Mountain bike tire wont spin?

Question

Well.. it does but I need to put just about all my weight on it for it to... I dont kno much about mountain bikes... Only BMX bikes.. so... who can help? I dont kno if I have a missing part or the tires is to tight.. Or just the wrong setup?

Answer 1

It may have a broken bearing. Take it to a bike shop and have it checked.

Answer 2

1. bearings could be too tight

2. brakes could be too tight

3. wheel could be out of true, making the brakes rub

4. axle could be bent/broken

5. wheel could be crooked in frame, making tire rub on chainstay

6. wheel might be in frame correctly, but is mis-dished and rubbing on frame

7. tire might be too big for frame

Does the wheel spin on its axle if it's out of the bike? That should get you started troubleshooting.