Bicycle Rear Derailleur Pulley Road Bike 17TS For Shimano
Mafotokozedwe Akatundu
* 17T lalikulu kukula kalozera gudumu akonzedwa dongosolo
*17T pulleys or16T pulleys
* Anapulumutsa 60% unyolo mikangano kukana poyerekeza ndi mawilo 11T chodalirika "
* Ceramic zimakhudza Baibulo amapulumutsa oposa 2.4 Watts mphamvu pafupifupi poyerekeza ndi dongosolo choyambirira kulakwa
* Full mpweya khola CHIKWANGWANI
* Full 7075 zotayidwa aloyi CNC kudula opepuka kalozera gudumu ndi kutsinde pini
* 17TS ndi oyenera Shimano 5800/5700/4700 / 4600 105 / Tiagra
* Ceramic Kuchitira Version zosapanga dzimbiri zitsulo Zophatikiza Ceramic Kuchitira Version Zitsulo Kuchitira Version
* Kulemera kwake: 71.4g
* The ceramic Kuchitira Baibulo ndi magalamu 1.2 opepuka kuposa buku zitsulo Kuchitira
*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.
N'chifukwa m'malo derailleur pulley gudumu
Choyamba, porous masika malo malire zingawongolere kumbuyo mavuto kwakukulukulu, kusintha kufooka kwa Tambasula ofooka pachiyambi, ndi kupanga mmwamba ndi pansi mavuto unyolo pakati kalozera gudumu ndi cogs zambiri mokwanira.
Kachiwiri, kukhudzana dzino nambala kapena kulamulira dzino nambala pakati unyolo ndi cogs wa kumbuyo derailleur 17T kwambiri pa zida kulakwa, izo ndikungofuna kuti kutsina pakati ndi mbali ziwiri za nkhuni zina, ikuluikulu ulamuliro chokhethemulira, mphamvu za mphamvu ulamuliro.
Pomaliza, pambuyo redesign khola la kasinthasintha pamapindikira, mtunda wa pakati chapamwamba kalozera gudumu ndi cogs ali bwino.
masitepe unsembe
1.Remove kumbuyo derailleur pulley gudumu khola: Chotsani munthu hex wononga kumbali ya m'munsi mwa khola pulley gudumu ntchito No. 2 hex wrench. (The original khola pulley gudumu chachotsedwa mu chithunzi)
2.Remove ndi hex wononga, kutenga kuchokera pachiyambi khola pulley gudumu ndi masika. (The original khola pulley gudumu chachotsedwa mu chithunzi)
3. 17T mpweya CHIKWANGWANI pulley gudumu khola, mukhoza kuona 8 mabowo, chilemba 1 mpaka 4 ndi mavuto kusintha dzenje, ena anayi kuchepetsa thupi. The kusakhulupirika koyamba kukhazikitsidwa ndi dzenje 2. (kumangika: 4> 3> 2> 1)
4.Install maenje anasankha masika ogwiritsa pa zikhomo kasupe. The zosapanga-zitsulo kutsinde pa pulley khola gudumu ayenera kudzoza pamaso unsembe.
5.Push khola pulley gudumu mu dzenje la kumbuyo derailleur.
6.Rotating pulley gudumu khola, atakhala pulley gudumu khola chipika linagawidwa malire wononga mu derailleur kumbuyo.
7.Kanikizani khola pulley gudumu kwathunthu mu m'munsi mwa derailleur kumbuyo.
8.Amaika ndi hex wononga mu dzenje kumbali ya m'munsi mwa derailleur kumbuyo ntchito No. 2 hex wrench.
9.Kumangitsa ndi wononga.
10.Mobwerezabwereza kasinthasintha pulley gudumu khola, atsimikizire linagawidwa bwino, unsembe chokwanira.
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.
Kachiwiri, kukhudzana dzino nambala kapena kulamulira dzino nambala pakati unyolo ndi cogs wa kumbuyo derailleur 17T kwambiri pa zida kulakwa, izo ndikungofuna kuti kutsina pakati ndi mbali ziwiri za nkhuni zina, ikuluikulu ulamuliro chokhethemulira, mphamvu za mphamvu ulamuliro.
Pomaliza, pambuyo redesign khola la kasinthasintha pamapindikira, mtunda wa pakati chapamwamba kalozera gudumu ndi cogs ali bwino.
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.
