Front not braking the same as rear???

[FrogPrince82]

Hi All,

Hoping someone might be able point me in the right direction as to what may have happened?

Running the 22-4 in full 4wd and at the start of the meeting, when I pulled the brake, the front and rear wheels stopped at the same time and rate. 4 races in and I noticed that when pulling the brake now the front wheels decelerated at a considerably slower rate

Before I start pulling everything apart, has anyone else noticed or had this happen and if so what's worn or changed to cause it?

Thanks in advance for any help