Trek SCRATCH AIR 8 2010 VS Porsche BIKE EVOLUTION 1998 specs comparison

Trek Scratch Air 8

General Infos

Model	Scratch Air 8
Manufacturer	Trek
Year of production	2010
Current price	Check price Here ==>
Color choice	-Matte Titanium
Sizes	- 15.5 (inches) - 17.5 (inches) - 19.5 (inches) - 21.5 (inches)
Sizes	- 15.5 (inches) - 17.5 (inches) - 19.5 (inches) - 21.5 (inches)

Wheels And Breaking System

Bike front tire	26 X 2.35 (inches) Bontrager FR-4
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Avid Elixer R Carbon Hydraulic Levers Avid Elixer R Carbon Disc Brakes
Hubs for disc brakes	Bontrager Cousin Earl Elite Disc
Rims manufacturer	Tubeless Ready Bontrager Cousin Earl Elite
Spoke nipples type	Not Available
Spoke wheel	Not Available

Frame and Body Specs

Frame materials	Alpha Red Aluminum
Frame type	TIG-welded
Handlebar construction	Bontrager Big Earl
Handlebar extender	Optional
Handlebar stem details	Bontrager Rhythm
Headset size	1 1/8 (inches) - 1 1/2 (inches) FSA No. 57E

Gearing Specifications

Bicycle chain	Not Available
Bottom bracket shell width	Not Available
Bottom bracket type	Not Available
Crankset parts and sizes	44/32/22 Teeth Shimano Deore XT
Gear shift levers	Shimano Deore XT
Rear gear set	11 - 34 Teeth 9-speed

Trek Scratch Air 8 Fork System Data

Derailleur (Front)	Direct Mount Shimano Deore XT
Derailleur (Rear)	Shimano Deore XT Shadow
Fork material	Single Crown Crown Alloy
Fork type	160 (millimeters) Travel Fox 36 Talas R With 20 (millimeters) QR Thru Axle

Other Specs of Trek Scratch Air 8

Component group sets	Mountain Mix
Pedals details	Not Available
Rear shock absorber	170 (millimeters) Travel Fox DHX Air 4.0
Saddle seat	Bontrager Rhythm
Seat post extension	31.6 (millimeters) Diameter Crank Brothers Joplin With Remote

Porsche Bike Evolution

General Infos

Model	Bike Evolution
Manufacturer	Porsche
Year of production	1998
Current price	Check price Here ==>
Color choice	-Yellow
Sizes	- 17 (inches) - 20 (inches)

Wheels And Breaking System

Bike front tire	26 X 2.10 (inches) Michelin Wild Gripper Kevlar
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Hope Hydraulic Levers Hope Hydraulic Disc Brakes
Hubs for disc brakes	Spengle
Rims manufacturer	Spengle 3-spoke Mag
Spoke nipples type	Not Available
Spoke wheel	Molded Carbon Fiber

Frame and Body Specs

Frame materials	SAE 7020 Aluminum
Frame type	TIG-welded
Handlebar construction	Aluminum
Handlebar extender	Aluminum
Handlebar stem details	Aluminum
Headset size	1 1/8 (inches) Threadless Aluminum

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) Sachs SC-M90
Bottom bracket shell width	68 (millimeters) English
Bottom bracket type	110 (millimeters) Spindle KSS Titan
Crankset parts and sizes	22/32/42 Teeth Carbon Fiber
Gear shift levers	Sachs Power Grip Extreme
Rear gear set	11 - 30 Teeth 8-speed

Porsche Bike Evolution Fork System Data

Derailleur (Front)	Top-pull and clamp-on 35.0 (millimeters) Sachs Plasma
Derailleur (Rear)	Sachs Plasma
Fork material	Double Triple-clamp Crown Aluminum and carbon Fiber
Fork type	Votec Inverted

Other Specs of Porsche Bike Evolution

Component group sets	Sachs Quarz
Pedals details	Wellgo Clipless
Rear shock absorber	Risse Astro
Saddle seat	Selle Italia Flite
Seat post extension	31.8 (millimeters) Diameter Carbon Fiber