Bicycle Rear Derailleur Pulley Road Bike 17TS For Shimano
Product nkọwa
* 17T nnukwu size ndu wheel set usoro
*17T pulleys or16T pulleys
* Azọpụta 60% yinye esemokwu eguzogide tụnyere 11T ndu wheel "
* Efere amị version azọpụta karịa 2.4 watts nke nkezi ike tụnyere ndị mbụ shifting usoro
* Full carbon eriri onu
* Full 7075 aluminum alloy CNC ọnwụ fechaa ndu wheel na aro pin
* 17TS adabara Shimano 5800/5700/4700 / 4600 105 / Tiagra
* Efere agba Version igwe anaghị agba nchara ngwakọ Efere agba Version Steel Iburu Version
* Arọ: 71.4g
* The seramiiki agba version bụ 1.2 grams Mkpa ọkụ ka nchara-agba 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.
Mere dochie derailleur pole wheel
Firstly, porous spring ọnọdụ ịgba pụrụ ịgbanwe azụ erughị ala n'ụzọ dị ukwuu, melite adịghị ike nke mbụ na-adịghị ike gbatia, na-eme ka elu na ala yinye esemokwu ndu wheel na cogs ihe ndị ọzọ nke ọma.
Nke abuo, na kọntaktị nha nha nọmba ma ọ bụ akara eze nọmba n'etiti yinye na cogs nke n'azụ derailleur 17T ọzọ bụ n'oge gia shifting, ọ dị nnọọ ka tuo n'etiti na abụọ n'akụkụ nke ụfọdụ ruo, ibu akara menjuobi, ndị siri ike na-achịkwa ike.
Egbu, mgbe redesign onu nke adiana usoro, anya n'etiti elu ndu wheel na cogs na-akakwa mma.
nwụnye nzọụkwụ
1.Remove n'azụ derailleur pole wheel onu: Wepụ a hex ịghasa na n'akụkụ nke isi nke pole wheel onu iji a Nke 2 hex spana. (The mbụ pole wheel onu e wepụrụ na foto)
2.Remove na hex ịghasa, wepụ nke mbụ pole wheel onu na mmiri. (The mbụ pole wheel onu e wepụrụ na foto)
3. 17T carbon eriri pole wheel onu, i nwere ike ịhụ 8 oghere, na akara 1 na 4 na-erughị ala ukpụhọde onu, na ha anọ maka belata ibu ibu. The ndabere mbụ arịọnụ bụ oghere 2. (erughị ala: 4> 3> 2> 1)
4.Install họrọ spring arịọnụ oghere na spring mkpọ. The igwe anaghị-ígwè aro na pole wheel onu ga-tee tupu echichi.
5.Push na pole wheel onu n'ime oghere nke n'azụ derailleur.
6.Rotating pole wheel onu, mwube pole wheel onu rebound ịgba ịghasa ngọngọ na azụ derailleur.
7.Sọ pole wheel onu n'ụzọ zuru ezu n'ime ndị isi nke n'azụ derailleur.
8.Fanye hex ịghasa n'ime oghere n'akụkụ nke isi nke n'azụ derailleur iji Nke 2 hex spana.
9.Kedo sikwuo ịghasa.
10.Ugboro ugboro adiana pole wheel onu, n'ịkwado rebound were were, na nwụnye zuru ezu.
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.
Nke abuo, na kọntaktị nha nha nọmba ma ọ bụ akara eze nọmba n'etiti yinye na cogs nke n'azụ derailleur 17T ọzọ bụ n'oge gia shifting, ọ dị nnọọ ka tuo n'etiti na abụọ n'akụkụ nke ụfọdụ ruo, ibu akara menjuobi, ndị siri ike na-achịkwa ike.
Egbu, mgbe redesign onu nke adiana usoro, anya n'etiti elu ndu wheel na cogs na-akakwa mma.
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.
