Sprockets dating game
How many of us bought those things, thinking we could recreate the sample looks on the package, only to wind up looking like Susan from the Sprockets Dating Game skit?! For brevity, I won't talk about the witch, but I am staunchly refusing to talk about the scarecrow people. I did NOT buy them, because my lovely wife was not with me and I like her to "ok" all my Halloween purchases, as I have questionable taste and I know it. Despite it having a tissue paper and balsa wood feeling of whatever-the-opposite-of-"sturdy" is, I would have bought the one on the left (checking with my wife be damned! I don't really "get" what these bottles are supposed to be, and I don't like them.
Modern versions of this design mean riders can now have up to 11 rear sprockets, but gears have not always been universally welcome.Centering the tension over the bearing in the torque limiter often requires that an additional pocket be machined into the drive attachment, so that the torque limiter can be sunk into drive attachment to a depth that places the bearing underneath the drive medium (i.e. R W offers an allowable load centering range, in terms of a distance from the end face of the torque limiter.This load centering range, dimension “S” from the R W safety couplings catalog, is the range in which the center of the chain or belt must reside for smooth, sound operation.With the gear cable disconnected, gently pedal forwards until the chain drops onto the smallest sprocket.Find the cross-head screw towards the back of the derailleur marked H.This helps to ensure that the driving and driven portions of the torque limiter are properly guided within the rotational axis after disengagement.
In order to protect the bearing from moment loading, the belt or chain tension (2) needs to be well centered over the bearing, unless it will be supported by an external bearing, as is the case in offset mounted systems.
In 1937, Henri Desgrange, founder of the Tour de France, stated, ‘I still feel that variable gears are only for people over 45.
Isn’t it better to triumph by the strength of your muscles than by the artifice of a derailleur?
The process is really straight forward, and can usually be performed in any machine shop with a milling machine and a lathe.
Once the correct torque limiter body size has been selected, based on the required bore diameter and disengagement torque, it must be compared dimensionally with the size of sprocket being used, in order to determine whether it can be mounted directly to the torque limiter, or if it will need to be offset mounted.
The number of stars that emerged from this show is mindboggling by itself: Not coincidentally, many of these cast members are also veterans of The Second City, a world-class improv theatre troupe in Chicago and Toronto.