Bicycle Archive · Specification report

2011 Giant Boulder JR

Velopedia Archive ID 22541

Overview

Model year	2011
Brand	Giant
Model	Boulder JR
Bicycle type	Juvenile mountain bike, suspension
Archive ID	22541
Original MSRP	$275.00
Colors	Red
Sizes	24" Wheel

Frameset

Frame construction	TIG-welded
Frame material	High-Tensile steel
Fork material	High-tensile steel, single crown
Rear shock	N/A

Drivetrain

Component group	Juvenile Mix
Shifters	SRAM MRX
Front derailleur	N/A
Rear derailleur	Shimano Tourney
Crankset	Alloy 3-Piece, 38T teeth
Bottom bracket	Semi cartridge
Rear cogs	7-speed, 14 - 28 teeth
Chain	KMC Z51
Pedals	Nylon platform

Brakes

Brakes	Alloy Direct Pull brakes, Alloy levers

Cockpit & contact points

Headset	1 1/8"
Handlebar	Steel low rise
Handlebar extensions	Not included
Stem	Steel
Saddle	Giant Kids MTB
Seatpost	Steel, 25.4mm diameter

Wheels & tires

Hubs	Nutted
Rims	Alloy, 36-hole
Spokes	UCP, 14ga. (2.0mm)
Front tire	24" Kenda Off Road
Wheel size	24" wheels

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 29, 2026.