Klein Quantum  53cm Bike - 1990 drive side Klein Quantum  53cm Bike - 1990 non-drive side Klein Quantum  53cm Bike - 1990 sticker Klein Quantum  53cm Bike - 1990 drivetrain Klein Quantum  53cm Bike - 1990 front wheel Klein Quantum  53cm Bike - 1990 cockpit Klein Quantum  53cm Bike - 1990 crank Klein Quantum  53cm Bike - 1990 detail 1 Klein Quantum  53cm Bike - 1990 detail 2 Klein Quantum  53cm Bike - 1990 detail 3
1990 53cm SKU: BRD10225

Klein Quantum 53cm Bike - 1990

Recommended Rider Height: N/A Size Guide
Condition: PRE-OWNED
Regular price

return icon 30-day returns
shipping icon $94.99 RideFast Shipping

This bicycle is backed by the TPC Quality Assurance program.

This bicycle has been professionally serviced by our mechanics.

Moderate wear and tear from cable rub, heel rub, chain, etc.

Scratching on brake levers.

General nicks, marks, and light scratches in paint and on components from use and age.

inspection image

TPC Guarantee

This bike passed a 141-point inspection and received a full pro-tune by our Master Mechanics in our Certified Pre-Owned process. CPO bikes are pristine and ready to ride!

Learn more
returns image

30-Day Hassle-Free Returns

Shop with confidence. Every bike is covered by our 30-day satisfaction guarantee. If this bike isn’t perfect for you, get in touch and we’ll help you find the right bike.

Learn more
shipping image

RideFast Shipping

Bikes ship in our custom RideFast box, and assembly is incredibly simple. Most novice riders can assemble their bike in 5 minutes or less. The tools you need to assemble are also included.

Learn more

Specifications

Year 1990
Brand Klein
Model Quantum
Size 53cm
Frame Material Aluminum
Weight 20 lbs 5 oz
Fork Klein, Steel
Brakes Shimano Dura-Ace 7400, Caliper - Side Pull
Shifters Shimano Dura-Ace 7400, Mechanical
Front Derailleur Shimano Dura-Ace 7400
Rear Derailleur Shimano Dura-Ace 7400
Crankset Shimano Dura-Ace 7400, 52/42t, 170 mm
Cassette Shimano 600 6200, 6spd, 14-25t
Chain Sachs
Handlebar Sakae CT, 42 cm
Headset Shimano Dura-Ace 7400
Stem Sakae Ringyo 25.4 mm x 100mm, 17°
Seatpost Rind Excel, 27.2mm
Saddle Bontrager Affinity 3
Wheelset Mavic MA40, Specialized
Front Tire Michelin Krylion, 700C x 23c
Rear Tire Michelin Krylion, 700C x 23c
QUALITY YOU CAN TRUST

“I love this company! My beautiful bike arrived promptly, was packed brilliantly, and tuned perfectly. It was exactly as described.”

— Kari K.

OVER 1,500 FIVE-STAR REVIEWS

“In the past month, I purchased a road bike and MTB from TPC. Very happy with the price and condition of both bikes! I was riding the bikes 10 minutes after I received them.”

— David H.

Newsletter Sign Up