Trek 820 2011 VS Specialized ROCKHOPPER A1 FS 1997 specs comparison

Trek 820 2011 comparison online with competitors

Trek 820

General Infos
Model 820
Manufacturer Trek
Year of production 2011
Current price Check price Here ==>   
Color choice -Gloss Black
Sizes - 13 (inches)
- 16 (inches)
- 18 (inches)
- 19.5 (inches)
- 21 (inches)
- 22.5 (inches)
Sizes - 13 (inches)
- 16 (inches)
- 18 (inches)
- 19.5 (inches)
- 21 (inches)
- 22.5 (inches)

Wheels And Breaking System

Bike front tire26 X 2.0 (inches) Bontrager LT3
Bike rear tireNot Available
Bike wheel size26 (inches) Wheels
Brakeset type Shimano EF40 Levers
Tektro V Brakes
Hubs for disc brakes Rear: Formula FM31
Front: Formula FM21
Rims manufacturer 36-hole
Bontrager 550
Spoke nipples typeNot Available
Spoke wheelNot Available

Frame and Body Specs

Frame materialsSteel
Frame typeTIG-welded
Handlebar constructionBontrager Approved Riser
Handlebar extenderOptional
Handlebar stem detailsBontrager Approved
Headset size1 1/8 (inches) Threadless Semi Integrated

Gearing Specifications

Bicycle chainNot Available
Bottom bracket shell widthNot Available
Bottom bracket typeNot Available
Crankset parts and sizes 28/38/48 Teeth
Hawk DX
Gear shift leversShimano EF40
Rear gear set 13 - 34 Teeth
7-speed

Trek 820 Fork System Data

Derailleur (Front)Shimano TX51
Derailleur (Rear)Shimano TX31
Fork materialSingle
Fork type 63 (millimeters) Travel
SR Suntour M-2025

Other Specs of Trek 820

Component group setsShimano Mix
Pedals detailsWellgo Nylon Platform
Rear shock absorberNot Available
Saddle seatBontager SSR
Seat post extension 31.6 (millimeters) Diameter
Bontrager SSR


Specialized Rockhopper A1 FS 1997 comparison online with competitors

Specialized Rockhopper A1 FS

General Infos
Model Rockhopper A1 FS
Manufacturer Specialized
Year of production 1997
Current price Check price Here ==>   
Color choice - white
-Teal
Sizes - 13.5 (inches)
- 15.5 (inches)
- 17 (inches)
- 18 (inches)
- 19 (inches)
- 20.5 (inches)

Wheels And Breaking System

Bike front tire Rear: 26 X 1.90 (inches) Specialized Team Master
Front: 26 X 2.00 (inches) Specialized Team Control
Bike rear tireNot Available
Bike wheel size26 (inches) Wheels
Brakeset type Dia-Compe DP-7 Levers
Dia-Compe Direct Pull Brakes
Hubs for disc brakes Q and R
Rear: Shimano Cassette
Front: SBC Aluminum Quick Release
Rims manufacturer 32-hole
Ritchey Rock SCX
Spoke nipples typeBrass Nipples
Spoke wheel 2.0 (millimeters) Straight Gauge
Stainless Steel

Frame and Body Specs

Frame materialsSBC A1 Premium Aluminum
Frame typeTIG-welded
Handlebar constructionSBC Aluminum
Handlebar extenderOptional
Handlebar stem detailsSBC Aluminum
Headset size1 1/8 (inches) Threadless Tange

Gearing Specifications

Bicycle chain 1/2 X 3/32 (inches)
Shimano
Bottom bracket shell width68 (millimeters) English
Bottom bracket typeSBC Sealed Cartridge
Crankset parts and sizes 22/32/42 Teeth
SBC Son Of Strongarm
Gear shift leversGrip Shift SRT-400i
Rear gear set 11 - 30 Teeth
7-speed

Specialized Rockhopper A1 FS Fork System Data

Derailleur (Front) Bottom-pull and clamp-on 35.0 (millimeters)
Shimano Alivio Top-swing
Derailleur (Rear)Shimano STX
Fork material Triple-clamp Crown
Magnesium
Fork typeRock Shox Indy C

Other Specs of Specialized Rockhopper A1 FS

Component group setsNot Available
Pedals details Resin Body With Clips & Straps
Aluminum Cage
Rear shock absorberNot Available
Saddle seatSpecialized Prolong Evolution Carbotech
Seat post extension 30.9 (millimeters) Diameter
Aluminum Micro-adjust


Useful links and guides ....