Bicycle Archive · Specification report

2005 Haro Backtrail X12

Velopedia Archive ID 10170

Overview

Model year	2005
Brand	Haro
Model	Backtrail X12
Bicycle type	Juvenile
Archive ID	10170

Frameset

Frame construction	TIG-welded
Frame material	Hi-tensile steel
Fork	Haro
Fork material	High-tensile steel, unicrown crown
Rear shock	N/A

Drivetrain

Component group	N/A
Shifters	N/A
Front derailleur	N/A
Rear derailleur	N/A
Crankset	Haro OPC, 28 teeth
Bottom bracket	Opc
Rear cogs	1-speed, 16 teeth
Chain	KMC Z410, 1/2 x 1/8"
Pedals	Resin

Brakes

Brakes	Coaster brake rear

Cockpit & contact points

Headset	1" threaded steel
Handlebar	Haro
Handlebar extensions	N/A
Stem	Haro aluminum
Saddle	Haro Padded
Seatpost	Haro straight, 22.2mm (7/8 inch) diameter

Wheels & tires

Hubs	Front: steel, Rear: steel coaster
Rims	Aluminum, 16-hole
Spokes	14ga. (2.0mm) straight gauge
Spoke nipples	Brass nipples
Front tire	12 x 2.125" Kenda K-50
Wheel size	12" wheels

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 13, 2026.