alloy wheel fitting

[jim1.9dci]

just wandering, i have just won a set of 18s on ebay they are 4 x 100 et 38 do i need new bolts or will the 1s holding my 17 inch nervasports on do the job? also is there a need for any spacers ,thanks

[steve the postman]

pm the finn he seems to be the boy for wheel advice
Steve

[TheFinn]

Hard to say without seeing the wheels in person, but most aftermarket wheels are drilled for conical bolt seats with a 60 degree cone. The Renault bolts used with the Nervasports are just this type, with the nice addition of a separate spacer under the bolt's head that prevents the bolt from eating into the soft alloy on tightening.

(Another bolt type is a sphere-seated one, although these are more commonly used on steel wheels. They shouldn't be used for wheels with conical seats, or vice versa.)

Just make sure the Renault bolts are long enough for the new alloys: Insert a bolt through the Nervasport bolt hole and measure how much thread is visible behind the wheel. Then insert the same bolt through your new wheel and make sure the visible thread is at least as long as with the original wheel. Then you can be sure your install is safe.

You won't need any wheel spacers. But you do need to make sure the centre bore on the wheel fits the Renault 60.1mm hub flange. Aftermarket alloys usually have separate, changeable centering rings to match different hub flange diameters of different car makes. Obviously, if the centering ring is too small you won't be able to fit the wheel. But if it's too big you shouldn't fit it then, neither. If the wheels come with too big centering rings, you should be able to buy correct sized ones from most tyre shops, just take your wheels there for measure so they can see how big the outer diameter of the ring needs to be.

Hope this helps.

[steve the postman]

See what i mean??????
Steve

[jim1.9dci]

thank you very much , that is a big help! the wheels im buying are off a vauxhall so i need to check that bore diameter