VelopediaBicycle Archive · Specification report

1998 AMP Research B4 F4BLT

Velopedia Archive ID 76008

Overview

Model year1998
BrandAMP Research
ModelB4 F4BLT
Bicycle typeMountain bike, front & rear suspension
Archive ID76008
Original MSRP$2,525.00
ColorsBall-Burnished, Candy Apple Red
SizesLarge, medium, small, xsmall

Frameset

Frame constructionTIG-welded
Frame materialAlcoa Alcalyte 6013 T6 aluminum
ForkAMP Research F4BLT
Fork materialAlcoa Alcalyte 6013 T6 aluminum, linkage crown
Rear shockAMP Research, 3.0" travel

Drivetrain

Component groupShimano Deore XT
ShiftersShimano Deore XT RapidFire SL
Front derailleurShimano Deore XT, top-pull
Rear derailleurShimano Deore XT
CranksetShimano Deore XT, 22/32/42 teeth
Bottom bracketShimano BB-UN72
Rear cogs8-speed, 11 - 28 teeth
ChainShimano CN-IG70, 1/2 x 3/32"
PedalsNot included

Brakes

BrakesAMP D1 Hydraulic Disc Brake System brakes, Shimano Deore XT levers

Cockpit & contact points

Headset1 1/8" threadless Aheadset
HandlebarControl Tech aluminum
Handlebar extensionsNot included
StemControl Tech
SaddleVetta TT
SeatpostControl Tech or Thomson, 31.6mm diameter

Wheels & tires

HubsFront: AMP Research, Rear: Shimano Deore XT
RimsMavic 238
Front tireBuyer's choice
Wheel sizeBuyer's choice wheels

Geometry · Legacy reference

Top tube574 mm
Head-tube angle71°
Seat-tube angle73°
Chainstay / rear center426.7 mm
Wheelbase1066.8 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 22, 2026.