Opus SONAR 2008 VS Specialized GROMROCK 2008 specs comparison

Opus Sonar

General Infos

Model	Sonar
Manufacturer	Opus
Year of production	2008
Current price	Check price Here ==>
Color choice	-Satin Black
Sizes	- Xsmall - small - medium - large - xlarge
Sizes	- Xsmall - small - medium - large - xlarge

Wheels And Breaking System

Bike front tire	26 X 2.00 (inches) CST
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Promax Levers ProMax Alloy V-Brake Brakes
Hubs for disc brakes	Rear: Formula Nutted Front: Formula
Rims manufacturer	Alex DM-18
Spoke nipples type	Not Available
Spoke wheel	Not Available

Frame and Body Specs

Frame materials	6000 aluminum c
Frame type	TIG-welded
Handlebar construction	Ora AL-027
Handlebar extender	Optional
Handlebar stem details	Ora 2D
Headset size	1 1/8 (inches) VP

Gearing Specifications

Bicycle chain	KMC
Bottom bracket shell width	Not Available
Bottom bracket type	CH-52 Cartridge
Crankset parts and sizes	Suntour XCR-170
Gear shift levers	Shimano ST-EF60
Rear gear set	11 - 30 Teeth 7-speed

Opus Sonar Fork System Data

Derailleur (Front)	Shimano C050
Derailleur (Rear)	Shimano Tourney TX-51
Fork material	Single
Fork type	75 (millimeters) Travel RST 191 T7

Other Specs of Opus Sonar

Component group sets	Mountain Mix
Pedals details	Wellgo Alloy Body and cage
Rear shock absorber	Not Available
Saddle seat	Black Ora
Seat post extension	27.2 (millimeters) Diameter Ora SP242

Specialized Gromrock

General Infos

Model	Gromrock
Manufacturer	Specialized
Year of production	2008
Current price	Check price Here ==>
Color choice	-Charcoal and black
Sizes	- 12.5 (inches)

Wheels And Breaking System

Bike front tire	26 X 2.1 (inches) Specialized Resolution Wire
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Tektro Jr. Levers Tektro IOX With 6 (inches) Rotor Brakes
Hubs for disc brakes	Specialized Hi-Lo Disc
Rims manufacturer	32-hole Specialized and Alex HRD 24
Spoke nipples type	Not Available
Spoke wheel	15ga. Straight Gauge Stainless Steel

Frame and Body Specs

Frame materials	A1 Premium Aluminum
Frame type	TIG-welded
Handlebar construction	Alloy Riser
Handlebar extender	Optional
Handlebar stem details	Specialized 3D Forged Alloy 25.4 (millimeters)
Headset size	1 1/8 (inches) Threadless

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) KMX X8
Bottom bracket shell width	68 (millimeters)
Bottom bracket type	118 (millimeters) Spindle Shimano BB-ES25
Crankset parts and sizes	22/32/44 Teeth SR Suntour XCM-T312
Gear shift levers	SRAM 3.0 Comp Grip Shift
Rear gear set	11 - 32 Teeth 8-speed

Specialized Gromrock Fork System Data

Derailleur (Front)	Top Swing Shimano Altus FD-M310-6
Derailleur (Rear)	SRAM 3.0
Fork material	Single Crown Crown Aluminum and steel
Fork type	80 (millimeters) Travel SR Suntour SF7-XCM

Other Specs of Specialized Gromrock

Component group sets	Mountain Mix
Pedals details	Steel Cage and composite Body
Rear shock absorber	Not Available
Saddle seat	Specialized Kids ATB With Kevlar Sides
Seat post extension	30.9 (millimeters) Diameter Specialized Alloy Two Bolt