AMP Research B4 1999 VS GT MARATHON 9R 2008 specs comparison

AMP Research B4

General Infos

Model	B4
Manufacturer	AMP Research
Year of production	1999
Current price	Check price Here ==>
Color choice	- Polished -Candy Apple Red
Sizes	- Large - medium - small - xsmall
Sizes	- Large - medium - small - xsmall

Wheels And Breaking System

Bike front tire	26 X 1.90 (inches) Hutchinson On The Rocks
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Shimano Deore XT Levers AMP D1 Hydraulic Disc Brake System Brakes
Hubs for disc brakes	Rear: Shimano Deore XT Front: AMP Research D1
Rims manufacturer	32-hole Mavic X221
Spoke nipples type	Alloy Nipples
Spoke wheel	2.0 (millimeters) Double-butted DT Stainless Steel

Frame and Body Specs

Frame materials	Alcoa Alcalyte 6013 T6 Aluminum
Frame type	TIG-welded
Handlebar construction	Hsin Lung Aluminum
Handlebar extender	Optional
Handlebar stem details	Hsin Lung Aluminum
Headset size	1 1/8 (inches) Threadless Ritchey Logic

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) Shimano CN-IG90
Bottom bracket shell width	68 (millimeters) Threadless
Bottom bracket type	110.5 (millimeters) Spindle Shimano Deore XT
Crankset parts and sizes	22/32/44 Teeth Shimano Deore XT
Gear shift levers	Shimano Deore XT RapidFire SL
Rear gear set	11 - 34 Teeth 9-speed

AMP Research B4 Fork System Data

Derailleur (Front)	Bottom-pull and clamp-on 35.0 (millimeters) Shimano Deore XT
Derailleur (Rear)	Shimano Deore XT GS
Fork material	Linkage Crown Alcoa Alcalyte 6013 T6 Aluminum
Fork type	2.25 (inches) Travel AMP Research F3 XC

Other Specs of AMP Research B4

Component group sets	Shimano Deore XT
Pedals details	Platform
Rear shock absorber	3.0 (inches) Travel AMP Research
Saddle seat	Serfas Lola
Seat post extension	31.6 (millimeters) Diameter JD Components

GT Marathon 9R

General Infos

Model	Marathon 9R
Manufacturer	GT
Year of production	2008
Current price	Check price Here ==>
Color choice	-Dark Red
Sizes	- Medium - large

Wheels And Breaking System

Bike front tire	29 (inches) WTB Prowler
Bike rear tire	Not Available
Bike wheel size	29 (inches) Wheels
Brakeset type	Shimano LX Levers Shimano LX Hydraulic Disc Brakes
Hubs for disc brakes	Shimano LX
Rims manufacturer	WTB Speed Disc 29 (inches)
Spoke nipples type	DT Brass
Spoke wheel	15/14ga. Butted DT Swiss

Frame and Body Specs

Frame materials	GT I-Drive 4 6061 Aluminum
Frame type	TIG-welded
Handlebar construction	Easton EA50 Riser
Handlebar extender	Optional
Handlebar stem details	Easton EA50
Headset size	1 1/8 (inches) IS-3E

Gearing Specifications

Bicycle chain	Shimano HG73-9
Bottom bracket shell width	Not Available
Bottom bracket type	Shimano Hollowtech II
Crankset parts and sizes	Shimano LX Hollowtech II
Gear shift levers	Shimano LX Rapid Fire
Rear gear set	11 - 34 Teeth 9-speed

GT Marathon 9R Fork System Data

Derailleur (Front)	Shimano LX
Derailleur (Rear)	Shimano XT Shadow
Fork material	Single Crown Aluminum and magnesium
Fork type	100 (millimeters) Travel RockShox Reba SL 29er

Other Specs of GT Marathon 9R

Component group sets	Shimano Mix
Pedals details	Crank Brothers Candy C
Rear shock absorber	4 (inches) Travel RockShox Monarch 3.1
Saddle seat	WTB Pure V Race
Seat post extension	Easton EA50