4130 chromoly main triangle / hi-tensile steel rear stays
Fork
Mongoose
Fork material
Chromoly, unicrown crown
Drivetrain
Component group
N/A
Shifters
N/A
Front derailleur
N/A
Rear derailleur
N/A
Crankset
1-piece chrome-moly 6 1/2", 44 teeth
Rear cogs
1-speed, 16 teeth
Chain
KMC 410, 1/2 x 1/8"
Pedals
Mongoose alloy
Brakes
Brakes
Shimano MJ-II brakes, Mongoose alloy levers
Cockpit & contact points
Headset
1" YST Sealed Tech
Handlebar
Mongoose Expert
Handlebar extensions
N/A
Stem
Mongoose alloy 4-bolt
Saddle
Mongoose
Seatpost
Polygon PM-610, 26.0 mm diameter
Wheels & tires
Hubs
Alloy
Rims
Araya MP-22, 36-hole
Spokes
Steel, straight gauge
Spoke nipples
Brass nipples
Front tire
Front: 20 x 2.10" Mongoose Goosebump, Rear: 20 x 1.80" Mongoose Goosebump
Wheel size
20" wheels
Geometry · Legacy reference
Top tube
503 mm
Head-tube angle
73°
Seat-tube angle
71°
Chainstay / rear center
374 mm
Wheelbase
930 mm
Fork offset / rake
26 mm
Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 25, 2026.