Black w/chrome-plated fork, chrome-plated, flat blue w/chrome-plated fork
Sizes
Boys
Frameset
Frame construction
TIG-welded
Frame material
Hi-tensile steel
Fork
Diamondback
Fork material
Hi-tensile steel, unicrown crown
Rear shock
N/A
Drivetrain
Component group
N/A
Shifters
N/A
Front derailleur
N/A
Rear derailleur
N/A
Crankset
1-piece 6 1/2", 44 teeth
Bottom bracket
YST BB 621
BB shell width
American 24tpi
Rear cogs
1-speed, 16 teeth
Chain
Taya 410, 1/2 x 1/8"
Pedals
Platform, resin
Brakes
Brakes
front/Chang Star 879AG cantilever rear brakes, Chang Star 257A levers
Cockpit & contact points
Headset
1" YST steel
Handlebar
Hsin Lung steel
Handlebar extensions
N/A
Stem
Hi-tensile steel
Saddle
Diamondback padded
Seatpost
Pillar, steel, 22.2mm (7/8 inch) diameter
Wheels & tires
Hubs
Front: King Kong 337, Rear: Kung Ten steel, nutted
Rims
Kin Lin RT-6n, 36-hole
Spokes
Shuhn Lih steel, 2.0mm straight gauge
Spoke nipples
Brass nipples
Front tire
20 x 1.75" Cheng Shin C-892
Wheel size
20" wheels
Geometry · Legacy reference
Top tube
490.2 mm
Head-tube angle
75°
Seat-tube angle
70°
Chainstay / rear center
363.2 mm
Wheelbase
886.5 mm
Fork offset / rake
30.5 mm
Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 27, 2026.
Bicycle Archive · Specification report