Bicycle Archive · Specification report

1999 Dyno Slammer

Velopedia Archive ID 88807

Overview

Model year	1999
Brand	Dyno
Model	Slammer
Bicycle type	Freestyle/jumping
Archive ID	88807
Original MSRP	$699.99
Colors	Red Rum
Sizes	Boys

Frameset

Frame construction	Welded
Frame material	4130 chromoly
Fork	GT
Fork material	4130 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	Three piece, sealed
Rear cogs	1-speed, 16 teeth
Chain	1/2 x 1/8"
Pedals	GT aluminum platform

Brakes

Brakes	Dia-Compe 990 brakes, Dia-Compe Tech 99 levers

Cockpit & contact points

Headset	1 1/8" threadless Aheadset SE-1 w/SST Oryg detangler
Handlebar	Dyno 2-piece
Handlebar extensions	N/A
Stem	GT Piston
Saddle	GT
Seatpost	GT chromoly micro-adjust

Wheels & tires

Hubs	GT Mohawk
Rims	Weinmann ZAC-XX
Spokes	Steel, 2.0mm straight gauge
Spoke nipples	Brass nipples
Front tire	20 x 1.95" GT Air Bags
Wheel size	20" wheels

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 24, 2026.