Bicycle Archive · Specification report

1998 Trek Mountain Track 240

Velopedia Archive ID 77607

Overview

Model year	1998
Brand	Trek
Model	Mountain Track 240
Bicycle type	Juvenile mountain bike, suspension
Archive ID	77607
Original MSRP	$357.99
Colors	Ice Mirror Red
Sizes	Boys 13", girls 13"

Frameset

Frame construction	TIG-welded
Frame material	Hi-tensile steel
Fork	RST 261
Fork material	Chromoly, triple-clamp crown
Rear shock	N/A

Drivetrain

Component group	Shimano Altus
Shifters	Grip Shift MRX-170
Front derailleur	Shimano Altus top-swing, top-pull
Rear derailleur	Shimano Altus
Crankset	Shimano Altus, 24/34/42 teeth
Bottom bracket	Shimano BB-CT92E
BB shell width	68mm English
Rear cogs	7-speed, 11 - 28 teeth
Chain	Shimano CN-UG50, 1/2 x 3/32"
Pedals	Resin

Brakes

Brakes	Shimano Altus brakes, Shimano Altus levers

Cockpit & contact points

Headset	1" steel
Handlebar	Steel
Handlebar extensions	Not included
Stem	Steel
Saddle	Trek
Seatpost	Aluminum micro-adjust, 26.6mm diameter

Wheels & tires

Hubs	Front: aluminum, nutted, Rear: Shimano Altus
Rims	Weinmann 519, 36-hole
Spokes	Stainless steel, 2.0mm straight gauge
Spoke nipples	Brass nipples
Front tire	24 x 2.00" knobby
Wheel size	24" wheels

Geometry · Legacy reference

Top tube	528.3 mm
Head-tube angle	70°
Seat-tube angle	72°
Chainstay / rear center	406.4 mm
Wheelbase	988.1 mm
Fork offset / rake	40.6 mm

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