Bicycle Archive · Specification report

1998 Trek Sub-Atomic (01)

Velopedia Archive ID 79478

Overview

Model year	1998
Brand	Trek
Model	Sub-Atomic (01)
Bicycle type	BMX
Archive ID	79478
Original MSRP	$299.99
Colors	Matte grey/green
Sizes	Pro

Frameset

Frame construction	TIG-welded
Frame material	6061 T6 aluminum
Fork	Trek
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 steel, 44 teeth
Bottom bracket	One piece
BB shell width	American 24tpi
Rear cogs	1-speed, 16 teeth
Chain	Taya 410, 1/2 x 1/8"
Pedals	Platform, aluminum

Brakes

Brakes	VB-887 rear brakes, 281 DT levers

Cockpit & contact points

Headset	1 1/8" threadless Aheadset
Handlebar	Trek
Handlebar extensions	N/A
Stem	Aluminum
Saddle	Trek
Seatpost	Micro-adjust, 25.4mm diameter

Wheels & tires

Hubs	Kung Ten aluminum, nutted
Rims	Aluminum, 36-hole
Spokes	Steel, 2.0mm straight gauge
Spoke nipples	Brass nipples
Front tire	20 x 1.75" Kenda K-50 Comp III type
Wheel size	20" wheels

Geometry · Legacy reference

Top tube	518.2 mm
Head-tube angle	73.5°
Seat-tube angle	71°
Chainstay / rear center	368.3 mm
Wheelbase	911.9 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on October 3, 2026.