17TSR k'habone faeba Bike Rear Derailleur Pulleys Jockey Wheel Ceramic le behe Ultralight baesekele
Tlhaloso ea Sehlahisoa
* 12 / 17T bartolomeo kholo boholo tataiso lebili sete oona tsamaisong
* Pholosa 45% ketane khohlano ho hanyetsa bapisoa le mabili 11T tataiso "
* Ceramic behang tlhahiso pholosa ho feta 2.2 Watts la matla karolelano bapisoa le tsamaiso ea pele phetiso
* Full k'habone faeba tataiso letsoho
* Full 7075 aluminium motsoako CNC itšeha bobebe tataiso lebili le TC4 thaethaniamo motsoako leakage radiation
*Color: Anode red, enamel, blue, gold, green
* 17TSR loketse SRAM hlōlisanang qobelle RED
* Ceramic le behe Version Hybrid Ceramic le behe Version NSK Steel le behe Version
* Weight: 63 dikgerama
* The ceramic behang tlhahiso e dikgerama 1.2 bobebe ho feta phetolelo ea tšepe behang
1.Different from other brands with eccentric designs, we designed these two products adopting the SRAM concentric design. The benefit of such design is that it won’t have any negative impact on neither the crisp shifting feel nor the tooth capability of the cassette nor
This is also the exact reason why Shimano ceased the production of 6800/9000 and upgraded their design to R8000/9100.
Therefore, we choose 12T/17T over 17T/17T.
Compared to original transmission system with 11T pulley, our products decrease friction resistance by 45%, ceramic bearing pulleys save more than 2.2 watts on average with each pedaling, increase shifting speed by 20-26%. Enhanced chain stability by implementing narrow-wide tooth upper pulley for more accurate and crisper shifting.
2.Extended tooth for lower pulley, to prevent chains from coming off.
One thing to clarify is that, it’s not wise to implement narrow-wide tooth to any situation.
Yes, narrow-wide tooth provides better stability, but it is achieved at the cost of more friction resistance. As designers and manufacturers, we aim to be adaptable, to provide different products for different occasions, to suit your need best, not bragging a certain “high tech” which looks fancy but brings negative impact for your experience.
3. Titanium alloy CNC shaft.
To pursue the goal of lightweight, we overcame as many obstacles as possible, even it’s just for 2-4 grams of improvement. Shafts of products for ETAP and mechanical are both made of 6/4 titanium alloy. Even in original SRAM products, titanium shafts are only available with RED RD, not even ETAP, ETAP shafts are made of steel.
4.Patent design for ultra-lightweight concentric upper pulley structure.
One 7075CNC screw to fasten 7 pieces. Easy to maintain or customize while remain light and durable.
Hobaneng nka sebaka derailleur pulley lebili
Pele, porous selemo boemo ba moedi ka fetola morao tsitsipano haholo, ntlafatsa bofokoli ba otlolle fokolang ea pele, 'me le etse ho ea holimo le tlaase tsitsipano ketane pakeng tsa tataiso lebili le cogs tse ling tse ngata ka ho lekaneng.
Tabeng ya bobedi, ya ho ikopanya le leino nomoro kapa taolo leino palo pakeng tsa ketane le cogs tsa morao derailleur 17T ke ho feta nakong ea Gear tsitsang, e mpa feela e rata ho pinch bohareng le mahlakore a mabeli a ba bang ba lithupa, tse khōloanyane le taolo Lever, u tla matlafala le matla a taolo.
Qetellong, ka mor'a redesign sa gorole e potolohang mothinya, le sebaka se pakeng tsa ka holimo tataiso lebili le cogs e ntlafala.
mehato tlhomamiso
1.Fist, find the screw of pulley wheel cage in the back of rear derailleur
2.Remove the screw with cross tip Screwdriver
3.Pull out the screw
4. Remove and grease the screw and spring before assembly the new 12-17T carbon cade
5. We suggest fix the spring in the left hole for the first time assembly
6. Grease the titanium axle before assembly new cage
7. Push the spring in the hole
8. Clockwise rotate the cage andpush into rear derailleur
9. Push all when make sure the positioning post right in the position
10. Push back the screw in the hole and fix with cross tip screwdrive
11. Finish
Concentric swing system.
SRAM has been on a different path when it comes to RD design. While Shimano and CP prefer eccentric structure, SRAM chooses concentric structure. With eccentric RD structure, the RD shifting suffers from the length difference of chain between different FD positions. If there is no FD, eccentric design is just perfect for the impact from the shifting curve from cassette to the chain length change, just like what SRAM has done for 1X system, which fulfill both the need for speedy shifting and stability.
The new Shimano DA9100 and R8000 are implementing concentric upper pulley design, which is just another example of the excellency of such design, the relatively fixed position of the upper pulley prevents negative impacts from both jumpy surface and FD shifting, ensures the accuracy and speed of RD shifting.
