Technical PCD conversion

[CLXCraig]

Is it (easily) posible to change a 98pcd hub to 100pcd... I think I read in the tipo section about spigot rings and wobbly bolts... which doesn't sound entirley convincing...

If it is possible to convert... can they then be easily converted back?

Craig.

 

[firstcar-Y10]

seem OK actually. don't fancy messing about with spigots but as long as the centre bore is right the wobbly bolts are quite a nice solution. I have 4x98 rims on the punto anyway but since I had to buy bolts anyway I figured I'd get them and leave my options open later. They are not as alarming as they sound, just a floating tapered washer that seats in the alloy with a flat headed bolt tightening down on it. Had them on for over a year now with no probs with working loose or anything and the wheels are still attached!!!

 

[CLXCraig]

Thanks Andrew, whats still puzzling me, i that if the hub is 98, and the wheels 100... will the holes not be out of line.. or am i missing the purpose of the wobbly bolts.. Nick has just posted he has some for sale so hopefully, fingers crossed, there in a good condition and he offers a fair price

 

[firstcar-Y10]

yup, that's the point of the bolts. there's usually enough clearance in the bolt holes on the wheel to still get the nut into the hub, it's only a couple of mill out. With normal bolts though when you tighten down on the tapered seat it will force the head of the bolt out so you finish up with wrecked seats and/or bent or sheared bolts. doesn't work! On wobble head bolts that tapered section is loose on the shaft of the bolt so as you tighten up, it slides out slightly to settle properly on the seat and gives a flat top for the bolt to tighten onto, slightly off centre, but the bolt is then pulling straight.