GT JETSTREAM 1999 VS Nishiki OPTIMA 1993 specs comparison

GT Jetstream

General Infos

Model	Jetstream
Manufacturer	GT
Year of production	1999
Current price	🛒 View Price →
Color choice	- Vivid Green -Regal Blue
Sizes	- 14 (inches) - 16 (inches) - 18 (inches) - 20 (inches) - 22 (inches)
Sizes	- 14 (inches) - 16 (inches) - 18 (inches) - 20 (inches) - 22 (inches)

Wheels And Breaking System

Bike front tire	700 X 40c Multi-terrain
Bike rear tire	Not Available
Bike wheel size	700c Wheels
Brakeset type	Alloy Levers Shimano Nexave Modulated V Brakes
Hubs for disc brakes	Rear: Shimano Nexus Roller Brake Front: Shimano Altus
Rims manufacturer	36-hole Araya PX-645
Spoke nipples type	Not Available
Spoke wheel	2.0 (millimeters) Straight Gauge Stainless Steel

Frame and Body Specs

Frame materials	7000 aluminum c
Frame type	Welded
Handlebar construction	High-rise Steel
Handlebar extender	Optional
Handlebar stem details	High Rise Aluminum
Headset size	1 1/8 (inches) Sealed Mechanism

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) Shimano CN-IG31
Bottom bracket shell width	Not Available
Bottom bracket type	Shimano Cartridge
Crankset parts and sizes	24/34/42 Teeth Shimano AceraX
Gear shift levers	Grip Shift MRX
Rear gear set	11 - 28 Teeth 7-speed

GT Jetstream Fork System Data

Derailleur (Front)	Shimano AceraX Top-swing
Derailleur (Rear)	Shimano Alivio
Fork material	Aluminum and chromoly
Fork type	1.6 (inches) Travel RST 801

Other Specs of GT Jetstream

Component group sets	Hybrid Mix
Pedals details	Alloy With Alloy Cage
Rear shock absorber	Not Available
Saddle seat	GT
Seat post extension	Adjustable Kalloy Aluminum Suspension

Nishiki Optima

General Infos

Model	Optima
Manufacturer	Nishiki
Year of production	1993
Current price	🛒 View Price →
Color choice	-Not found
Sizes	- 15.5 - 17.5 - 19.5 - 21.5

Wheels And Breaking System

Bike front tire	700 X 35c Cross
Bike rear tire	Not Available
Bike wheel size	700c Wheels
Brakeset type	Levers Shimano 400CX Brakes
Hubs for disc brakes	Shimano 400CX
Rims manufacturer	32-hole Ritchey USA Vantage Cross Sport
Spoke nipples type	Not Available
Spoke wheel	Not Available

Frame and Body Specs

Frame materials	Chrome-moly
Frame type	TIG-welded Steel
Handlebar construction	Alloy Flat 6deg
Handlebar extender	Not Available
Handlebar stem details	TIG Welded Rise With CRO-MO Clamp
Headset size	Not Available

Gearing Specifications

Bicycle chain	Shimano CN-HG50
Bottom bracket shell width	Not Available
Bottom bracket type	Not Available
Crankset parts and sizes	20/32/40 Teeth Shimano 400CX
Gear shift levers	Shimano 400CX Rapidfire Plus
Rear gear set	11 - 19 Teeth 7-speed

Nishiki Optima Fork System Data

Derailleur (Front)	Shimano 700CX
Derailleur (Rear)	Shimano 700CX
Fork material	Not Available
Fork type	Chrome-moly

Other Specs of Nishiki Optima

Component group sets	Shimano 400CX Rapidfire Plus
Pedals details	Steel Cage and alloy Body With Clips And Straps
Rear shock absorber	Not Available
Saddle seat	Vetta (inches)SL (inches) Style With Waterproof Cover
Seat post extension	Kalloy SP 248 Alloy