Bicycle 20’’ TN24R74

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Description

Frame: Steel, Front TIG welding, Rear CO2 welding
Front fork: Steel
Stem: Barbore 25.4, EXT/40mm, safety Line 65mm
Brake lever: Plastic, Φ22.2mm, 2.5 finger, with adjust screw
Front brake: 81#, axis core M6×48mm, arm 3.0mm, gray brake pads
Rear brake: 81#, axis core M6×48mm, arm 3.0mm, gray brake pads
Chainwheel / Crank Steel:
BB set: Sealed BB with bearing length 113L, thread match the 68L BB
Flywheel: 1/2″ × 1/8″ × 18T, one speed, full ball
Rim: 14G × 28H, A/V, 160g alloy
Tire: 20″ × 2.125
Inner tube: 20″ × 1.95, A/V
Training wheel support: T-type leg 2.5mm, with Positioning pad 2.0T