Velopedia Bicycle Archive

2006 Specialized Hotrock A1 FSR

Original specifications: Shimano Altus · 7-speed · mechanical rear derailleur · 24" wheels.

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At a glance

Model year
2006
Category
Mountain
Original MSRP
$350.00
Sizes
11.5"
In this record
28 specifications · archived image · original MSRP
Archive ID
11851
Model history 4 other years
Original buildA1 Premium Aluminum · Juvenile Mix · 24" wheels

Historical catalog variants

Archived sizes and colors

1 item record

Item-level catalog entries recovered from Velopedia’s original bicycle archive. They document how this model was listed historically; they do not identify the frame size associated with legacy reference geometry or indicate current availability.

Published sizes

11.5"
View 1 archived size/color combination
SizeColor
11.5"—

Historical catalog evidence. Exact specifications and naming may vary by market, production run or manufacturer revision.

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

Gearing

Chainring ÷ rear sprocket

Lower ratios provide more mechanical advantage for climbing. Higher ratios turn the rear wheel farther with each crank revolution.

Published build42/32/22T · 14–28T · 7-speed
Lowest0.79:1 Highest3.00:1 Total range382%

Speed estimates require verified rear tire dimensions. Gear ratios are shown without assuming a tire size.

Bike-specific inspection checklist 22 checks based on 6 archived component groups Open checklistClose checklist
0 of 22 checked Progress stays in this browser for this bike.

This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.

Archived: 2006 Specialized Hotrock A1 FSR · Mountain bike, front & rear suspension · Published sizes: 11.5"

Archived: Frame: TIG-welded · Fork: RST Capa T5, 51mm · Steel/aluminum, single crown

Archived: Fork: RST Capa T5, 51mm · Rear shock: ToughShock Coil over, 150x31mm, 3" travel

Archived: Group: Juvenile Mix · Shifters: Shimano RS-41 "Revo" twist shifters, 3/7speed · Front derailleur: Shimano Acera, 31.8 clamp, bottom pull · Rear derailleur: Shimano Altus · Crankset: Truvativ “ISO Flow”, alloy 160mm with replaceable chainrings and capless bo, Truvativ 42t 7075alloy, heat treated Cr-Mo 32t and 22t teeth · Bottom bracket: TruVativ LE, 113mm spindle · Rear cogs: 7-speed, 14 - 28 teeth · Chain: Shimano

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

Archived: Wheel size: 24" wheels · Rims: Alex, 32-hole · Hubs: Front: Alloy, double sealed with alloy QR, Rear: Alloy, double sealed with alloy QR, freewheel type · Front tire: 24 x 1.80" Specialized Roll X

Controls and contact points

Archived: Headset: 1 1/8" threadless, sealed loose ball · Handlebar: Alloy, flat, 6 degree sweep, 540mm width · Stem: A-Head alloy, 15 degree rise, 75mm length · Seatpost: Alloy, micro adjust, 27.2mm diameter · Saddle: Specialized Mini Mountain · Pedals: Steel cage, resin body(toe clip compatible) with reflectors

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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.

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