Bicycle Archive · Specification report

1999 Trek Vert 4

Velopedia Archive ID 80734

Overview

Model year	1999
Brand	Trek
Model	Vert 4
Bicycle type	BMX
Archive ID	80734
Original MSRP	$549.99
Colors	Blue Moon/Cream
Sizes	Boys
Weight	26 lb

Frameset

Frame construction	TIG-welded
Frame material	Chromoly
Fork	Trek
Fork material	Chromoly
Rear shock	N/A

Drivetrain

Component group	N/A
Shifters	N/A
Front derailleur	N/A
Rear derailleur	N/A
Crankset	1-piece chromoly, 44 teeth
Bottom bracket	One piece
BB shell width	American
Rear cogs	1-speed, 16 teeth
Chain	Taya TB-410, 1/2 x 1/8"
Pedals	Alloy platform

Brakes

Brakes	Dia-Compe 990 brakes, Dia-Compe Tech 77 levers

Cockpit & contact points

Headset	1 1/8" threadless Aheadset
Handlebar	Freestyle
Handlebar extensions	N/A
Stem	Alloy Ahead type
Saddle	Velo
Seatpost	Trek, 25.4mm diameter

Wheels & tires

Hubs	Kung Ten aluminum, nutted
Rims	Bontrager Mack, 48-hole
Spokes	2.0mm straight gauge
Spoke nipples	Brass nipples
Front tire	20 x 1.90"
Wheel size	20" wheels

Geometry · Legacy reference

Top tube	520 mm
Head-tube angle	75°
Seat-tube angle	74°
Chainstay / rear center	387 mm
Wheelbase	940 mm
Fork offset / rake	33 mm

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