Klein Quantum 1990 - Original Big Tube 6061-T6 Welded Frame And Group - $450 (Whitefish)

Klein Quantum 1990 - Original Big Tube 6061-T6 Welded Frame And Group 1

Klein Quantum 1990 - Original Big Tube 6061-T6 Welded Frame And Group 1 thumbnail

Nordic Loop near East Lakeshore Drive

bicycle type: road

frame size: 56 cm

wheel size: 700C

bicycle frame material: aluminum

suspension: none (rigid)

brake type: caliper

handlebar type: aero

electric assist: none

condition: excellent

make / manufacturer: Klein

model name / number: Quantum

serial number: QU6BD

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Exceptionally clean and original Klein Quantum road bike in Pearl White. Built in the USA. Shimano 600 and Dura-Ace Group, 600 Brakes, Brake Levers, Rear Derailleur, Seat Post and Crank 53-42, Dura-Ace front and rear Hubs, and front Derailleur, Campagnolo Omega Strada Hardox Rims 700C 32 Front, 36 Rear spokes, Sachs-Maillard 13-14-15-17-18-19-21 Freewheel, Cinelli Handlebars and Stem, Tange G-Master Headset, Continental Gatorskin tires 28mm. This bike has an aluminum fork, and indexed Shimano SIS downtube shifters with external cable routing. Most likely a 1990 build. Not original the Bontrager saddle. One bottle cage on downtube included, no pedal included.

post id: 7942292871

posted: 2026-06-20 16:53

updated: 2026-07-17 22:20

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Klein Quantum 1990 - Original Big Tube 6061-T6 Welded Frame And...

Exceptionally clean and original Klein Quantum road bike in Pearl White. Built in the USA. Shimano 600 and Dura-Ace Group, 600 Brakes, Brake Levers, Rear Derailleur, Seat Post and Crank 53-42,...