Just wondered if this was normal..... It's possible on my bike to rotate the hub possibly 1.5 degrees in the direction of travel before the rear wheel begins to rotate. Does anyone else have this issue, or is it normal?
Forgot to add, I'm thinking it could be the drive dogs that insert into the rear wheel are worn, or the rear wheel is worn where they go in.
The pins locate the wheel on the hub. Is your wheel nut tight? The hub is secured in the swingarm by two bolts at rear of swingarm. Are the cush drive rubbers intact in the sprocket carrier?
Sorry, probably not being clear. When I say 'the hub', I mean if I turn the sproket there is an approx 1deg of rotation before the wheel begins to turn. The brake disc moves in time with the sproket. Only the wheel has to "catch up".
Doesn't sound normal to me ! Yes there may be a gnats play sprocket to hub but once the hubs turning discs turning the wheel should be. I'd whip the wheel off and check its locating properly ( it's not unknown for people to put the locating pins in the wrong 4 holes the elongated ones) check the correct holes aren't damaged and make sure she's torqued up correctly
My bikes not here at the mo to check but I'd say not normal at all. If cush drives were shagged you'd get a bit of movement , but the brake disc and wheel are bolted together, for obvious reasons. If ones moving without the other I'd be questioning the wheel nut torque too.
As mentioned above the wheel is located on short pegs on the offside hub, with the large wheel nut correctly torqued there should be no movement. On the hub nearside you have cush drives which are known to wear and break up. If this happens then they tend to back off into hub and damage the notched chain adjuster that sits behind it and you will notice filings falling onto the rear wheel and accumulating around the hub area . If it goes too far then it wrecks the hub. You could also have a slack nearside hub nut so it is best to check it and torque it to the correct figure. If it were loose there could be some slackness on the splines of the rear hub spindle, which is what could be possibly happening, and if it is loose then it will only get worse and damage the spindle and if it is already loose then it may have already done so. If you have a quick change sprocket carrier then if the sprocket holding nuts\bolts come loose then you will get movement of the sprocket possibly. The rear disc is held by four large headed allen bolts to the hub. These are loctited from new and rarely touched and they are very difficult to remove so it is unlikely they have come loose unless someone has changed a disc or removed them for some other reason There should not be any movement on either side of the hub, so it sounds likely that something is amiss. The whole hub area should be checked for safety and peace of mind. If something were to break up or go disastrously wrong it could do severe damage to the bike and possibly yourself, I would consider what price is my life and safety worth!!!! It could be nothing but it also might be something and checking it will cost nothing and may save money it you do nip it in the bud before it goes wrong.
This is the correct answer. There are only 2 places you should get play. Worn Cush drives or worn holes/wrong holes on the wheel If as you say the sprocket and disc move exactly the same then the problem is in the wheel. Either it's loose or the locating holes are wrong/worn
Normally if you put the wheel on incorrectly you will note it does not seat fully on the hub. You will still be able to torque the wheel up but the wheel will be slightly out of alignment at the rear. Probably worth whipping the rear wheel off first and checking the back of the wheel. Do you have Marchesini's?
Peroni can I politely ask you don't add to this thread any more. You seem to have a fundamental lack of knowledge on how the whole rear hub assembly is assembled.
Standard Marchesin's were 5 spoke or 10 if you have aftermarket ones, but they are quite rare. If you do have 7 spoke wheels then maybe you need to examine them for correct fit etc.
Sorry it's a five spoke. Also on closer inspection, the sproket does not move with the brake disc, both the wheel and the brake disc have to "catch up".
