Columbus SLX helical ribs

[rogerzilla]

Finally got a fairly non-rusty fork where they show up in a photo. Needs James Bond at the other end.

 

[fossyant]

I'll have to take pics of mine - pristine ! Helical ribs are on fork steerer, and at the BB on the down tube, seat tube and chain stays. Adds 25g over SL apparently and a bit stiffer.