Bicycle Archive · Specification report

1997 TNT M-80

Velopedia Archive ID 67120

Overview

Model year	1997
Brand	TNT
Model	M-80
Bicycle type	BMX
Archive ID	67120
Original MSRP	$319.95
Colors	Black, chrome-plated, yellow
Sizes	Boys
Weight	23 lb

Frameset

Frame construction	TIG-welded
Frame material	True Temper chromoly
Fork	TNT Pro
Fork material	True Temper chromoly, 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 chromoly 7", 44 teeth
Bottom bracket	Yst
BB shell width	68mm Threadless
Rear cogs	1-speed, 16 teeth
Chain	KMC 410, 1/2 x 1/8"
Pedals	Wellgo LU-313

Brakes

Brakes	Shimano cantilever brakes, Dia-Compe Tech 4 levers

Cockpit & contact points

Headset	1" threadless YST steel
Handlebar	Steel
Handlebar extensions	N/A
Stem	Tnt
Saddle	Odyssey Svelte
Seatpost	TNT steel, 22.2 mm (7/8 inch) diameter

Wheels & tires

Hubs	King Kong nutted
Rims	Weinmann, 36-hole
Spokes	Stainless steel, 2.0mm straight gauge
Spoke nipples	Brass nipples
Front tire	20 x 1.75" VBR Comp III type
Wheel size	20" wheels

Geometry · Legacy reference

Top tube	495.3 mm
Head-tube angle	74°
Seat-tube angle	72°
Chainstay / rear center	393.7 mm
Wheelbase	927.1 mm
Fork offset / rake	25.4 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 22, 2026.