Bicycle Rear Derailleur Pulley Road Bike 17TS For Shimano
Description Product
* Grande taglia sistema di ghjocu Guida rota 17t
*17T pulleys or16T pulleys
* Surghjenti 60% resistenza catina attritu paragunatu à roti Guida 11T "
* Versione carchi Ceramic poi addifenni di più cà 2.4 Quartet di lu putiri mediu paragunevuli à u sistemu shifting uriginale
* Cabbia fibbra Full
* Pin 7075 viande aluminium taglio Full ACCUDIAGNOSTICS metalli rota guida è bearing
* 17TS hè adattatu per Campagnolo 5800/5700/4700 / 4600 105 / Tiagra
* Crocifisso Ceramic Version Stainless Steel Hybrid crocifisso Ceramic Version Steel Tinennu Version
* Peso: 71.4g
* A versione crocifisso ceramica, hè 1,2 grammi liggera di a versione crocifisso azzaru
*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.
Perchè solu rota trinse diragghiaturi
Didàttica, limitu pusizioni primavera maria de pussutu aghjustà daretu tinzioni largamente, migliurà a dibulezza di trettu debuli uriginale, è fà la, è falà tinzioni catina trà rota guida è cogs assai più adequately.
Dopu, u numeru cuntattu dente o lu cuntrollu numeru dente trà catina e cogs di 17t diragghiaturi hè di più durante shifting vigori, hè ghjustu piaci to pinch i media è dui lati di qualchi vastunati, u più i to feel lu cuntrollu, u più forte à u putere di cuntrollu.
Nfini, doppu redesign Curva di rutazzioni l'cabbia, la distanza tra rota Guida supranu è u cogs hè ammigghiuratu.
passi a stallazione
1.Remove la cabbia rota diragghiaturi trinse arrière: Cacciate un puritani hex socket nant'à u latu di u fundamentu di a cabbia rota trinse cù una Algérienne hex socket No. 2. (The Cage rota trinse uriginale hè statu cacciatu in u foto)
2.Remove i puritani hex socket, pigghiari fora di l 'abarrai rota trinse uriginale è di branu. (The Cage rota trinse uriginale hè statu cacciatu in u foto)
3. 17t carbonicu cabbia rota fibre trinse, vi ponu vede 8 so tane, marcatu in 1 à 4 hè pirtusu cutter tinzioni, l '' altri quattru per muti pisu. U dial nizziali difettu hè pirtusu 2. (tinzioni: 4> 3> 2> 1)
4.Install i buchi misciu, primavera sceltu à l 'Pins, primavera. U bearing acciaio-azzaru u cabbia rota trinse deve esse greased davanti à a stallazione.
5.Push la cabbia rota trinse in lu pirtusu di diragghiaturi.
6.Rotating cabbia rota trinse, scinni cabbia rota pezzu puritani limitu, -i trinse in u diragghiaturi.
7.Spinghja a cabbia rota trinse n'avemu in u fundamentu di u diragghiaturi.
8.Inserisci i puritani hex socket in lu pirtusu di lu latu di la basi di l 'diragghiaturi cù l' Algérienne hex socket No. 2.
9.Strinciri i puritani.
10.Cabbia rota trinse rutazzioni ripetutu, cunfermanu u -i lisu, a stallazione hè cumpleta.
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.
Dopu, u numeru cuntattu dente o lu cuntrollu numeru dente trà catina e cogs di 17t diragghiaturi hè di più durante shifting vigori, hè ghjustu piaci to pinch i media è dui lati di qualchi vastunati, u più i to feel lu cuntrollu, u più forte à u putere di cuntrollu.
Nfini, doppu redesign Curva di rutazzioni l'cabbia, la distanza tra rota Guida supranu è u cogs hè ammigghiuratu.
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.
