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The oil/grease has dried up, you've gotten water/dirt/rust inside, it's lost adjustment and/or wore out. Really no way of telling w/ taking it apart.
I'll post a link on bike maintenance for you.
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∙ 13y ago
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What is the smallest number of teeth you can get on a BMX freewheel?
If you have a flip-flop BMX hub, you can put a 14T on the smaller diameter side of the hub. If you have a cassette hub, you can get as small as 11T.
What is the spacer length of a 24inch bmx rear hub?
Depends on the bike frame..
How do you put a 9 tooth back wheel sprocket on a bmx?
change out the hub
What is a freewheel bmx?
There are two different hub designs for BMX, freewheels and freehubs. You need to know what you have if you want to replace the sprocket by the rear wheel.
Can a 9 tooth driver fit on any bmx bike hub?
No. a 9T sprocket will only fit a cassette hub, and not freewheel hubs.
Why does your car make a grinding sound when you turn left?
wheel hub
You have an ABD bmx rear wheel that came fully assembled on an ABD 720 bmx bike can you replace the hub in it with a federal freecoaster hub?
Yes you can.... you can put any hub, spoke, and rim combinations together...maybe a few ecceptions but you can deffinetly do that... just bring the parts to your local shop and have them lace it.
Can you ride a bmx backward?
If you have the right kind of rear hub and good balancing skills - yes.
Grinding noise at front end of engine?
replace hub or wheel bearings.
Can you put a bmx bike in fixed gear mode?
Kinda, sorta. You can certainly (have someone) build a BMX wheel around a fixie hub. I suppose you could somehow disable the freewheeling action of a regular hub too, but I wouldn't recommend it. Putting back pressure on the pedals on a bike that hasn't a real fixie hub can cause the sprocket to unscrew.
Can you put a haro sprocket on any other bmx bike?
Probably. Today BMXes can have either a freewheel hub or a cassette hub, but as long as you stay within the hub type you can move parts from one bike to another.
How do you make a bmx bike have back pedal?
You need the right kind of hub for that. If you haven't, buying a new rear wheel - with the right kind of hub - is probably the sensible option.
