Hmm, in the great chariot dispute of 2011 the question of how spokes in ancient British/Celtic times has surfaced and I found the picture below which might show this. It is from a reputed book so I hope it is accurate. I do like the intricate golden work done on the spoke. The chariot itself looks plain weird - much more like someone stole the local baker's cart and went for a joyride...:
Probably more detailed than I could do on the small Pendraken Chariots I bought from Ebay but it does provide an excuse to use a different colour than brown for the spoke...