Boulder Bikes SIRIUS 2000 VS Counterpoint OPUS TRIO 1994 specs comparison

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
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

Counterpoint Opus Trio

General Infos

Model	Opus Trio
Manufacturer	Counterpoint
Year of production	1994
Current price	🛒 View Price →
Color choice	-Not found
Sizes	- 18 (inches) - 20 (inches) - 22 (inches)

Wheels And Breaking System

Bike front tire	Rear: 20 X 1.75 (inches) Front: 20 X 1.75 (inches) Tioga Comp ST
Bike rear tire	Not Available
Bike wheel size	20 (inches) Wheels
Brakeset type	F Hub: Sachs Drum R: Arai Brakes Levers Rim: Self Energ.
Hubs for disc brakes	Sachs 3x7 Rear With Custom Alloy Sealed Front
Rims manufacturer	36-hole Araya 7X
Spoke nipples type	Not Available
Spoke wheel	Not Available

Frame and Body Specs

Frame materials	4130 chromoly c
Frame type	TIG-welded Steel
Handlebar construction	Specialized Rockbar
Handlebar extender	Not Available
Handlebar stem details	SR CYS 50
Headset size	Not Available

Gearing Specifications

Bicycle chain	Sedis
Bottom bracket shell width	Not Available
Bottom bracket type	Not Available
Crankset parts and sizes	38/50/61 Teeth Sugino Fuse
Gear shift levers	Shimano
Rear gear set	12 - 32 Teeth 7-speed

Counterpoint Opus Trio Fork System Data

Derailleur (Front)	Shimano Deore XT
Derailleur (Rear)	Shimano Deore XT
Fork material	Not Available
Fork type	Chromoly

Other Specs of Counterpoint Opus Trio

Component group sets	Shimano
Pedals details	Not Available
Rear shock absorber	Not Available
Saddle seat	TFI
Seat post extension	Specialized