I had a similar problem a few years ago on my TT600, I had not been riding long and it was my first bike. It was the first time I had changed a sprocket and just used the old bolts and didn’t use loktight, now that may have been ok but when I tightened them I tightened them on the Allen Key side. The problem there is that with the tapered head, the bolt will bind on the coutersunk sprocket giving the impression that they are tight when they aren’t. I realised this when I fitted the new bolts, after tightening as hard as I could on the allen key side I found I could get 1/2 to 3/4 turn more with the spanner on the nut side.
The end result for me was a rattle that I couldn’t find the source of until it was too late, by the time I realised the problem I was down to 2 bolts and at that time always rode alone and never carried tools. I was able to do one up finger tight but couldn’t turn the other one and tried to nurse the bike home (20 odd k’s) eventually I lost another bolt and the last bolt tore one of the tabs off the hub. I ended up building up the hub with weld to make a new tab which was still doing it’s job when I sold the bike 2 years later.
So check your nuts are tight not the bolts if you
every time I change a rear sprocket I also change the bolts and nuts. when using the loctite I use the high strenth shit and also put it under the countersunk head just to be sure.
I think the cush drive hub would have a lot to do with the bolts being goood as long as they have.
every time I change a rear sprocket I also change the bolts and nuts. when using the loctite I use the high strenth shit and also put it under the countersunk head just to be sure.
That’s spot on that. Should be budgeted in with all chain/sprocket upgrades. I use the stud locker loctite.
At very worst before you take off for a ride grab the rear sprocket with your glove and give it a wiggle. It will either be tight or loose.
Like TB said, standard is 50 teeth so the sprocket has been changed since new. For my 2 cents if it came loose on the very first ride then dealers responsibility. After that its riders fault. Should be checking or notice the god awful noise. In my experience with other peoples looses sprockets they tend to come very loose within one ride.
Didn’t know about the bolt changing though. I’m on my 3rd rear sprocket on the ktm and did more than that on the wr and have never bought any bolts yet. They have never come loose yet, touch wood.
