oldgreyandslow
Guru
- Location
- Farnborough
6000 miles for a wheel set? Really? To say that surprises me is an understatement, my old mavic MA2's with veloce hubs on my winter bike lasted about 25000 before I changed them and that was only because I changed to the fulcrums on my bianchi and used the ambrosio's from there on the winter bike.
I can only assume I didn't press the bearings in far enough although they looked pretty well fitted to me. I used a piece of studding, a 20mm socket one end and a 21mm the other, the non freehub end needed the smaller socket, two nuts and washers. I fitted the bearings in place and tightened the nuts down so pressing the bearings in. I kept tightening the nuts as far as I could before I felt they couldn't go in any further without damaging anything. Looking through the bearing/hub the centre tube seemed in line with no gap, so it looked, as far as I could see, exactly the same as when I removed it.
Fitting the freehub was a bit fiddly but pressing two of the three pawls in with a thin screwdriver was enough to slot it home, there seemd to be a slight gap between the inner face of the freehub where the first sprocket sits and the end but that appears to be where the spoke protector would sit and i removed that at the time I fitted the wheels a year ago.
So I was pretty certain I had it all lined up and correctly in place.
I fitted the cassette sprockets and spacers exactly the same as I did when I fitted them to the wheel when I replaced the cassette earlier in the year, except this time it seems as if the lockring is sitting proud of the locknut.
When I fit the same cassette and lockring to the old wheel the locknut is further out than the lockring.
I'll try new bearings yet again!
I can only assume I didn't press the bearings in far enough although they looked pretty well fitted to me. I used a piece of studding, a 20mm socket one end and a 21mm the other, the non freehub end needed the smaller socket, two nuts and washers. I fitted the bearings in place and tightened the nuts down so pressing the bearings in. I kept tightening the nuts as far as I could before I felt they couldn't go in any further without damaging anything. Looking through the bearing/hub the centre tube seemed in line with no gap, so it looked, as far as I could see, exactly the same as when I removed it.
Fitting the freehub was a bit fiddly but pressing two of the three pawls in with a thin screwdriver was enough to slot it home, there seemd to be a slight gap between the inner face of the freehub where the first sprocket sits and the end but that appears to be where the spoke protector would sit and i removed that at the time I fitted the wheels a year ago.
So I was pretty certain I had it all lined up and correctly in place.
I fitted the cassette sprockets and spacers exactly the same as I did when I fitted them to the wheel when I replaced the cassette earlier in the year, except this time it seems as if the lockring is sitting proud of the locknut.
When I fit the same cassette and lockring to the old wheel the locknut is further out than the lockring.
I'll try new bearings yet again!