Does anyone know what the center bore is on the 2005 Bonneville wheels? I'm having custom adapters made to fit 17" 5-spoke Bonne wheels on my Alero and need to know what the center bore is so I can have them properly made hubcentric. Thanks.

the bolt pattern is 5x115, if that is what your after, not really sure

Thanks, but no. I already know the bolt pattern and the offset. I'm looking for the center bore on the wheel. The diameter of the hole which slips over the hub. Even though I'll be using the 115 wheels on a 115 bolt pattern, it is critical to have the spacers created to mimic the hub so the wheel can slip onto it and keep it centered, balanced and strengthened. The Alero has a 70.1mm center bore. I believe the 05 Bonne is the same, but I'm having trouble finding the specs to confirm it.