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Why does my bike thud?
Hi,
I have an old Mongoose Mountain Bike,
When I ride it, it seems to thud every few turns, this happens in the highest gear especially when going uphill or paddling really hard.
The feeling is kind of like change of gear. It rocks pretty hard and then gets free. My guess is that the gear isn't properly aligned and it tries to quickly change gears but can't.
If it helps to know, my gear wire has lost accuracy and it cannot go through every single state (skips from 1 to 3, etc...)
Any help would be appreciated. Thanks....
3 Answers
- bikeworksLv 77 years agoFavorite Answer
Hm. I didn't know that Mongoose made any bikes with paddles. I thought they only had pedals- for pedalling.
If you didn't like that answer you'll like this one even less...
Your bike needs a visit to a bike shop. My guess is that it's suffering from multiple problems:
1) The chain is stetched. Because the chain is stretched
2) The freewheel (gears in the back) have worn and can't hold the chain properly. Because of this
3) The chainrings (on the crank, near the paddle- er -pedals) have worn badly. A lot of this was caused by
4) Poorly maintained, poorly adjusted, or failing shifters and cables.
To summarize, for a skilled mechanic to fix the bike, it will need a new chain, a new freewheel, new chainrings, new cables, and probably a new shifter. You COULD get lucky and the system might just need to be cleaned, adjusted, and relubed but I doubt it.
- ?Lv 77 years ago
could be a lot of things
get the derailleur adjusted first then see if it goes away
wle
