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You do this with a tool called torque (sometimes called dynamometric) wrench. Without a tool you can estimate it this way: Make yourself familiar with a weight of 1 kg Apply the force with your simple wrench 10 cm from the bolt in question This will give you 1 Nm of force. To get 5 Nm, use 5 kgs of weight or increase length to 50 cm. The math is simple: ...


They aren't necessary, but they are a great help to properly aligning your wheel in the dropouts in an efficient manner. If these screws are adjusted correctly, you'll be able to just put your wheel in, pull it all the way back and tighten your axle nuts and your wheel will be arrow straight in the frame. If not, You'll need to manually align your wheel each ...


If the derailleur is old, the internal spring which is meant to swing the derailleur out away from the cassette might be worn to the point that it is no longer able to keep the derailleur far enough out. You might be able to replace the b limit screw with a longer screw in order to make it work.

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