Bicycle Archive · Specification report

1998 Brompton L5

Velopedia Archive ID 78341

Overview

Model year	1998
Brand	Brompton
Model	L5
Bicycle type	Folding
Archive ID	78341
Original MSRP	$751.00
Colors	Black, red
Sizes	One size fits all
Weight	26 lb

Frameset

Frame construction	Fillet brazed
Frame material	Chromoly
Fork	Brompton
Fork material	Chromoly
Rear shock	Rubber damper, 1.0" travel

Drivetrain

Component group	Sturmey Archer
Shifters	Sturmey Archer 5-speed
Front derailleur	N/A
Rear derailleur	N/A
Crankset	Stronglight, 50 teeth
Bottom bracket	FAG sealed, 121mm spindle
BB shell width	68mm English
Rear cogs	5-speed internal, 13 teeth
Chain	Union 600, 1/2 x 1/8"
Pedals	Brompton folding

Brakes

Brakes	Saccon sidepull brakes, Saccon levers

Cockpit & contact points

Headset	1 1/8" Tien Hsin TH-850 S
Handlebar	Brompton aluminum
Handlebar extensions	N/A
Stem	Brompton folding
Saddle	Selle Italia
Seatpost	Brompton special, 31.8mm diameter

Wheels & tires

Hubs	Front: aluminum, nutted, Rear: Sturmey Archer
Rims	Alesa aluminum, 28-hole
Spokes	Steel, 2.0mm straight gauge
Spoke nipples	Brass nipples
Front tire	16 x 1 3/8" Cheng Shin C-37-349
Wheel size	16" wheels

Geometry · Legacy reference

Top tube	582 mm
Head-tube angle	72.4°
Seat-tube angle	73°
Chainstay / rear center	420 mm
Wheelbase	1015 mm
Fork offset / rake	39 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on October 8, 2026.