View Single Post
Old 10-31-16, 02:23 PM
Senior Member
Join Date: Nov 2004
Posts: 22,899
Mentioned: 611 Post(s)
Tagged: 1 Thread(s)
Quoted: 4542 Post(s)
Likes: 0
Liked 2,695 Times in 1,697 Posts
The helically reinforced steerers were used on all full SL/SP and above tubesets (i.e SL/SP, SLX/SPX, TSX, MAX, EL, Genius, etc.). Some sources but not all, refer to it being used on Cromor, so it may have been era dependent. The 59 is probably a reference to the frame size. I'm not sure about the P and 33, though the P may represent Prestige, which was the Columbus SL/SP model. It could also represent a heavier gauge fork, such as SP, as opposed to lighter SL.

Edit: 58-60cm was the frame range where most builders would transisition from SL to SP and some would even use SP gauge in blades, down tubes and chain stays on smaller frames.

Last edited by T-Mar; 10-31-16 at 02:34 PM.
T-Mar is offline