raya derailleur kura dabaran keji: Cire wani hex dunƙule a gefen tushe daga cikin kura dabaran keji amfani da wani No. 2 hex tsananin baƙin ciki. (The asali kura dabaran keji an cire a cikin photo)
2.Remove da hex dunƙule, kama daga na asali kura dabaran keji da kuma bazara. (The asali kura dabaran keji an cire a cikin photo)
3. 17T carbon fiber kura dabaran keji, za ka iya ganin 8 ramukan, alama a 1 zuwa 4 da aka tashin hankali gyara rami, da sauran hudu ga rage nauyi. The default farko hawa ne rami 2. (tashin hankali: 4> 3> 2> 1)
4.Install da aka zaɓa spring hawa ramuka a spring fil. A bakin-karfe shaft a kan kura dabaran keji ya kamata a greased da kafuwa.
5.Push da kura dabaran keji a cikin rami na raya derailleur.
6.Rotating kura dabaran keji, saitin kura dabaran keji irinta iyaka dunƙule block a raya derailleur.
7.Tura da kura dabaran keji cikakken cikin tushe na raya derailleur.
8.Saka hex dunƙule a cikin rami a gefen tushe na raya derailleur amfani da No. 2 hex tsananin baƙin ciki.
9.Dame dunƙule.
10.Maimaita juyawa kura dabaran keji, tabbatar da irinta smoothly, da kafuwa ne complete.
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.
Abu na biyu, lamba hakori lambar ko iko hakori yawan tsakanin sarkar da cogs na raya derailleur 17T ne mafi lokacin kaya canjawa, shi kawai so a tsunkule tsakiyar da kuma bangarorin biyu na wasu sandunansu, da ya fi girma da iko liba, da karfi da iko da iko.
A ƙarshe, bayan zana keji ta juyawa kwana, da nesa tsakanin manya jagora dabaran da cogs aka inganta.
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.
