Specialized ROCKHOPPER PRO DISC ALL MOUNTAIN 2006 VS Trek 4900 2002 specs comparison

Specialized Rockhopper Pro Disc All Mountain

General Infos

Model	Rockhopper Pro Disc All Mountain
Manufacturer	Specialized
Year of production	2006
Current price	Check price Here ==>
Color choice	-Not found
Sizes	- 13 (inches) - 15 (inches) - 17 (inches) - 19 (inches) - 21 (inches) - 23 (inches)
Sizes	- 13 (inches) - 15 (inches) - 17 (inches) - 19 (inches) - 21 (inches) - 23 (inches)

Wheels And Breaking System

Bike front tire	Wire Bead 26 X 2.30 (inches) Specialized Enduro
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	6” Rotor Brakes Avid FR-5 Two Finger Alloy “V” Levers Levers Avid BB5 Mechanical Disc
Hubs for disc brakes	Rear: Shimano M-475 Disc Alloy Q and R Alloy Q and R Loose Ball Bearings Loose Ball Bearings Front: Specialized Disc
Rims manufacturer	36-hole Disc SUN SingleTrack
Spoke nipples type	Brass Nipples
Spoke wheel	15ga. Straight Gauge Stainless Steel

Frame and Body Specs

Frame materials	A1 Premium Aluminum
Frame type	TIG-welded
Handlebar construction	45 (millimeters) Rise Alloy 31.8 (millimeters)
Handlebar extender	Optional
Handlebar stem details	3d Forged Alloy 5 Degree Rise Truvativ XR
Headset size	Black Steel Cups Loose Ball Bearings With Seals 1 1/8 (inches) Threadless

Gearing Specifications

Bicycle chain	Shimano CN-HG53
Bottom bracket shell width	73 (millimeters) English
Bottom bracket type	118 (millimeters) Spindle TruVativ Power Spline
Crankset parts and sizes	Poly Bash Guard With 32t Heat Treated Cr-Mo X 22t Heat Treated Cr-Mo PowerSpline Forged 6066 Alloy Repla Teeth Truvativ Blaze
Gear shift levers	Shimano M-510 Deore SL
Rear gear set	11 - 34 Teeth 8-speed

Specialized Rockhopper Pro Disc All Mountain Fork System Data

Derailleur (Front)	34.9 (millimeters) Clamp Bottom Pull Shimano Deore
Derailleur (Rear)	Shimano M-570 LX
Fork material	Single Crown Magnesium and aluminum and steel
Fork type	130 (millimeters) Marzocchi Drop OFF Comp

Other Specs of Specialized Rockhopper Pro Disc All Mountain

Component group sets	Mountain Mix
Pedals details	9/16” Cr-mo Spindle Alloy Platform
Rear shock absorber	Not Available
Saddle seat	Specialized Body Geometry Sport MTB
Seat post extension	30.9 (millimeters) Diameter Alloy Micro Adjust

Trek 4900

General Infos

Model	4900
Manufacturer	Trek
Year of production	2002
Current price	Check price Here ==>
Color choice	- Yellow -Grey
Sizes	- 13 (inches) - 16.5 (inches) - 18 (inches) - 19.5 (inches) - 21 (inches) - 22.5 (inches)

Wheels And Breaking System

Bike front tire	26 X 1.95 (inches) Bontrager Jones AC
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Aluminum Linear-pull Levers Aluminum Linear-pull Brakes
Hubs for disc brakes	Rear: Shimano Front: Aluminum
Rims manufacturer	Bontrager Corvair
Spoke nipples type	Not Available
Spoke wheel	14ga. Straight Gauge Stainless Steel

Frame and Body Specs

Frame materials	Aluminum
Frame type	TIG-welded
Handlebar construction	Bontrager Crowbar Sport
Handlebar extender	Optional
Handlebar stem details	Bontrager Sport
Headset size	1 1/8 (inches) Threadless Aheadset

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches)
Bottom bracket shell width	Not Available
Bottom bracket type	Not Available
Crankset parts and sizes	22/32/42 Teeth Bontrager
Gear shift levers	Shimano Alivio RapidFire Plus
Rear gear set	11 - 32 Teeth 9-speed

Trek 4900 Fork System Data

Derailleur (Front)	Shimano Alivio
Derailleur (Rear)	Shimano Deore SGS
Fork material	Single Triple-clamp Crown Aluminum
Fork type	3.15 (inches) Travel Rock Shox Judy C

Other Specs of Trek 4900

Component group sets	Mountain Mix
Pedals details	Aluminum ATB
Rear shock absorber	Not Available
Saddle seat	Trek ATB
Seat post extension	Bontrager Sport