Dirt Research ECHO CANYON 1997 VS Burley ROCK N ROLL 1999 specs comparison

Dirt Research Echo Canyon

General Infos

Model	Echo Canyon
Manufacturer	Dirt Research
Year of production	1997
Current price	Check price Here ==>
Color choice	-Lite titanium
Sizes	- Captain 18/stoker 16 (inches) - captain 20/stoker 18 (inches) - captain 22/stoker 18 (inches)
Sizes	- Captain 18/stoker 16 (inches) - captain 20/stoker 18 (inches) - captain 22/stoker 18 (inches)

Wheels And Breaking System

Bike front tire	26 X 1.90 (inches) Tioga City Slicker
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Shimano Deore LX Levers Shimano Deore LX V-Brake Brakes
Hubs for disc brakes	Rear: Shimano Alivio and silent Clutch Front: Shimano Alivio
Rims manufacturer	36-hole Sun Rims CRT16 II
Spoke nipples type	Brass Nipples
Spoke wheel	2.0 (millimeters) Straight Gauge DT Stainless Steel

Frame and Body Specs

Frame materials	Butted True Temper Tandem Chromoly
Frame type	TIG-welded
Handlebar construction	Dirt Research 140g Aluminum
Handlebar extender	Dirt Research
Handlebar stem details	Girvin Flexstem
Headset size	1 1/4 (inches) YST

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) Shimano CN-IG51
Bottom bracket shell width	68 (millimeters) Threadless and 73 (millimeters) English
Bottom bracket type	110 (millimeters) Spindle Eccentric Shimano BB-LP26
Crankset parts and sizes	24/34/42 Teeth Shimano Alivio
Gear shift levers	Shimano STXAlivio MC-37 RapidFire SL
Rear gear set	11 - 30 Teeth 7-speed

Dirt Research Echo Canyon Fork System Data

Derailleur (Front)	Top-pull and clamp-on 31.8 (millimeters) Shimano Alivio Top-swing
Derailleur (Rear)	Shimano Alivio
Fork material	Butted Unicrown Crown Tange Tandem Chromoly
Fork type	Tange Super Size Tandem

Other Specs of Dirt Research Echo Canyon

Component group sets	Shimano Alivio
Pedals details	Dirt Research Aluminum
Rear shock absorber	Not Available
Saddle seat	Dirt Research Racing
Seat post extension	29.8 (millimeters) Diameter Dirt Research

Burley Rock n Roll

General Infos

Model	Rock n Roll
Manufacturer	Burley
Year of production	1999
Current price	Check price Here ==>
Color choice	-Shamrock Green
Sizes	- Captain 18/stoker 15 (inches) - captain 19.5/stoker 17 (inches) - captain 21/stoker 18.5 (inches)

Wheels And Breaking System

Bike front tire	Rear: 26 X 1.95 (inches) Ritchey Speed Max Omega Front: 26 X 1.95 (inches) Ritchey Speed Max Alpha
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Shimano Deore LX Levers Shimano Deore LX V-Brake Brakes
Hubs for disc brakes	Shimano Tandem HF-07
Rims manufacturer	40-hole Rear: Bontrager Maverick Asy (millimeters)etric Front: Bontrager Maverick
Spoke nipples type	Brass Nipples
Spoke wheel	2.0 (millimeters) Straight Gauge Wheelsmith Stainless Steel

Frame and Body Specs

Frame materials	Burley Exclusive True Temper Tandem Chromoly
Frame type	TIG-welded
Handlebar construction	Ritchey Road Logic Pro
Handlebar extender	Optional
Handlebar stem details	Burley Chromoly and Ritchey CompLite
Headset size	1 1/8 (inches) Threadless Ritchey Logic

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) Shimano CN-HG50
Bottom bracket shell width	82 (millimeters) Special Tandem
Bottom bracket type	117 (millimeters) Spindle Burley Tandem Precision Sealed
Crankset parts and sizes	28/42/52 Teeth Sugino Fuse 500
Gear shift levers	Grip Shift Quarz
Rear gear set	11 - 30 Teeth 8-speed

Burley Rock n Roll Fork System Data

Derailleur (Front)	Bottom-pull and clamp-on 28.6 (millimeters) Shimano 105
Derailleur (Rear)	Shimano Deore XT SGS
Fork material	Burley Exclusive Unicrown Crown True Temper Tandem Chromoly
Fork type	Burley

Other Specs of Burley Rock n Roll

Component group sets	Tandem Mix
Pedals details	Ritchey Logic
Rear shock absorber	Not Available
Saddle seat	Selle Italia Future Race
Seat post extension	26.6 (millimeters) Diameter Ritchey Expert