Specialized HOTROCK 24 21-SPEED BOYS 2015 VS Specialized HOTROCK 12 BOYS 2009 specs comparison

Specialized HOTROCK 24 21-SPEED BOYS

General Infos

Model	HOTROCK 24 21-SPEED BOYS
Manufacturer	Specialized
Year of production	2015
Current price	Check price Here ==>
Color choice	- Orange and Black and White -Black and White and Cyan
Sizes	- 11.5 (inches) - 13.5 (inches)
Sizes	- 11.5 (inches) - 13.5 (inches)

Wheels And Breaking System

Bike front tire	24x2.125 (inches) 30TPI Wire Bead Specialized Roller
Bike rear tire	Not Available
Bike wheel size	24
Brakeset type	60 (millimeters) Pads Die-cast Alloy V-brake
Hubs for disc brakes	3/8 (inches) Axle 32h 32h Alloy Dual Lock Nuts With 17 (millimeters) Contact Side Dual Lock Nuts With 17 (millimeters) Contact Side Loose Ball Loose Ball Nutted Steel Nutted Alloy
Rims manufacturer	32h Alloy Single Wall Pin Joint 24 (inches)
Spoke nipples type	Not Available
Spoke wheel	14g With Brass Nipple Stainless

Frame and Body Specs

Frame materials	Aluminum
Frame type	Forged Dropouts Formed Toptube and downtube Replaceable Alloy Derailleur Hanger Specialized A1 Premium Aluminum
Handlebar construction	10-degree Backsweep 25.4 (millimeters) 4-degree Upsweep Steel Kid's Flat
Handlebar extender	Not Available
Handlebar stem details	20-degree Rise 4-bolt Forged Alloy Ahead
Headset size	1/8 (inches) Sealed Cartridge Bearings Ahead

Gearing Specifications

Bicycle chain	1/2 (inches)x3/32 (inches) KMC HV500
Bottom bracket shell width	Not Available
Bottom bracket type	Semi-cartridge With Bolts 68x119 (millimeters)
Crankset parts and sizes	42/34/24 Steel With Chainguard Forged Alloy Arms
Gear shift levers	7-speed Shimano Revo-Shift
Rear gear set	14-28 7-speed Freewheel Shimano

Specialized HOTROCK 24 21-SPEED BOYS Fork System Data

Derailleur (Front)	Shimano Tourney
Derailleur (Rear)	7-speed MegaRange Shimano TX-35
Fork material	Suspension
Fork type	1 Pc. Alloy Lower 1-1/8 (inches) Steerer 50 (millimeters) Travel Hi-Ten 25.4 (millimeters) Stanchions Coil and MCU Spring Direct Press Type Dust Seal Disc And V-brake Mount Preload Adjust SR Suntour XCT-JR-24

Other Specs of Specialized HOTROCK 24 21-SPEED BOYS

Component group sets	Youth Mix
Pedals details	9/16 (inches) With Reflectors Composite Platform
Rear shock absorber	Not Available
Saddle seat	Not Available
Seat post extension	Not Available

Specialized Hotrock 12 Boys

General Infos

Model	Hotrock 12 Boys
Manufacturer	Specialized
Year of production	2009
Current price	Check price Here ==>
Color choice	- Gloss Red -Gloss Green
Sizes	- Not available

Wheels And Breaking System

Bike front tire	12 X 2.125 (inches) Specialized
Bike rear tire	Not Available
Bike wheel size	12 (inches) Wheels
Brakeset type	Coaster Rear
Hubs for disc brakes	Rear: Joy Tech Steel Nutted Coaster Front: Joy Tech Steel Nutted
Rims manufacturer	16-hole Alloy
Spoke nipples type	Not Available
Spoke wheel	14ga. UCP

Frame and Body Specs

Frame materials	Specialized A1 Premium Aluminum
Frame type	TIG-welded
Handlebar construction	Alloy
Handlebar extender	Optional
Handlebar stem details	Alloy Quill
Headset size	1 (inches) Threaded

Gearing Specifications

Bicycle chain	1/2 X 1/8 (inches) KMC Z410
Bottom bracket shell width	Not Available
Bottom bracket type	Loose Ball
Crankset parts and sizes	28 Teeth Heat Treated Hi-Ten
Gear shift levers	Not Available
Rear gear set	1-speed

Specialized Hotrock 12 Boys Fork System Data

Derailleur (Front)	Not Available
Derailleur (Rear)	Not Available
Fork material	Unicrown Crown A1 Premium Aluminum and Hi-Ten
Fork type	Specialized

Other Specs of Specialized Hotrock 12 Boys

Component group sets	Juvenile Mix
Pedals details	Composite
Rear shock absorber	Not Available
Saddle seat	Specialized Kid's
Seat post extension	22.2 (millimeters) Diameter Integrated Steel Post