VelopediaBicycle Archive · Specification report

1998 Bontrager B1

Velopedia Archive ID 74606

Overview

Model year1998
BrandBontrager
ModelB1
Bicycle typeBMX
Archive ID74606
Original MSRP$399.99
ColorsChrome-plated
SizesExpert, Pro, Pro XL

Frameset

Frame constructionTIG-welded
Frame materialTrue Temper chromoly
ForkBontrager
Fork materialChromoly, unicrown crown
Rear shockN/A

Drivetrain

Component groupN/A
ShiftersN/A
Front derailleurN/A
Rear derailleurN/A
Crankset1-piece chromoly, 44 teeth
Bottom bracketOne piece
BB shell widthAmerican 24tpi
Rear cogs1-speed, 16 teeth
ChainTaya 400, 1/2 x 1/8"
PedalsPlatform, aluminum

Brakes

BrakesTektro linear-pull rear brakes, Tektro levers

Cockpit & contact points

Headset1 1/8" threadless Aheadset
HandlebarChromoly
Handlebar extensionsN/A
StemBontrager aluminum
SaddleBontrager
SeatpostBontrager, 27.0mm diameter

Wheels & tires

HubsFormula aluminum
RimsAluminum, 36-hole
SpokesSteel, 2.0mm straight gauge
Spoke nipplesBrass nipples
Front tireFront: 20 x 2.125" Kenda K-50 Comp III type, Rear: 20 x 1.75" Kenda K-50 Comp III type
Wheel size20" wheels

Geometry · Legacy reference

Top tube540 mm
Head-tube angle74°
Seat-tube angle68°

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on October 12, 2026.