[reelfast19]

Is it possible to upgrade the rear brake on a 86 kx125 to a disc? what year did they switch to a disc in the rear?

 

[stevied645]

find out if the swing arms are the same if not you would prob have to get a newer swing arm which should fit no prob i doubt you swing arm will have the slides for the caliper get a swingarm and wheel, mastercylinder and hoses etc from a newer model and you should be fine you should just have to check if a newer swing arm would fit or not

 

[don46]

86 had rear disc, it was the first year for rear disc.

 

[reelfast19]

my 86 has some weird drum pressure plate mechanical looking dealy, it seems like its either all locked up or nothing, and the 87 looks the same way.

 

[don46]

Either someone changed yours to the "drum pressure plate mechanical looking dealy" or you don't have an 86. 85 had drum brake, 86 and on was a disc. post a picture, bet its a 85.

 

[reelfast19]

I guess then your right, it must be an 85 I bought an "86" and a "87" for parts but both have the drum brake on the rear. would a swing arm from a real 86 or 87 bolt right on?
right now my bike is in pieces, so i cant put up any pics.

 

[YurFatMom]

I guess then your right, it must be an 85 I bought an "86" and a "87" for parts but both have the drum brake on the rear. would a swing arm from a real 86 or 87 bolt right on?
right now my bike is in pieces, so i cant put up any pics.

Well, you can post a pic of your rear brake.