Koga Miyata GRAN RACER 2004 VS Sampson Z7 PRO ROAD DURA ACE 2002 specs comparison

Koga Miyata Gran Racer

General Infos

Model	Gran Racer
Manufacturer	Koga Miyata
Year of production	2004
Current price	Check price Here ==>
Color choice	-Blue Matte
Sizes	- 46cm (centimeters) - 52cm (centimeters) - 54cm (centimeters) - 56cm (centimeters) - 58cm (centimeters) - 60cm (centimeters) - 63cm (centimeters) - 66cm (centimeters)
Sizes	- 46cm (centimeters) - 52cm (centimeters) - 54cm (centimeters) - 56cm (centimeters) - 58cm (centimeters) - 60cm (centimeters) - 63cm (centimeters) - 66cm (centimeters)

Wheels And Breaking System

Bike front tire	700 X 23c Continental Grand Prix
Bike rear tire	Not Available
Bike wheel size	700c Wheels
Brakeset type	Shimano Tiagra STI Dual Control Levers Shimano Tiagra Dual Pivot Brakes
Hubs for disc brakes	Shimano Tiagra
Rims manufacturer	36-hole Mach1 RJ350
Spoke nipples type	Brass Nipples
Spoke wheel	Straight Gauge Sapim Stainless Steel

Frame and Body Specs

Frame materials	7005 aluminum c
Frame type	TIG-welded
Handlebar construction	ITM Super Italian Pro 330
Handlebar extender	Not Available
Handlebar stem details	ITM Forged Lite Luxe
Headset size	1 1/8 (inches) Integrated Cane Creek ISDD

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) Shimano CN-HG73
Bottom bracket shell width	68 (millimeters) English
Bottom bracket type	113 (millimeters) Spindle Shimano BB-UN53
Crankset parts and sizes	30/42/52 Teeth Shimano Tiagra
Gear shift levers	Shimano Tiagra STI Dual Control
Rear gear set	12 - 25 Teeth 9-speed

Koga Miyata Gran Racer Fork System Data

Derailleur (Front)	Bottom-pull and clamp-on 31.8 (millimeters) Shimano Tiagra
Derailleur (Rear)	Shimano Tiagra SS
Fork material	Aero Crown Carbon Fiber
Fork type	Carbon Aero

Other Specs of Koga Miyata Gran Racer

Component group sets	Road Mix
Pedals details	Koga VP-R70
Rear shock absorber	Not Available
Saddle seat	Selle San Marco Base
Seat post extension	27.2 (millimeters) Diameter Aluminum Micro-adjust

Sampson z7 Pro Road Dura Ace

General Infos

Model	z7 Pro Road Dura Ace
Manufacturer	Sampson
Year of production	2002
Current price	Check price Here ==>
Color choice	-Polished
Sizes	- 50 - 52 - 54 - 56 - 58 - 60 - 62

Wheels And Breaking System

Bike front tire	700 X 23c Michelin Axial Pro
Bike rear tire	Not Available
Bike wheel size	700c Wheels
Brakeset type	Shimano Dura-Ace STI Dual Control Levers Shimano Dura-Ace Dual Pivot Brakes
Hubs for disc brakes	Cane Creek
Rims manufacturer	20-hole and 24-hole Cane Creek Aerohead
Spoke nipples type	Aluminum Nipples
Spoke wheel	14/15 Ga. Double-butted Stainless Steel

Frame and Body Specs

Frame materials	3Al and 2.5V Titanium
Frame type	TIG-welded
Handlebar construction	Kestrel EMS Carbon
Handlebar extender	Not Available
Handlebar stem details	3T Forgie
Headset size	1 1/8 (inches) Threadless Cane Creek S-2

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) Shimano CN-HG72
Bottom bracket shell width	68 (millimeters) English
Bottom bracket type	118 (millimeters) Spindle Shimano BB-7700
Crankset parts and sizes	30/39/53 Teeth Shimano Dura-Ace Triple
Gear shift levers	Shimano Dura-Ace STI Dual Control
Rear gear set	Optional Of Gearing 9-speed

Sampson z7 Pro Road Dura Ace Fork System Data

Derailleur (Front)	Bottom-pull and clamp-on 31.8 (millimeters) Shimano Dura-Ace
Derailleur (Rear)	Shimano Dura-Ace GS
Fork material	Sloping Crown Carbon Fiber Composite With Aluminum Steerer
Fork type	Reynolds Ouzo Comp

Other Specs of Sampson z7 Pro Road Dura Ace

Component group sets	Shimano Dura-Ace Triple
Pedals details	Optional
Rear shock absorber	Not Available
Saddle seat	Optional
Seat post extension	27.2 (millimeters) Diameter Thomson Elite