Kona BIG UNIT 2009 VS Trek 3900 2007 specs comparison

Kona Big Unit

General Infos

Model	Big Unit
Manufacturer	Kona
Year of production	2009
Current price	Check price Here ==>
Color choice	-Lime Green Metallic
Sizes	- 16 (inches) - 18 (inches) - 19 (inches) - 20 (inches) - 22 (inches)
Sizes	- 16 (inches) - 18 (inches) - 19 (inches) - 20 (inches) - 22 (inches)

Wheels And Breaking System

Bike front tire	29 X 2.10 (inches) Maxxis Ignitor
Bike rear tire	Not Available
Bike wheel size	29 (inches) Wheels
Brakeset type	Shimano M575 Hydraulic Levers Shimano M575 Disc Brakes
Hubs for disc brakes	Formula Disc
Rims manufacturer	Mavic TN 719
Spoke nipples type	Not Available
Spoke wheel	15ga. Sandvic Stainless

Frame and Body Specs

Frame materials	Kona Race Light Scandium Butted
Frame type	TIG-welded
Handlebar construction	Kona XC and BC Deluxe Riser
Handlebar extender	Optional
Handlebar stem details	Kona XC and BC Deluxe
Headset size	1 1/8 (inches) FSA Orbit DL

Gearing Specifications

Bicycle chain	KMC Z610
Bottom bracket shell width	73 (millimeters)
Bottom bracket type	Race Face X-Type
Crankset parts and sizes	32 Teeth Race Face Atlas SS With Bashguard
Gear shift levers	Not Available
Rear gear set	18 Teeth 1-speed

Kona Big Unit Fork System Data

Derailleur (Front)	Not Available
Derailleur (Rear)	Not Available
Fork material	Single
Fork type	80 (millimeters) Travel Fox 32 F29 RL

Other Specs of Kona Big Unit

Component group sets	Single Speed Mix
Pedals details	Shimano PD-M520
Rear shock absorber	Not Available
Saddle seat	WTB Rocket V Comp
Seat post extension	Kona XC and BC Deluxe

Trek 3900

General Infos

Model	3900
Manufacturer	Trek
Year of production	2007
Current price	Check price Here ==>
Color choice	- Matte Black and Matte Smooth Silver -Trans Blue
Sizes	- 13 (inches) - 16 (inches) - 18 (inches) - 19.5 (inches) - 21 (inches) - 22.5 (inches)

Wheels And Breaking System

Bike front tire	26 X 2.00 (inches) Bontrager Connection Trail
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Shimano EF-50 Levers Tektro V Brakes
Hubs for disc brakes	Rear: Shimano RM-30 Front: Alloy
Rims manufacturer	Matrix 550
Spoke nipples type	Not Available
Spoke wheel	Not Available

Frame and Body Specs

Frame materials	Alpha Aluminum
Frame type	TIG-welded
Handlebar construction	Bontrager Approved
Handlebar extender	Optional
Handlebar stem details	Bontrager Approved
Headset size	Aheadset Slimstak

Gearing Specifications

Bicycle chain	Not Available
Bottom bracket shell width	Not Available
Bottom bracket type	Not Available
Crankset parts and sizes	24/34/42 Teeth SR XCC-T102
Gear shift levers	Shimano EF-50
Rear gear set	11 - 32 Teeth 8-speed

Trek 3900 Fork System Data

Derailleur (Front)	Shimano C-050
Derailleur (Rear)	Shimano Acera
Fork material	Single Crown Aluminum and steel
Fork type	70 (millimeters) Travel InSync Grind 1

Other Specs of Trek 3900

Component group sets	Shimano Mix
Pedals details	Nylon Platform
Rear shock absorber	Not Available
Saddle seat	Bontrager Sport
Seat post extension	Bontrager Approved