Bicycle Archive · Specification report

2001 Diamondback Assault T1

Velopedia Archive ID 36059

Overview

Model year	2001
Brand	Diamondback
Model	Assault T1
Bicycle type	BMX
Archive ID	36059
Original MSRP	$249.99
Colors	Piston Blue, Scorch Red
Sizes	Pro

Frameset

Frame construction	TIG-welded
Frame material	Chromoly
Fork	Diamondback RMX
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	1-piece 180mm, 44 teeth
Bottom bracket	Steel retainer style
Rear cogs	1-speed, 16 teeth
Chain	KMC Z410, 1/2 x 3/32"
Pedals	Aluminum platform

Brakes

Brakes	ProMax 295l rear brakes, ProMax 63l rear levers

Cockpit & contact points

Headset	1 1/8" threadless Tange Seiki TG-3
Handlebar	Chromoly BMX
Handlebar extensions	Not included
Stem	Aluminum
Saddle	Padded BMX
Seatpost	Aluminum micro-adjust, 26.0mm diameter

Wheels & tires

Hubs	Sealed mechanism
Rims	Alex X-303, 36-hole
Front tire	Front: 20 x 2.125" Diamondback Crazy Train, Rear: 20 x 1.95 Diamondback Crazy Train
Wheel size	20" wheels

Geometry · Legacy reference

Top tube	533.4 mm
Head-tube angle	74°
Seat-tube angle	71°
Chainstay / rear center	387.3 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 27, 2026.