Originally Posted by
Daveyates
At last i have a proper answer for you!
Here is a order form for a PY10 and it includes options about which type of Reynolds you would of wanted.
This is for the slightly newer PY10 but i would imagine the older order form would of been the same.
http://www.velo-pages.com/main.php?g...geViewsIndex=1
Thanks! It does look like you could chose between "thick" and "light" Reynolds tubes. Great reference!