GT FLY 2004 VS Hoffman SD-4 2001 specs comparison

GT Fly

General Infos

Model	Fly
Manufacturer	GT
Year of production	2004
Current price	Check price Here ==>
Color choice	- Yellow -Blue
Sizes	- One
Sizes	- One

Wheels And Breaking System

Bike front tire	Rear: 20 X 2.10 (inches) GT LP-4 Front: 20 X 2.20 (inches) GT 1453
Bike rear tire	Not Available
Bike wheel size	20 (inches) Wheels
Brakeset type	Tektro 289A Rear Levers Tektro 907A U-brake Rear Brakes
Hubs for disc brakes	Nutted Steel
Rims manufacturer	36-hole Jalco
Spoke nipples type	Brass Nipples
Spoke wheel	14ga. Straight Gauge Stainless Steel

Frame and Body Specs

Frame materials	Chromoly Down Tube and hi-tensile Steel
Frame type	TIG-welded
Handlebar construction	GT BMX
Handlebar extender	Not Available
Handlebar stem details	GT Piston
Headset size	1 1/8 (inches) Threadless Victor VP-A74F With SST Oryg

Gearing Specifications

Bicycle chain	1/2 X 3/16 (inches) KMC Z410
Bottom bracket shell width	American
Bottom bracket type	Not Available
Crankset parts and sizes	39 Teeth GT One-piece
Gear shift levers	Not Available
Rear gear set	16 Teeth 1-speed

GT Fly Fork System Data

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

Other Specs of GT Fly

Component group sets	Not Available
Pedals details	GT BMX Design Aluminum
Rear shock absorber	Not Available
Saddle seat	9 (millimeters) Rails GT Jr Jump
Seat post extension	25.4 (millimeters) Diameter Aluminum

Hoffman SD-4

General Infos

Model	SD-4
Manufacturer	Hoffman
Year of production	2001
Current price	Check price Here ==>
Color choice	-Red and Chrome
Sizes	- Pro

Wheels And Breaking System

Bike front tire	20 X 1.95 (inches) Hoffman Bikes Skidmarks
Bike rear tire	Not Available
Bike wheel size	20 (inches) Wheels
Brakeset type	Dia-Compe MX-101 Levers Tektro 990 U-brake Brakes
Hubs for disc brakes	Keyin Aluminum
Rims manufacturer	48-hole Hoffman Bikes HighRoller CP
Spoke nipples type	Aluminum Nipples
Spoke wheel	2.0 (millimeters) Straight Gauge Steel

Frame and Body Specs

Frame materials	4130 chromoly c
Frame type	TIG-welded
Handlebar construction	Hoffman Bikes Prodigy Bar
Handlebar extender	Optional
Handlebar stem details	HoffmanBikes SuperStem
Headset size	1 1/8 (inches) Threadless YST

Gearing Specifications

Bicycle chain	1/2 X 1/8 (inches) KMC 410
Bottom bracket shell width	Not Available
Bottom bracket type	One Piece
Crankset parts and sizes	44 Teeth 1-piece Chromoly 175 (millimeters)
Gear shift levers	Not Available
Rear gear set	16 Teeth 1-speed

Hoffman SD-4 Fork System Data

Derailleur (Front)	Not Available
Derailleur (Rear)	Not Available
Fork material	4130 chromoly c
Fork type	Hoffman Bikes Prodigy Forks

Other Specs of Hoffman SD-4

Component group sets	Not Available
Pedals details	Wellgo LU-313
Rear shock absorber	Not Available
Saddle seat	Hoffman Bikes Logo
Seat post extension	25.4 (millimeters) Diameter Hoffman Bikes Prodigy Post