Bicycle Archive · Specification report

2001 Diamondback Session

Velopedia Archive ID 36153

Overview

Model year	2001
Brand	Diamondback
Model	Session
Bicycle type	Freestyle/jumping
Archive ID	36153
Original MSRP	$219.99
Colors	Blue, Grey
Sizes	Pro

Frameset

Frame construction	TIG-welded
Frame material	Chromoly
Fork	Diamondback
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 chromoly 175mm, 44 teeth
Bottom bracket	Steel retainer style
Rear cogs	1-speed, 16 teeth
Chain	KMC Z410, 1/2 x 1/8"
Pedals	Aluminum platform

Brakes

Brakes	ProMax A980 rear brakes, Promax 63C rear levers

Cockpit & contact points

Headset	1 1/8" threadless Tange Seiki TG-3
Handlebar	Chromoly jump
Handlebar extensions	Not included
Stem	Aluminum
Saddle	DB Urban Camo padded
Seatpost	Steel micro-adjust, 25.4mm diameter

Wheels & tires

Hubs	RMX aluminum sealed bearing
Rims	Alex Y303, 48-hole
Front tire	20 x 2.25" Diamondback
Wheel size	20" wheels

Geometry · Legacy reference

Top tube	508 mm
Head-tube angle	73.5°
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 28, 2026.