VelopediaBicycle Archive · Specification report

1999 Diamondback Viper XL

Velopedia Archive ID 86372

Overview

Model year1999
BrandDiamondback
ModelViper XL
Bicycle typeBMX
Archive ID86372
Original MSRP$194.99
ColorsBlack, Chrome-Plated, Green, Yellow
SizesPro XL
Weight28.5 lb

Frameset

Frame constructionTIG-welded
Frame materialChromoly main triangle/hi-tensile steel rear stays
ForkDiamondback
Fork materialHi-tensile steel, unicrown crown
Rear shockN/A

Drivetrain

Component groupN/A
ShiftersN/A
Front derailleurN/A
Rear derailleurN/A
Crankset1-piece chromoly, 44 teeth
Bottom bracketYST BB 621
BB shell width68mm Threadless
Rear cogs1-speed, 16 teeth
ChainKMC 410, 1/2 x 1/8"
PedalsPlatform, aluminum

Brakes

BrakesDia-Compe Bulldog front/Lee Chi ProMax linear-pull rear brakes, Lee Chi ProMax levers

Cockpit & contact points

Headset1 1/8" threadless Tioga TG
HandlebarDiamondback steel
Handlebar extensionsN/A
StemAlloy Ahead type
SaddlePadded saddle
SeatpostAlloy, 25.4mm diameter

Wheels & tires

HubsAlloy
RimsAlloy, 36-hole
SpokesShuhn Lih steel, 2.0mm straight gauge
Spoke nipplesBrass nipples
Front tireFront: 20 x 2.125" Comp III style, Rear: 20 x 1.75" Comp III style
Wheel size20" wheels

Geometry · Legacy reference

Top tube533.4 mm
Head-tube angle75°
Seat-tube angle71°
Chainstay / rear center393.7 mm
Wheelbase965.2 mm
Fork offset / rake20 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 27, 2026.