New answers tagged mechanical
The derailleur is not a particularly strong part, and in fact when it/its hanger breaks it can often save your frame. Some common reasons for it breaking are: Hitting an obstacle (e.g. tree branch) Going into the spokes (badly set low limit screw or the derailleur was wobbling enough for some reason to get caught in the spokes) Chain too short. What ...
GCN do some great how to videos and will possibly be a good resource for you in your general overhaul of the bike. Here is one specific to you need for this post
Check out the Stealth Hub from True Precision Components; as opposed to using pawls these hubs use a roller clutch. They are completely silent when the coast, the engagement is instantaneous and the cost is astronomical ;) I recently built myself a new rear wheel for my singlespeed mountain bike using one of these and really enjoy coasting in silence. ...
I have on my Kona Unit 2013 the stock "Formula DC52" - it's very quiet.
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