Bicycle Rear Derailleur Pulley Road Bike 17TS For Shimano
khoom piav qhia
* 17T loj loj daim ntawv qhia log set system
*17T pulleys or16T pulleys
* Tej yam 60% saw txhuam kuj piv rau 11T qhia log "
* Tej hub kabmob version tej yam ntau tshaj li 2.4 watts ntawm nruab nrab hwj chim muab piv rau tus thawj shifting system
* Tag nrho cov carbon fiber tawb
* Tag nrho cov 7075 txhuas hlau CNC tej khaub-ncaws nyias daim ntawv qhia log thiab ncej pin
* 17TS yog haum rau Shimano 5800/5700/4700 / 4600 105 / Tiagra
* Tej hub kabmob Version Stainless hlau Hybrid Ceramic kabmob Version Steel Cov Kabmob Version
* Nyhav: 71.4g
* Cov hub kabmob version yog 1.2 grams lighter tshaj lub steel kabmob 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.
Yog vim li cas hloov derailleur pulley log
Firstly, ntxeem tau caij nplooj ntoos hlav txoj hauj lwm tsis pub tshaj yuav kho rov qab nro lom zem ntau, ua kom cov tsis muaj zog uas yog thawj tsis muaj zog stretch, thiab ua tus tu thiab down saw nro ntawm daim ntawv qhia log thiab cogs ntau npaum li cas txaus.
Secondly, hu hniav tooj los yog tswj hniav tooj ntawm cov saw thiab cogs ntawm rear derailleur 17T yog ntau thaum lub sij hawm iav shifting, nws cia li xav de rau hauv nruab nrab thiab ob tog ntawm ib co nrog, tus loj dua cov tswj qib, lub zog cov tswj lub hwj chim.
Ntsig, tom qab kho lub tawb txoj kev tig nkhaus, qhov kev ncua deb ntawm sab sauv qhia log thiab lub cogs yog zoo tuaj.
installation kauj ruam
1.Remove lub rear derailleur pulley log tawb: Tshem tawm ib tug hex ntsia hlau nyob rau sab ntawm lub hauv paus ntawm lub pulley log tawb siv ib tug No. 2 hex ciaj ntswj. (Tus thawj pulley log tawb tau raug tshem tawm nyob rau hauv cov kev yees duab)
2.Remove lub hex ntsia hlau, coj tawm ntawm tus thawj pulley log tawb thiab caij nplooj ntoos hlav. (Tus thawj pulley log tawb tau raug tshem tawm nyob rau hauv cov kev yees duab)
3. 17T carbon fiber pulley log tawb, koj yuav saib tau 8 qhov, cim nyob rau hauv 1 mus rau 4 yog nro hloov qhov, lwm yam plaub rau txo ceeb thawj. Lub neej ntawd thawj zaug mounting yog qhov 2. (nro: 4> 3> 2> 1)
4.Install xaiv caij nplooj ntoos hlav mounting qhov ntawm lub caij nplooj ntoos hlav pins. Lub stainless-hlau ncej rau lub pulley log tawb yuav tsum tau greased ua ntej installation.
5.Push lub pulley log tawb rau hauv lub qhov ntawm rear derailleur.
6.Rotating pulley log tawb, qhov chaw kawm pulley log tawb thaws txwv ntsia hlau thaiv nyob rau hauv lub rear derailleur.
7.Thawb tus pulley log tawb siab mus rau hauv lub hauv paus ntawm lub rear derailleur.
8.Ntxig rau lub hex ntsia hlau rau hauv lub qhov nyob rau sab ntawm lub hauv paus ntawm lub rear derailleur siv cov No. 2 hex ciaj ntswj.
9.Ceev cov ntsia hlau.
10.Ua kev sib hloov pulley log tawb, paub meej tias tus thaws ntseeg nkaws, lub installation tag.
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.
Secondly, hu hniav tooj los yog tswj hniav tooj ntawm cov saw thiab cogs ntawm rear derailleur 17T yog ntau thaum lub sij hawm iav shifting, nws cia li xav de rau hauv nruab nrab thiab ob tog ntawm ib co nrog, tus loj dua cov tswj qib, lub zog cov tswj lub hwj chim.
Ntsig, tom qab kho lub tawb txoj kev tig nkhaus, qhov kev ncua deb ntawm sab sauv qhia log thiab lub cogs yog zoo tuaj.
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.
