I've got a problem with my front brake so that it hobbles when I apply breaking pressure. I simply procrastinated in going to the bike shop to get it fixed and just used my rear ones instead. This spelled trouble for my bike when I put all my braking power unequally on the rear rim. Now I have the front brake with a really bad drag and a rear rim that is being worn down with the excess braking pressure. I'd adjust the brakes myself but just don't know how. I have what would be a standard alloy V-brake for mountain bikes. Could anyone help with this problem?