Bicycle Archive · Specification report

1998 Redline RL 640

Velopedia Archive ID 75315

Overview

Model year	1998
Brand	Redline
Model	RL 640
Bicycle type	Freestyle/jumping
Archive ID	75315
Original MSRP	$439.99
Colors	Chrome-plated
Sizes	Freestyle

Frameset

Frame construction	TIG-welded
Frame material	Chromoly, oversized
Fork	Redline
Fork material	Chromoly, unicrown crown
Rear shock	N/A

Drivetrain

Component group	N/A
Shifters	N/A
Front derailleur	N/A
Rear derailleur	N/A
Crankset	Redline Big Block, 43 teeth
Bottom bracket	One piece
BB shell width	American
Rear cogs	1-speed, 16 teeth
Chain	1/2 x 3/32"
Pedals	Redline aluminum

Brakes

Brakes	Dia-Compe 990 brakes, Dia-Compe MX-99 levers

Cockpit & contact points

Headset	1 1/8" threadless aluminum w/SST Oryg detangler
Handlebar	Redline freestyle
Handlebar extensions	N/A
Stem	RL Flight Group XL
Saddle	RL Hammerhead freestyle
Seatpost	RL Hammerhead

Wheels & tires

Hubs	Redline Flight Group
Rims	Aluminum, 48-hole
Spokes	Steel, 2.0mm straight gauge
Spoke nipples	Brass nipples
Front tire	20 x 2.125" RL Freaky-V
Wheel size	20" wheels

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on October 5, 2026.