Anyone has any ideas as to why that might be? I've tried looking around but I haven't been able to find anything on it. Thanks!

 

My 1st thought is a caliper.

 

Could you elaborate please kind sir?

 

A caliper that has a sticky piston on one side can cause pull when the brakes are applied.

 

i don't see how. that would be feasible on a car with two front wheels, but on a bike with only one wheel i don't think so. otherwise, a lot of bikes with single calipers would be doing it.....

 

I appreciate the info, I'll look into it. Anything helps

 

if the tubes are loss in the tree it can flex to the loss side. sens there is only one axle on the front end.

 

Doesn't make sense to me either. Although OP does not mention what bike he has I suspect whatever it is has dual calipers up front. I will be curious to see the outcome of this as it is one of the few problems I have not encountered.

 

Check rear wheel alignment. If the rear tire is running either right or left of the front wheel it will pull. As state earlier loose trees could cause it if the forks are flexing in the trees. Single or dual disc will not cause a problem as their is only one front wheel unlike a car.

 

Need a little more input OP what exactly does the bike do ? Does it feel like the front ends pulling or the *** of the bike wants to move on you ? Get detailed here otherwise you'll never get an accurate assessment of what's going on , way to many variables .