Bicycle Archive · Specification report

1998 Research Dynamics Coyote AFS 400

Velopedia Archive ID 70145

Overview

Model year	1998
Brand	Research Dynamics
Model	Coyote AFS 400
Bicycle type	Mountain bike, front & rear suspension
Archive ID	70145
Original MSRP	$999.00
Colors	Flat blue, grey
Sizes	17", 19", 21"
Weight	29.3 lb

Frameset

Frame construction	TIG-welded
Frame material	7005 aluminum
Fork	RST 381R
Fork material	Aluminum/chromoly, unicrown crown
Rear shock	Dyna-mount, 2.5" travel

Drivetrain

Component group	Shimano STX-RC
Shifters	Grip Shift ESP 700
Front derailleur	Shimano Deore XT top-swing, bottom-pull/clamp-on 31.8mm
Rear derailleur	Grip Shift ESP 7.0
Crankset	Shimano STX-RC, 22/32/42 teeth
Bottom bracket	Shimano BB-LP26, 110mm spindle
BB shell width	68mm English
Rear cogs	8-speed, 11 - 28 teeth
Chain	KMC IG-51, 1/2 x 3/32"
Pedals	Wellgo LU-954A

Brakes

Brakes	Shimano Alivio V-brake brakes, Tektro RBP-378A levers

Cockpit & contact points

Headset	1 1/8" Aheadset Kontak ST-2
Handlebar	Kalloy
Handlebar extensions	Tranz-X
Stem	Tranz-X Jo-349
Saddle	Velo Crossbow
Seatpost	Kalloy SP-263, 31.6mm diameter

Wheels & tires

Hubs	Shimano Alivio
Rims	Alex Daig, 32-hole
Spokes	Shuhn Lih stainless steel, 2.0mm straight gauge
Spoke nipples	Brass nipples
Front tire	26 x 1.95" Maxxis Gluteus
Wheel size	26" wheels

Geometry · Legacy reference

Top tube	609.6 mm
Head-tube angle	71°
Seat-tube angle	73°
Chainstay / rear center	424.2 mm
Wheelbase	1087.1 mm
Fork offset / rake	30.5 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on October 18, 2026.