Specialized HOTROCK 12 GIRLS 2007 VS Trek JET 20 2011 specs comparison

Specialized Hotrock 12 Girls

General Infos

Model	Hotrock 12 Girls
Manufacturer	Specialized
Year of production	2007
Current price	Check price Here ==>
Color choice	- Blue and Black -Pink and Black
Sizes	- Standard size for everyone
Sizes	- Standard size for everyone

Wheels And Breaking System

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

Frame and Body Specs

Frame materials	Specialized A1 Premium Aluminum
Frame type	TIG-welded
Handlebar construction	Alloy 2pc
Handlebar extender	Optional
Handlebar stem details	Alloy 1 (inches) Quill
Headset size	1 (inches) Threaded

Gearing Specifications

Bicycle chain	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 Girls Fork System Data

Derailleur (Front)	Not Available
Derailleur (Rear)	Not Available
Fork material	Unicrown Crown Aluminum and steel Steerer
Fork type	Specialized A1

Other Specs of Specialized Hotrock 12 Girls

Component group sets	Juvenile Mix
Pedals details	Composite Platform
Rear shock absorber	Not Available
Saddle seat	Specialized Hotrock Jumping
Seat post extension	22.2 (millimeters) Diameter Steel

Trek Jet 20

General Infos

Model	Jet 20
Manufacturer	Trek
Year of production	2011
Current price	Check price Here ==>
Color choice	- Metallic Blue and Black -Matallic Black and Metallic Orange
Sizes	- 20 Dialed frame (inches)

Wheels And Breaking System

Bike front tire	20 X 1.95 (inches) Cross Knobby
Bike rear tire	Not Available
Bike wheel size	20 (inches) Wheels
Brakeset type	None Front and Dialed Alloy Rear Levers None Front and Alloy Linear Rear Brakes
Hubs for disc brakes	Steel
Rims manufacturer	36-hole Alloy
Spoke nipples type	Not Available
Spoke wheel	Not Available

Frame and Body Specs

Frame materials	High Tensile Steel
Frame type	TIG-welded
Handlebar construction	Dialed 20 (inches)
Handlebar extender	Optional
Handlebar stem details	Dialed
Headset size	Adjustable Ball Bearing

Gearing Specifications

Bicycle chain	Not Available
Bottom bracket shell width	Not Available
Bottom bracket type	Not Available
Crankset parts and sizes	32 Teeth Dialed 4.5 (inches)
Gear shift levers	Not Available
Rear gear set	19 Teeth 1-speed

Trek Jet 20 Fork System Data

Derailleur (Front)	Not Available
Derailleur (Rear)	Not Available
Fork material	Unicrown Crown High Tensile Steel
Fork type	Trek

Other Specs of Trek Jet 20

Component group sets	Juvenile Mix
Pedals details	Dialed 20 (inches) Platform
Rear shock absorber	Not Available
Saddle seat	Dialed 20 (inches)
Seat post extension	Steel