comment on motorcycle rigging -

apologies, i think i posted this in the wrong animation forum here, so i x-posted it on blendernewbies (to no avail of course)

http://static.ivanlazarte.com/motorcycle-rig.png

comments on rigging? i have a large armature so it rotates around the front tire for the main body and the two tires rae controlled by the corresponding bones…

  • when i pose the tires to test them i see bone isn’t exactly in the center. is there an alignment tool i’m missing?
  • does the fatness of the bone matter? does the length matter actually? what if my main bone was small?

thanks for your advice!