I enjoy riding vintage bikes for fitness and century rides. I've been seeking Columbus SP or SPX frames for regular usage. SP and SPX have larger wall thickness and the tubeset is about 20% heavier than SL, adding about a half-pound. I'm a Clydesdale, and really like the stiffness of these frames.

The Serotta Nova Special X was built in Columbus SPX during the 1980's. The geometry is great fit with a 64cm C-to-T seat-tube and a 60 C-to-C toptube. I'm using a 32 spoke wheelset featuring Shimano 600 tri-color hubs and Mavic Open Pro rims. The rear wheel was rebuilt and a Shimano Deore XTR eight-speed 12-28 cassette was installed. The Crankset is a Suntour Superbe with 52, 42 & 30 chainrings, the pedals also are Suntour Superbe. The rear derailleur is a Shimano long arm 6207 GS 600 series, the front derailleur is a Campagnolo for triple. Shifters are NOS Shimano eight-speed 600. The Brakes are Shimano 105 and the levers are NOS Shimano 600. Currently I'm using new 700x23 Vittoria Rubino Pro tires. The cables and guides are new. The headset is a rebuilt Dura Ace and the BB is rebuilt Shimano.