We did a lot of riding at H-M over the weekend. On the LAST ride, on a steep hill my daughter's 250 Trailblazer lost traction and made for a very heart-stopping moment for her (and the wife). I was right behind her and had to bump her up with my 800 Sportsman.

As I was bumping her I noticed ONLY the right rear tire spinning on her machine (both were turning but only the right side was being driven)!!

I pulled the left hub off today and the splines have been reduced to black dust that now fills the splines on the axle. The inside of the hub is completely smooth!!!

I have never see anyone strip the splines from an axle hub before and she rides it but doesn't get crazy (maybe previous owner did?).

So I'm not on the hunt for a new hub but wondered if anyone else ever experienced this (a search turned up nothing)????

 

How many hubs you want?PM me

 

I have an answer for you LOL I have spun a rear hub on my old 92trail boss. not sure how it happened or how it could happen but it did. not to worry its a cheep fix. and rear hubes are easily found.

 

The 2 things that cause stripped hubs are loose nut and landing hard.
2 things to prevent this is check tightness and when you put one on coat the threads with silicone

 

I`m sure mine the hub nuts were tight, now on the other hand landing hard...I did push it past its limits. thanks ftwflh

 

ftwflh,

Check your PM's...thanks!

 

How does coating the threads with silicone help?

 

I don`t know the answer Twin LT80`s, but I be happy to try and guess and correct me if i`m wrong.
The hub`s base metal is Aluminum, bare Aluminum will naturally oxidize in air alone. The axle is hardened steel, when Steel and Aluminum are put together the molecules attack each other and in most cases the weaker metal of the 2 loses the fight and brakes down. So my guess is by coating them with silicone makes a thin barrier between the 2 metals as well as seals out any possibility of oxygen entering any small cavity.
I might be wrong but it sounds good to me

 

That and it does cushing landings a little.In the beginning Polaris used steel hubs and back the axles were breaking then they went to aluminum and the spline strip saving the axle.

 

ive gone through several on my magnums over the years.Iactually now carry a spare.riding on hot top will kill them quick,because polaris is positive traction,somethings gotta give