Bicycle Rear Derailleur Pulley Road Bike 17TS For Shimano
paglalarawan ng produkto
* 17T malaking sukat gabay wheel set ng system
*17T pulleys or16T pulleys
* Sine-save ang 60% chain alitan paglaban kumpara sa 11T gabay sa wheels "
* Ceramic bearing bersyon ay ini-imbak ng higit sa 2.4 Watts ng average na kapangyarihan kung ihahambing sa orihinal na sistema ng paglilipat
* Buong carbon fiber hawla
* Buong 7075 aluminyo haluang metal CNC cutting lightweight gabay wheel at baras pin
* 17TS ay angkop para sa Shimano 5800/5700/4700 / 4600 105 / Tiagra
* Ceramic Bearing Bersyon Hindi Kinakalawang Na Asero Hybrid Ceramic Bearing Bersyon Steel Bearing Version
* Timbang: 71.4g
* Ang ceramic Bearing bersyon ay 1.2 gramo mas magaan kaysa sa bakal Bearing bersyon
*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.
Bakit palitan derailleur kalo wheel
Una, maraming butas na maliliit na limitasyon spring na posisyon ay maaaring ayusin pabalik tensyon sa kalakhan, mapabuti ang kahinaan ng orihinal na mahinang mag-inat, at gawin ang mga up at down kadena tensyon sa pagitan gabay wheel at cogs mas sapat.
Pangalawa, ang mga contact na ngipin number o kontrol ngipin numero sa pagitan ng chain at cogs ng rear derailleur 17T ay mas sa panahon gear paglilipat, ito lang bang kurutin gitna at dalawang gilid ng ilang patpat, ang mas malaki ang control pingga, ang mas malakas ang control kapangyarihan.
Sa wakas, matapos ang muling idisenyo-ikot curve sa hawla, ang distansya sa pagitan ng itaas na gabay wheel at ang cogs ay mapapahusay.
hakbang sa pag-install
1.Remove likuran derailleur kalo wheel hawla: Alisin ang isang hex tornilyo sa gilid ng base ng kalo wheel hawla paggamit ng No. 2 hex wrench. (Ang orihinal na kalo wheel hawla ay tinanggal dahil sa larawan)
2.Remove ang hex tornilyo, kumuha ng orihinal na kalo wheel hawla at spring. (Ang orihinal na kalo wheel hawla ay tinanggal dahil sa larawan)
3. 17T carbon fiber kalo wheel hawla, maaari mong makita 8 mga butas, na minarkahan sa 1 hanggang 4 ay tensyon adjustment hole, ang ibang apat na para mabawasan ang timbang. Ang default na paunang pag-mount ang hole 2. (tensyon: 4> 3> 2> 1)
4.Install ang napiling spring tumataas butas sa pin spring. Ang hindi kinakalawang na asero baras sa pulley wheel hawla ay dapat na greased sa harap ng pag-install.
5.Push kalo wheel hawla sa butas ng rear derailleur.
6.Rotating kalo wheel hawla, pagse-set pulley wheel hawla limitasyon rebound tornilyo bloke sa likuran derailleur.
7.Itulak ang kalo wheel hawla ganap na papunta sa base ng likod derailleur.
8.Ipasok ang hex tornilyo sa butas sa gilid ng paanan ng rear derailleur gamit ang No. 2 hex wrench.
9.Higpitan ang tornilyo.
10.Paulit-ulit na pag-ikot ng pulley wheel hawla, kumpirmahin ang pagtalbog swabe, ang pag-install ay kumpleto na.
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.
Pangalawa, ang mga contact na ngipin number o kontrol ngipin numero sa pagitan ng chain at cogs ng rear derailleur 17T ay mas sa panahon gear paglilipat, ito lang bang kurutin gitna at dalawang gilid ng ilang patpat, ang mas malaki ang control pingga, ang mas malakas ang control kapangyarihan.
Sa wakas, matapos ang muling idisenyo-ikot curve sa hawla, ang distansya sa pagitan ng itaas na gabay wheel at ang cogs ay mapapahusay.
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.
