Bicycle Archive · Specification report

1999 Trek Mt. Lion 30 (01)

Velopedia Archive ID 86710

Overview

Model year	1999
Brand	Trek
Model	Mt. Lion 30 (01)
Bicycle type	Juvenile
Archive ID	86710
Original MSRP	$149.99
Colors	Ice Red, Ice Royal Blue
Sizes	Boys 9.5"
Weight	25 lb

Frameset

Frame construction	TIG-welded
Frame material	Hi-tensile steel
Fork	Trek
Fork material	Hi-tensile steel
Rear shock	N/A

Drivetrain

Component group	N/A
Shifters	N/A
Front derailleur	N/A
Rear derailleur	N/A
Crankset	1-piece steel, 36 teeth
Bottom bracket	One piece
BB shell width	American
Rear cogs	1-speed, 19 teeth
Chain	KMC 410, 1/2 x 1/8"
Pedals	Platform

Brakes

Brakes	Coaster w/rear cantilever rear brakes, alloy rear levers

Cockpit & contact points

Headset	1" steel
Handlebar	Steel BMX
Handlebar extensions	N/A
Stem	Alloy 4 bolt
Saddle	Trek Paw
Seatpost	Steel, 22.2mm (7/8 inch) diameter

Wheels & tires

Hubs	Front: steel, nutted, Rear: coaster brake
Rims	Alloy, 36-hole
Spokes	UCP, 2.0mm straight gauge
Spoke nipples	Brass nipples
Front tire	20 x 2.00" Trek Paw
Wheel size	20" wheels

Geometry · Legacy reference

Top tube	469 mm
Head-tube angle	69°
Seat-tube angle	71°
Chainstay / rear center	372 mm
Wheelbase	883 mm
Fork offset / rake	27 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on October 4, 2026.