Or do I need some pulley's specific to the derailler or SRAM in general?
ESP 7s are so cheap, you might as well get a new mech! you'll find it much easier to find a SRAM X7 versus the pulleys for your current mech. you can try jensonUSA.com if your set on that, but i advise just getting a new derailleur. the X7 is on average
Questo video mostra la sostituzione della rotellina del cambio su Campagnolo Super Record 11s. This video shows the replacement of Super Record ...
This is a video on how to clean and lubricate the rear derailleur of a bike. In the process, it also demonstrates how to use products from Finish ...
Remember when you didn’t think about the gears on your bike? Your bike had a bike sprocket connected to the pedals and a small sprocket connected to the back wheel an that’s all you needed. Then you got a little older and got your first 10-speed. That bike had two sprockets up front and five on the back. In all likelihood, the shifters were a pair of levers connected to your bike frame near the handlebars. As time went on the shifters moved to the handlebars themselves and then became advanced-looking dials right beside the grips. And next thing you knew, instead of a paltry ten speeds on your bike, you were riding a 27-speed mountain climbing machine!
Why all these gears? To make riding faster and easier, of course. Whatever the number of gears your bike has, if it has 2 or more then there’s a basic set-up which almost every bike employs.
First of all you have your front and rear sprockets. These, along with the chain, form the most basic components of the gearing system. To determine your gear ratio you compare the number of teeth on the front sprocket to the number of teeth on the rear sprocket.
If your front sprocket has 52 teeth, and your rear sprocket has 20 teeth, then you’re looking at a ratio of 2.6. The higher the ratio the faster the gear. Typically the gears on the front, starting from the inside, get larger as you move out. On the back wheel, though, the largest gear is typically the farthest inside and they get smaller as you move out.
The next key component for your mountain bikes gears is the derailleur, or derailer. The derailleur is what moves the bicycle chain from gear to gear. A typical shifting system employs both a front and rear derailleur. Without the derailleur you wouldn’t be able to shift gears. The derailleur consists of pulleys and the cage, which is the part which actually comes into contact with the chain. The pulleys are attached to the gear cables. There are separate cables for the front and rear derailleurs. The gear cables connect to the gear shifters.
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430ex / St-e2
Thanks to a hot tip from Johnsen Frameworks, I managed to nab the last 10 derailleur cable reversal pulleys from the fine folks at Paragon Machineworks. Sealed bearings, machined aluminum. Pretty neat.
NOS Campy C-Record pulleys