Bicycle Archive · Specification report

1999 Diamondback Coaster

Velopedia Archive ID 88856

Overview

Model year	1999
Brand	Diamondback
Model	Coaster
Bicycle type	Cruiser
Archive ID	88856
Original MSRP	$219.99
Colors	Blue/Black, Cherry/Black
Sizes	18", womens 17"
Weight	34 lb

Frameset

Frame construction	TIG-welded
Frame material	Hi-tensile steel
Fork	Diamondback
Fork material	Hi-tensile steel, unicrown crown
Rear shock	N/A

Drivetrain

Component group	N/A
Shifters	N/A
Front derailleur	N/A
Rear derailleur	N/A
Crankset	1-piece 6 1/2", 46 teeth
Bottom bracket	YST BB 621
BB shell width	68mm Threadless
Rear cogs	1-speed, 18 teeth
Chain	KMC 410, 1/2 x 1/8"
Pedals	Steel cage, resin body

Brakes

Brakes	Coaster rear

Cockpit & contact points

Headset	1" YST steel
Handlebar	Steel hi-rise
Handlebar extensions	N/A
Stem	Diamondback aluminum
Saddle	Diamondback cruiser
Seatpost	Pillar, steel, 25.4mm diameter

Wheels & tires

Hubs	Steel, nutted
Rims	KC 21 AL, 36-hole
Spokes	Shuhn Lih stainless steel, 2.0mm straight gauge
Spoke nipples	Brass nipples
Front tire	26 x 2.125" whitewall
Wheel size	26" wheels

Geometry · Legacy reference

Top tube	584.2 mm
Head-tube angle	72.5°
Seat-tube angle	70°
Chainstay / rear center	482.6 mm
Wheelbase	1092.2 mm
Fork offset / rake	30 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 28, 2026.