VelopediaBicycle Archive · Specification report

2006 Specialized Hotrock A1 FSR

Velopedia Archive ID 11851

Overview

Model year2006
BrandSpecialized
ModelHotrock A1 FSR
Bicycle typeMountain bike, front & rear suspension
Archive ID11851
Original MSRP$350.00
Sizes11.5"

Frameset

Frame constructionTIG-welded
Frame materialA1 Premium Aluminum
ForkRST Capa T5, 51mm
Fork materialSteel/aluminum, single crown
Rear shockToughShock Coil over, 150x31mm, 3" travel

Drivetrain

Component groupJuvenile Mix
ShiftersShimano RS-41 "Revo" twist shifters, 3/7speed
Front derailleurShimano Acera, 31.8 clamp, bottom pull
Rear derailleurShimano Altus
CranksetTruvativ “ISO Flow”, alloy 160mm with replaceable chainrings and capless bo, Truvativ 42t 7075alloy, heat treated Cr-Mo 32t and 22t teeth
Bottom bracketTruVativ LE, 113mm spindle
BB shell width68mm English
Rear cogs7-speed, 14 - 28 teeth
ChainShimano
PedalsSteel cage, resin body(toe clip compatible) with reflectors

Brakes

BrakesTektro, alloy linear pull, stainless steel pipe, 60mm all weather pads brakes, Tektro junior “V”, alloy, linear pull compatible levers

Cockpit & contact points

Headset1 1/8" threadless, sealed loose ball
HandlebarAlloy, flat, 6 degree sweep, 540mm width
Handlebar extensionsNot included
StemA-Head alloy, 15 degree rise, 75mm length
SaddleSpecialized Mini Mountain
SeatpostAlloy, micro adjust, 27.2mm diameter

Wheels & tires

HubsFront: Alloy, double sealed with alloy QR, Rear: Alloy, double sealed with alloy QR, freewheel type
RimsAlex, 32-hole
SpokesStainless steel, 14ga. (2.0mm) straight gauge
Spoke nipplesBrass nipples
Front tire24 x 1.80" Specialized Roll X
Wheel size24" wheels

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