DK OPSIS 2009 VS GT BUMP 2011 specs comparison

DK Opsis

General Infos

Model	Opsis
Manufacturer	DK
Year of production	2009
Current price	Check price Here ==>
Color choice	- Silver Metallic -Apple Green Metallic
Sizes	- 19 TT (inches)
Sizes	- 19 TT (inches)

Wheels And Breaking System

Bike front tire	20 (inches) Kenda
Bike rear tire	Not Available
Bike wheel size	20 (inches) Wheels
Brakeset type	Unavailable Rear Levers Tektro Alloy U-brake Brakes
Hubs for disc brakes	Rear: Free Coaster 10 (millimeters) Axle Front: 10 (millimeters) Axle
Rims manufacturer	Alienation PBR
Spoke nipples type	Not Available
Spoke wheel	14ga. Stainless

Frame and Body Specs

Frame materials	4130 Chromoly Mainframe
Frame type	TIG-welded
Handlebar construction	DK Flatland Specific 2-pc
Handlebar extender	Optional
Handlebar stem details	Alloy Front Load 40 (millimeters)
Headset size	1 1/8 (inches) Cane Creek Integrated

Gearing Specifications

Bicycle chain	KMC
Bottom bracket shell width	Not Available
Bottom bracket type	Mid Sealed BB
Crankset parts and sizes	28 Teeth 3 Piece Tubular Chromoly
Gear shift levers	Not Available
Rear gear set	14 Teeth 1-speed

DK Opsis Fork System Data

Derailleur (Front)	Not Available
Derailleur (Rear)	Not Available
Fork material	Unicrown Crown 4130 Chromoly
Fork type	Not Available

Other Specs of DK Opsis

Component group sets	BMX
Pedals details	Plastic Platform
Rear shock absorber	Not Available
Saddle seat	Plastic Flatland With 7 (millimeters) Rails
Seat post extension	25.4 (millimeters) Diameter Alloy Pillar

GT Bump

General Infos

Model	Bump
Manufacturer	GT
Year of production	2011
Current price	Check price Here ==>
Color choice	- matte green -White
Sizes	- Not available

Wheels And Breaking System

Bike front tire	Rear: 20 X 2.1 (inches) Kenda Ko-Rolla Front: 20 X 2.125 (inches) Kenda K-Rad
Bike rear tire	Not Available
Bike wheel size	20 (inches) Wheels
Brakeset type	Unavailable Front and Tektro 273A Rear Levers Unavailable Front and Tektro FX340R Rear Brakes
Hubs for disc brakes	Rear: GT Alloy Front: GT Aluminum
Rims manufacturer	32-hole and 36-hole Alienation PBR
Spoke nipples type	Brass
Spoke wheel	14ga.

Frame and Body Specs

Frame materials	CroMo
Frame type	Steel
Handlebar construction	GT Pro Steel
Handlebar extender	Optional
Handlebar stem details	GT Freestyle Drop
Headset size	1 1/8 (inches) Integrated

Gearing Specifications

Bicycle chain	KMC Z510
Bottom bracket shell width	Not Available
Bottom bracket type	Sealed Bearing
Crankset parts and sizes	25t Teeth CroMO 3 Piece
Gear shift levers	Not Available
Rear gear set	9 teeth c

GT Bump Fork System Data

Derailleur (Front)	Not Available
Derailleur (Rear)	Not Available
Fork material	Steel
Fork type	Cromo

Other Specs of GT Bump

Component group sets	BMX Mix
Pedals details	GT Dirt and Street Platform
Rear shock absorber	Not Available
Saddle seat	Pivotal Street Design
Seat post extension	25.4 (millimeters) Diameter Pivotal