What size socket do i need?

[swampthang]

Im working on a 85 250sx and i need to put new brakes on it. What size is the nut that holds the hubs/brake drum on? Its bigger than any socket i have so i am going to town to get a socket what size is it? Thanks

[atc350xer]

I believe it's 19mm.

[swampthang]

no its bigger i tryed a 22mm the biggest i have and it was too small

[jeswinehart]

I just went out and checked my 85 250es (bigred) and it is 27mm if that may help.

[swampthang]

ive done some research and Ronnies.com parts microfiche the 85 250sx has a 20mm nut and the 86 has a 18mm nut. I found a 24mm socket and its too small. Do i have some kind of rare 1 off machine the nut on mine looks original. any ideas guys?

[swampthang]

27mm sounds about right anyone else know if thats whats on a sx?

[Woodsrider]

ive done some research and Ronnies.com parts microfiche the 85 250sx has a 20mm nut and the 86 has a 18mm nut. I found a 24mm socket and its too small. Do i have some kind of rare 1 off machine the nut on mine looks original. any ideas guys?

Yeah...the size of nuts and bolts is determined by the diameter and pitch of the threaded part...not the size of the wrench/socket that fits it...so the 20mm listed for your axle nut is the diameter of the threaded shaft...not the size of the socket required to remove/install it. A 27mm socket works on my '85 SX ...and my ES is the same.

[whyzee]

Ditto on the 27 mm

[atc350xer]

no its bigger i tryed a 22mm the biggest i have and it was too small

Ooops, I misunderstood... I was talking about lug nuts!

[swampthang]

I took my bike to a friends house that had some bigger sockets. the nut that holds the hubs on is a 27mm thanks for all the help!