Parts for car recovery and other

In my continuing drive train saga I learned about the derailleur cage and chain wrap capacity. Chain wrap capacity is how much chain the derailleur will take up as you shift through the gears. Sheldon Brown has a good article on it here - http://sheldonbrown.com/gloss_ca-g.html#capacity The derailleur cage is that long part on the rear derailleur through which the chain passes containing the two little pulleys (jockey and tension pulleys). From my understanding, generally the longer the cage the more chain wrap capacity your derailleur has. , however, having problems with the jockey pulley riding on the largest gear (28t) in the cassette. This wasn't so much a problem in riding/shifting but would eventually prematurely wear out the jockey pulley. Normally the "B" screw on the back of the derailleur could be adjusted for this but mine was already at it's limit. I found a solution (Downgearing Your Bike) in Sheldon Brown's site. Use a larger screw or take the "B" screw out, turn it over, and screw it in again. You gain the added few millimeters from the head of the screw. I'm sure there is a limit to this in the derailleur but it worked for me. This is the place where I ramble on about cycling, my rides, how I felt riding, length of the ride, commuting, equipment and so forth. The latest, lightest, carbon thingiees do not impress me. They sort of bore me. Show me a classic, steel, lugged frame, a dutch bike or cargo bike. I'm not an elite cyclist. I'm not a hipster. I'm not a messenger. I'm a confident rider with a zeal for the bicycle.

Source: Brian's Bicycle Banter