Bicycle Archive · Specification report

1998 Dyno Slammer

Velopedia Archive ID 77727

Overview

Model year	1998
Brand	Dyno
Model	Slammer
Bicycle type	Freestyle/jumping
Archive ID	77727
Original MSRP	$830.99
Colors	Chrome-plated
Sizes	Boys

Frameset

Frame construction	TIG-welded
Frame material	Chromoly
Fork	Dyno
Fork material	Chromoly, unicrown crown
Rear shock	N/A

Drivetrain

Component group	N/A
Shifters	N/A
Front derailleur	N/A
Rear derailleur	N/A
Crankset	GT Power Series 3-piece chromoly, 39 teeth
Bottom bracket	Sealed cartridge
BB shell width	American
Rear cogs	1-speed, 16 teeth
Chain	1/2 x 1/8"
Pedals	GT aluminum platforms

Brakes

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

Cockpit & contact points

Headset	1 1/8" threadless Aheadset w/SST Oryg detangler
Handlebar	Dyno 4-piece
Handlebar extensions	N/A
Stem	GT Piston
Saddle	GT
Seatpost	GT chromoly micro-adjust

Wheels & tires

Hubs	GT Mohawk
Rims	Super 7X type, 48-hole
Spokes	Stainless steel, 2.0mm straight gauge
Spoke nipples	Brass nipples
Front tire	20 X 2.10" GT LP III
Wheel size	20" wheels

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 23, 2026.