Original Factory Hanging Wheel Hanging Roller - Wholesale ODM Chainless Drive Shaft Bicycle Bike Sharing System 24 Inch – Kactus Sports

Our advancement depends over the highly developed devices, excellent talents and continually strengthened technology forces for Wholesale ODM Chainless Drive Shaft Bicycle Bike Sharing System 24 Inch, We will do your personalized purchase to meet your own satisfactory! Our business sets up several departments, including output department, revenue department, excellent control department and sevice center, etc.
Our advancement depends over the highly developed devices, excellent talents and continually strengthened technology forces for Band Brake Fixed Gear Steel Fork Sharing Bike, Oem Single Speed Direct Aluminum Alloy Drive Shaft Frame Public Bicycle For Sale, Popular Sharing Bicycle, Our product quality is one of the major concerns and has been produced to meet the customer’s standards. “Customer services and relationship” is another important area which we understand good communication and relationships with our customers is the most significant power to run it as a long term business.

12/18T Oversized pulley system

Save up to 45% friction resistance, compare to 11T pulley

Ceramic bearing version saves more than 2.2 watt power on average, compare to original transmission

Full carbon fiber cage

Full 7075 aluminum alloy CNC lightweight pulley

18TSRX suitable for SRAM X1 XX1 GX NX Ceramic bearing

Ceramic bearing version hybrid ceramic bearing version NSK steel bearing version

Weight: 59g

Ceramic bearing version weighs 1.2g less.

Why replace derailleur pulley

First, replace the original pulleys with these would improve the weak stretch of the original set, and make the up and down chain tension between guide wheel and cogs much more adequate.

Second, the number of contact tooth or control tooth between chain and cogs of 17T is more during gear shifting, the more contact, the stronger the control power. 

Third, after redesign the cage’s rotation curve, the distance between upper guide wheel and the cogs is improved.

Long story short, with all the features mentioned above, you would save 2.2 watts or more with each pedaling. That’s the equivalent of shaving 100g off a 10KG bike.