Eastern Bikes THUNDERBIRD 2008 VS Robinson JR. 1997 specs comparison

Eastern Bikes Thunderbird

General Infos

Model	Thunderbird
Manufacturer	Eastern Bikes
Year of production	2008
Current price	🛒 View Price →
Color choice	- Black -Blue
Sizes	- 21.5 TT (inches)
Sizes	- 21.5 TT (inches)

Wheels And Breaking System

Bike front tire	Rear: 26 X 2.10 (inches) Kenda NPJ 1052 Front: 26 X 2.35 (inches) Kenda Small Block Eight
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Tektro ML-570 Rear Levers Tektro Aquila Mechanical Disc Rear Brakes
Hubs for disc brakes	Rear: Eastern LB9 Front: Eastern Sealed 20 (millimeters) Disc
Rims manufacturer	32-hole Rear: Kinlin BM25 Front: Wienmann HL32
Spoke nipples type	Brass
Spoke wheel	14ga. Straight Gauge Stainless Steel

Frame and Body Specs

Frame materials	Chromoly
Frame type	TIG-welded
Handlebar construction	Eastern Steel 2.0t
Handlebar extender	Optional
Handlebar stem details	Eastern Choker
Headset size	1 1/8 (inches) Internal

Gearing Specifications

Bicycle chain	KMC 510HX
Bottom bracket shell width	Not Available
Bottom bracket type	Spanish
Crankset parts and sizes	Eastern Medusa Lite 25t Teeth Eastern 3pc Raptor
Gear shift levers	Not Available
Rear gear set	12 Teeth 1-speed

Eastern Bikes Thunderbird Fork System Data

Derailleur (Front)	Not Available
Derailleur (Rear)	Not Available
Fork material	Single Crown Magnesium and cr-mo
Fork type	80 (millimeters) Travel RST Space Free

Other Specs of Eastern Bikes Thunderbird

Component group sets	Mountain Mix
Pedals details	Wellgo 313
Rear shock absorber	Not Available
Saddle seat	Eastern Pinner
Seat post extension	Straight Post

Robinson Jr.

General Infos

Model	Jr.
Manufacturer	Robinson
Year of production	1997
Current price	🛒 View Price →
Color choice	-Ball burnished
Sizes	- Boys

Wheels And Breaking System

Bike front tire	20 X 1 1/8 (inches) GT AA Pro Kevlar
Bike rear tire	Not Available
Bike wheel size	20 (inches) Wheels
Brakeset type	Dia-Compe MX-122 Jr. Levers Dia-Compe Aluminum Side-pull Caliper Rear Brakes
Hubs for disc brakes	GT Mohawk
Rims manufacturer	36-hole Araya
Spoke nipples type	Alloy Nipples
Spoke wheel	2.0 (millimeters) Straight Gauge Steel

Frame and Body Specs

Frame materials	Aluminum
Frame type	TIG-welded
Handlebar construction	Robinson Aluminum
Handlebar extender	Not Available
Handlebar stem details	GT Aluminum
Headset size	1 (inches) Threadless Steel

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) KMC 410
Bottom bracket shell width	68 (millimeters) English
Bottom bracket type	Not Available
Crankset parts and sizes	39 Teeth 3-piece Aluminum
Gear shift levers	Not Available
Rear gear set	16 Teeth 1-speed

Robinson Jr. Fork System Data

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

Other Specs of Robinson Jr.

Component group sets	Not Available
Pedals details	GT Aluminum Platforms
Rear shock absorber	Not Available
Saddle seat	GT Plastic
Seat post extension	Aluminum Pillar