Electra BOMBER 4 1997 VS Trek CALYPSO 2002 specs comparison

Electra Bomber 4

General Infos

Model	Bomber 4
Manufacturer	Electra
Year of production	1997
Current price	🛒 View Price →
Color choice	-Fire red
Sizes	- 18.5 (inches)
Sizes	- 18.5 (inches)

Wheels And Breaking System

Bike front tire	26 X 1.95 (inches) Electra Dirtgrabber
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Tektro RBP-371AP Levers Shimano Nexus Roller Brake and Tektro 873A Front Brakes
Hubs for disc brakes	Rear: Shimano Nexus Roller Brake Front: Aluminum Nutted
Rims manufacturer	36-hole Electra TA-8 Aluminum
Spoke nipples type	Brass Nipples
Spoke wheel	2.0 (millimeters) Straight Gauge Stainless Steel

Frame and Body Specs

Frame materials	4130 chromoly c
Frame type	TIG-welded
Handlebar construction	Aluminum
Handlebar extender	Not Available
Handlebar stem details	BMX 4-bolt Aluminum
Headset size	1 (inches) Steel

Gearing Specifications

Bicycle chain	1/2 X 1/8 (inches)
Bottom bracket shell width	68 (millimeters) English
Bottom bracket type	Shimano BB-CT91
Crankset parts and sizes	39 Teeth Cyclone CPI 9-100A
Gear shift levers	Shimano Inter-4 ST-4S20
Rear gear set	22 Teeth 4-speed Internal

Electra Bomber 4 Fork System Data

Derailleur (Front)	Not Available
Derailleur (Rear)	Not Available
Fork material	Unicrown Crown 4130 Chromoly
Fork type	CS 800

Other Specs of Electra Bomber 4

Component group sets	Shimano Nexus
Pedals details	Victor VP-747
Rear shock absorber	Not Available
Saddle seat	Electra
Seat post extension	26.8 (millimeters) Diameter Kalloy Aluminum

Trek Calypso

General Infos

Model	Calypso
Manufacturer	Trek
Year of production	2002
Current price	🛒 View Price →
Color choice	- Red -Grey
Sizes	- 20 (inches) - womens 17 (inches)

Wheels And Breaking System

Bike front tire	26 X 2.00 (inches) Whitewall
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	ProMax Linear-pull Levers ProMax Linear-pull Brakes
Hubs for disc brakes	Nutted Aluminum
Rims manufacturer	Matrix 550
Spoke nipples type	Not Available
Spoke wheel	14ga. Straight Gauge Stainless Steel

Frame and Body Specs

Frame materials	Aluminum
Frame type	TIG-welded
Handlebar construction	Cruiser Steel
Handlebar extender	Not Available
Handlebar stem details	Forged Aluminum
Headset size	1 1/8 (inches) Threadless Sealed Mechanism

Gearing Specifications

Bicycle chain	1/2 X 1/8 (inches)
Bottom bracket shell width	Not Available
Bottom bracket type	Not Available
Crankset parts and sizes	40 Teeth 1-piece Chromoly
Gear shift levers	SRAM MRX Plus
Rear gear set	13 - 34 Teeth 7-speed

Trek Calypso Fork System Data

Derailleur (Front)	Not Available
Derailleur (Rear)	Shimano Tourney TY-40GS
Fork material	Unicrown Crown Hi-tensile Steel
Fork type	Trek

Other Specs of Trek Calypso

Component group sets	Not Available
Pedals details	Resin Platform
Rear shock absorber	Not Available
Saddle seat	Trek Webspring Comfort
Seat post extension	Aluminum