Bicycle Rear Derailleur Pulley Road Bike 17TS For Shimano
Ingcaciso yeMveliso
* 17T inkqubo iseti isikhokelo wheel yobukhulu enkulu
*17T pulleys or16T pulleys
* Kusindisa 60% ukumelana ikhonkco zochuku kuthelekiswa namasondo 11T guide "
* Version amangalele yodongwe konga ngaphezulu kwama-2.4 watts ngamandla avareji kuthelekiswa kwindlela kwethunzi yokuqala
* Carbon Pheleleyo ifayibha yokuhlala
* Pin Pheleleyo 7075 aluminium ingxubevange CNC nangokukrola ezilula ivili guide nesibili
* 17TS kulufanelekele Shimano 5800/5700/4700 / 4600 105 / Tiagra
* Ukunikela yodongwe Version Stainless Hybrid Ukunikela yodongwe Version Steel Ukunikela Version
* Ubunzima: 71.4g
* Uguqulelo Ukunikela yodongwe yi 1.2 grams elula ngaphezu version Ukunikela sentsimbi
*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.
Kutheni indawo derailleur pulley wheel
Okokuqala, nciphisa spring isikhundla aneentunja ulungise umva kwempixano ubukhulu becala, ukuphucula yobulwelwe Kumgama original buthathaka, kwaye wenze amaqhosha aphezulu okanye asezantsi umxokelelwane ukungaqondani phakathi ivili sikhokelo kunye zinegalelo kakhulu ngokwaneleyo ngakumbi.
Okwesibini, inombolo yoqhagamshelwano izinyo okanye ulawulo inombolo izinyo phakathi chain kwaye zinegalelo ze diff derailleur 17T kakhulu ngexesha izixhobo ukutshintshwa, Kunjani nje songe oluphakathi kunye namacala ezimbini iinkuni, ubukhulu lever ulawulo, ngokuqina kwamandla yolawulo.
Okokugqibela, emva ngokutsha ujikelezo igophe ebuhlanti kaThixo, umgama phakathi ivili sikhokelo ongentla kwaye zinegalelo is ngcono.
izinyathelo zokufaka
1.Remove yindawo yokuhlala ivili derailleur pulley bakhulise: Susa iqhosha lemenyu hex ecaleni isiseko ebuhlanti pulley ivili usebenzisa No. 2 hex utsalo. (The ikheji pulley ivili yokuqala isusiwe kule photo)
2.Remove jija hex, wazikhupha ebuhlanti pulley ivili yokuqala yasentwasahlobo. (The ikheji pulley ivili yokuqala isusiwe kule photo)
3. 17T carbon ebuhlanti ifayibha pulley wheel, ungabona imingxuma 8, ziphawulwe ngo-1 ukuya ku-4 udla ngokuba kukuxabana uhlengahlengiso umngxuma, ezinye i ezine ukunciphisa ubunzima. Okwendalo ezifuna yokuqala una 2. (kwempixano: 4> 3> 2> 1)
4.Install le mingxuma spring ekhethiweyo iyanyuka kwi izikhonkwane emthonjeni. Shaft stainless-intsimbi kwi ebuhlanti ivili pulley kufuneka uyithambise phambi ufakelo.
5.Push yindawo yokuhlala pulley ivili kungena emngxunyeni derailleur diff.
6.Rotating ikheji ivili pulley, isimo sentlalo pulley ebuhlanti wheel umda nkobe Screw block kwi derailleur ngasemva.
7.Tyhala ebuhlanti pulley ivili ngokupheleleyo kwi kwisiseko derailleur angasemva.
8.Faka iqhosha lemenyu hex kungena emngxunyeni kwicala lwe esisekweni derailleur ngasemva usebenzisa No. 2 hex utsalo.
9.Nsinya jija isikhonkwane.
10.Ukujikeleza ikheji pulley wheel-phindo, ukuqinisekisa ukuba nkobe kakuhle, ufakelo lugqityiwe.
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.
Okwesibini, inombolo yoqhagamshelwano izinyo okanye ulawulo inombolo izinyo phakathi chain kwaye zinegalelo ze diff derailleur 17T kakhulu ngexesha izixhobo ukutshintshwa, Kunjani nje songe oluphakathi kunye namacala ezimbini iinkuni, ubukhulu lever ulawulo, ngokuqina kwamandla yolawulo.
Okokugqibela, emva ngokutsha ujikelezo igophe ebuhlanti kaThixo, umgama phakathi ivili sikhokelo ongentla kwaye zinegalelo is ngcono.
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.
