Registered Forum User
Mille
Posts: 262
Join Date: May 2003
Location: Uxbridge, West London
I bought my number boards and numbers from Demon Tweeks.
They cost next to nothing (19p per digit I think) and they sell the 7" motorcycle numbers.
You can cut their rectangular boards to any shape you want.
New Era's booklet which comes with the membership pack also gives guidance on numbers/stroke width/edge distance etc.