Weird sound, please help

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12/1/2013 2:20 PM

Right after I tightened my chain, my bike has been making this weird sound like metal on metal when the cranks move. I have no idea what it is, so if anybody knows anything about what it is please help. Here is a video

I am pretty sure it is either in the bottom bracket or hub.

i ride for fun

12/3/2013 1:47 PM

i couldnt hear anything wrong in the video unless that loud noise wasnt ur hub, but try putting on ur chain abit looser but tbh i rode my bike with a shit load of wierd noises coming out of it and eventually it stopped


12/4/2013 12:39 PM
Edited Date/Time: 12/4/2013 12:40 PM

right from the start I can tell you that your chain is WAY too tight.

These are the possibilities I can think of:
1. Your bottom bracket bearings are ruined because your cranks are way too tight.
2. Your tightened your bearings on your rear hub too tight (either the lockrings that press up against the bearings or the axle nuts are so tight that they are putting too much pressure on the bearings.
3. Your chain is so tight that its putting uneven pressure on the driver bearings, causing them to flex.

Take everything apart and put it back together without over-tightening stuff.