S & B Recumbent TANDEM 1997 VS Boulder Bikes SIRIUS 2000 specs comparison

S & B Recumbent Tandem

General Infos

Model	Tandem
Manufacturer	S & B Recumbent
Year of production	1997
Current price	🛒 View Price →
Color choice	-Custom
Sizes	- Custom
Sizes	- Custom

Wheels And Breaking System

Bike front tire	Rear: 26 X 1.50 (inches) Primo HP Front: 16 X 1 3/8 (inches) Primo HP
Bike rear tire	Not Available
Bike wheel size	Rear: 26 (inches) Wheels Front: 16 (inches)
Brakeset type	Sachs 5000 Levers Sachs Drum Brakes
Hubs for disc brakes	Rear: Sachs 3 X 7 Front: Sachs Drum
Rims manufacturer	28-hole and 36-hole Alesa 613
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	Custom
Handlebar extender	Not Available
Handlebar stem details	Not Available
Headset size	1 1/8 (inches) Threadless Tioga

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) KMC SS-90S
Bottom bracket shell width	68 (millimeters) English
Bottom bracket type	110 (millimeters) Spindle Sachs
Crankset parts and sizes	Sugino Impel 350
Gear shift levers	Sachs Power Grip Extreme
Rear gear set	13 - 30 Teeth

S & B Recumbent Tandem Fork System Data

Derailleur (Front)	Sachs New Success
Derailleur (Rear)	Sachs New Success
Fork material	Unicrown Crown Chromoly
Fork type	Not Available

Other Specs of S & B Recumbent Tandem

Component group sets	Sachs New Success
Pedals details	Optional
Rear shock absorber	Not Available
Saddle seat	Custom
Seat post extension	Not Available

Boulder Bikes Sirius

General Infos

Model	Sirius
Manufacturer	Boulder Bikes
Year of production	2000
Current price	🛒 View Price →
Color choice	-All colors available
Sizes	- Rider can adjust manually

Wheels And Breaking System

Bike front tire	20 X 1.50 (inches)
Bike rear tire	Not Available
Bike wheel size	20 (inches) Wheels
Brakeset type	Magura Levers Magura HS 33 Brakes
Hubs for disc brakes	Rear: SRAM 3x7 Front: SRAM Plasma
Rims manufacturer	32-hole Sun Rims CR18
Spoke nipples type	Brass Nipples
Spoke wheel	2.0 (millimeters) Straight Gauge DT Stainless Steel

Frame and Body Specs

Frame materials	Butted With Replaceable Derailleur Hanger 7005 Aluminum
Frame type	TIG-welded
Handlebar construction	RANS Tilt Bar-Stem Combo
Handlebar extender	Not Available
Handlebar stem details	RANS Tilt Bar-Stem Combo
Headset size	1 (inches) Threadless Chris King NoThreadSet

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) SRAM PC-61
Bottom bracket shell width	68 (millimeters) English
Bottom bracket type	122.5 (millimeters) Spindle Shimano BB-UN72
Crankset parts and sizes	38/50/60 Teeth Sugino XD600 Tandem
Gear shift levers	SRAM Quartz
Rear gear set	11 - 30 Teeth 7-speed

Boulder Bikes Sirius Fork System Data

Derailleur (Front)	Bottom-pull and clamp-on 31.8 (millimeters) Shimano Ultegra
Derailleur (Rear)	Shimano XTR SGS
Fork material	Triple-clamp Crown Aluminum and chromoly
Fork type	1.0 (inches) Travel Ballistic 600 XL

Other Specs of Boulder Bikes Sirius

Component group sets	Recumbent Mix
Pedals details	Optional
Rear shock absorber	3.0 (inches) Travel Works Performance and Boulder Bikes Spring and Oil
Saddle seat	RANS Recumbent Seat
Seat post extension	Control Tech Control Post