20 Most Recent Mongoose 20-Inch Gravity Games BMX Freestyle Bike - Page 7 Questions & Answers

Impossible to tell you with out seeing the brake.

However, the brake can be repaired. I would suggest taking into your local bike shop so they can assess what is causing the sticking brake, it could be a very simple fix, such as adjusting the spring tension, to a more complicated fix that involves replacing broken parts. Some brake systems do not have available replacement parts and in those cases you would have to replace, but that is less common.

If you can, take off your front wheel and prop the bike up so you can see the brake working while you squeeze the lever, see if the pads move in and out. that is the first step to diagnosis. If they don't return, then look for a round adjustment knob on the side of the brake and see if that moves the pads in or out, if that knob does nothing that is most likely your problem.

You'll need to take it to a welding shop to have it properly repaired. Look at how much a similar "used" aluminum bike frame cost, then use that as a gauge to set a cost limit. Say for example a similar used bike frame cost $100 from a bike shop. If the welder charges $80 or more, then you might as well spend the extra $20 and replace the cracked bike frame instead of getting it welded. Of course, you'll need to take the parts off the cracked bike frame and transfer them to the used bike frame, assuming you know how to do it yourself. If you need to pay a bike shop to do the job, then having the welder repair the crack is cheaper.

There are bearings on both sides, you need a special tool to remove the crankshaft.I'd suggest you get someone who knows how to do it,give you a hand. The tool can be purchased at any bike shop. not sure for how much. Good Luck.

mine use to do that too, try lock tight in the nut after tightin on the nut make sure you put enough and make sue its tight it works till you need to take the pedal off it worked for mine