Bicycle Rear Derailleur Pulley Road Bike 17TS For Shimano
Produk Beskrywing
* 17T groot grootte gids wiel stel stelsel
*17T pulleys or16T pulleys
* Slaat 60% ketting wrywing weerstand in vergelyking met 11T gids wiele "
* Keramiek dra weergawe spaar meer as 2,4 watt van gemiddelde krag in vergelyking met die oorspronklike verskuiwing stelsel
* Vol koolstofvesel hok
* Vol 7075 aluminium CNC sny liggewig gids wiel en steel pen
* 17TS is geskik vir Shimano 5800/5700/4700 / 4600 105 / Tiagra
* Keramiek Lager Weergawe vlekvrye staal Hybrid Keramiek Lager Weergawe Steel Met weergawe
* Weight: 71.4g
* Die keramiek Lager weergawe is 1.2 gram ligter as die staal Lager weergawe
*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.
Hoekom vervang derailleur katrol wiel
Eerstens, kan poreuse lente posisie limiet terug grootliks te pas spanning, die verbetering van die swakheid van oorspronklike swak rek, en maak die op en af ketting spanning tussen gids wiel en ratte baie meer voldoende.
In die tweede plek, die kontak tand nommer of beheer tand nommer tussen ketting en ratte van derailleur 17T is meer tydens rat verskuiwing, is dit net graag die middel en twee kante van 'n paar stokke, hoe groter die beheer hefboom, hoe sterker is die beheer krag knyp.
Laastens, nadat herontwerp die hok se rotasie kurwe, is die afstand tussen die boonste gids wiel en die ratte verbeter.
stappe installasie
1.Remove die agterste derailleur katrol wiel hok: Verwyder 'n blok skroef aan die kant van die basis van die katrol wiel hok met behulp van 'n No. 2 hex wrench. (Die oorspronklike katrol wiel hok verwyder in die foto)
2.Remove die blok skroef, uit die oorspronklike katrol wiel hok en lente. (Die oorspronklike katrol wiel hok verwyder in die foto)
3. 17T koolstofvesel katrol wiel hok, kan jy sien 8 gate, gemerk in 1 tot 4 is spanning aanpassing gat, die ander vier om gewig te verminder. Die standaard aanvanklike montering is gat 2. (spanning: 4> 3> 2> 1)
4.Install die gekose lente toenemende gate op die lente penne. Die vlekvrye staal skag op die katrol wiel hok moet gesmeerde voor installasie.
5.Push die katrol wiel hok in die gat van agter derailleur.
6.Rotating katrol wiel hok, die opstel van katrol wiel hok rebound limiet skroef blok in die agterste derailleur.
7.Stoot die katrol wiel hok ten volle in die basis van die agterste derailleur.
8.Plaas die blok skroef in die gat aan die kant van die basis van die agterste derailleur met behulp van die No. 2 hex wrench.
9.Draai die skroef.
10.Herhaal rotasie katrol wiel hok, bevestig die rebound glad, die installasie is voltooi.
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.
In die tweede plek, die kontak tand nommer of beheer tand nommer tussen ketting en ratte van derailleur 17T is meer tydens rat verskuiwing, is dit net graag die middel en twee kante van 'n paar stokke, hoe groter die beheer hefboom, hoe sterker is die beheer krag knyp.
Laastens, nadat herontwerp die hok se rotasie kurwe, is die afstand tussen die boonste gids wiel en die ratte verbeter.
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.
