1988 Schwinn Circuit. Flatbar Rebuild. It came with the original Shimano Sante groupset except the brake levers. I removed all but the downtube shifters and replaced it with Tiagra 4700 I had laying around. Spaced and aligned rear dropouts to accommodate a 130mm hub spacing.
Frame:
1988 Schwinn Circuit
Columbus Tretubi Steel
Fork/Headset:
Schwinn Cromo fork with Shimano Sante Headset
Crankset/Bottom Bracket:
Oval 500. 172.5mm cranks. Praxis M30 BB
Pedals:
Shimano M520
Drivetrain/Cog/Chainring/Chain:
Shimano Tiagra 4700 / Simano 11-28 / Praxis Levatime 52/36
Derailleurs/Shifters:
Shimano Tiagra RD-4700 SS, Shimano Tiagra FD-4700 / Shimano Sante Downtube shifters. (right shifter switched to friction)
Saddle/Seatpost:
Bontrager Montrose Elite / Ritchey Comp 27.2mm alloy
Brakes:
Tektro road calipers
Front Wheel/Hub/Tire:
Shimano RS100 / Conti GP 4000 SII 25c
Rear Wheel/Hub/Tire:
Shimano RS100 / Conti GP 4000 SII 25c
Accessories:
Origin8 Brake levers.
Added by J_Francis. Last updated almost 2 years ago.
As of almost 2 years ago, J_Francis has indicated that they no longer own this bike.