BONANZA PROFESSIONAL - Switzerland 1974 - road bike

list number	391
frame number	6653 on left seat tube
frame/fork	Colner (?), Columbus
crank/sprocket/chain	Ofmega gold 55/42t/Shimano 5-speed freewheel/?
derailleur (rear/front)	Crane/Dura Ace
wheels (hub/rim/tire)	Dura Ace 35h LF/Mavic Record du Monde de l'Heure 700/Hutchinson Supersprint tubulars
brakes/levers	Dura Ace/Dura Ace
bar/stem	3ttt Mod. Grand Prix 38cm c-c/3ttt 90mm c-c
saddle/post	Arius Special/SR Custom 27.2
paint/chrome/decals	royal blue/front lugs, fork crown, stay and fork ends/Bonanza
plus	Interview with Bonanza founder Eric Grieshaber
geometry	seat tube 54cm c-c (55.5cm c-t), top tube 55cm c-c, weight 10.1kg
rating	2-3
market value	24/01 US$ 600 →