DK PROMOTION 1998 VS GT AIR 2009 specs comparison

DK Promotion

General Infos

Model	Promotion
Manufacturer	DK
Year of production	1998
Current price	Check price Here ==>
Color choice	- blue - chrome-plated - red - yellow -Black
Sizes	- Pro - Pro XL - Pro XXL
Sizes	- Pro - Pro XL - Pro XXL

Wheels And Breaking System

Bike front tire	Rear: 20 X 1.75 (inches) Tioga Comp III Front: 20 X 2.125 (inches) Tioga Comp III
Bike rear tire	Not Available
Bike wheel size	20 (inches) Wheels
Brakeset type	Shimano DX BMX Levers Shimano DX BMX V-brake Brakes
Hubs for disc brakes	DK Sealed
Rims manufacturer	36-hole Sun Rims Rhyno Lite
Spoke nipples type	Brass Nipples
Spoke wheel	2.0 (millimeters) Straight Gauge Asahi Steel

Frame and Body Specs

Frame materials	Chromoly
Frame type	TIG-welded
Handlebar construction	DK Pro
Handlebar extender	Not Available
Handlebar stem details	DK XL
Headset size	1 1/8 (inches) Threadless Aheadset

Gearing Specifications

Bicycle chain	1/2 X 1/8 (inches) KMC 410
Bottom bracket shell width	American 24tpi
Bottom bracket type	Victor VPB-35
Crankset parts and sizes	44 Teeth 1-piece Chromoly
Gear shift levers	Not Available
Rear gear set	16 Teeth 1-speed

DK Promotion Fork System Data

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

Other Specs of DK Promotion

Component group sets	Not Available
Pedals details	DK Aluminum Platforms
Rear shock absorber	Not Available
Saddle seat	DK Pro
Seat post extension	26.8 (millimeters) Diameter DK Micro-adjust

GT Air

General Infos

Model	Air
Manufacturer	GT
Year of production	2009
Current price	Check price Here ==>
Color choice	-White
Sizes	- 19.5 TT (inches)

Wheels And Breaking System

Bike front tire	20 X 2.10 (inches) GT Air Bags
Bike rear tire	Not Available
Bike wheel size	20 (inches) Wheels
Brakeset type	Tektro 289A Levers Tektro 907 U-brake Brakes
Hubs for disc brakes	Rear: Sealed Mech Freewheel Front: Sealed Mech
Rims manufacturer	Mags
Spoke nipples type	Not Available
Spoke wheel	Not Available

Frame and Body Specs

Frame materials	High Tensile Steel
Frame type	TIG-welded
Handlebar construction	GT Dirt and street Hi-Ten
Handlebar extender	Optional
Handlebar stem details	GT Freestyle Aluminum
Headset size	1 1/8 (inches) TH

Gearing Specifications

Bicycle chain	KMC Z510
Bottom bracket shell width	Not Available
Bottom bracket type	Steel
Crankset parts and sizes	42 Teeth Steel One Piece
Gear shift levers	Not Available
Rear gear set	16 Teeth 1-speed

GT Air Fork System Data

Derailleur (Front)	Not Available
Derailleur (Rear)	Not Available
Fork material	Unicrown Crown High-tensile Steel
Fork type	GT Freestyle

Other Specs of GT Air

Component group sets	BMX
Pedals details	Resin GT Jump Design
Rear shock absorber	Not Available
Saddle seat	GT Freestyle
Seat post extension	25.4 (millimeters) Diameter Steel