Schwinn Sierra 21 2011 Technical specs and features

Brand Schwinn
Model Sierra 21
First production 2011
Bike category Commuter
Bike sub-category Comfort Commuter
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Parts And Accessories Schwinn Sierra 21 Parts   
Available Sizes - S


Wheels And Breaking System

Bike front tire26 X 1.95 (inches) Schwinn
Bike rear tireNot Available
Bike wheel size26 (inches) Wheels
Brakeset type Promax Alloy Levers
ProMax Linear-pull Brakes
Hubs for disc brakesKT Alloy
Rims manufacturer 32-hole
Alex IC-1000
Spoke nipples typeNot Available
Spoke wheel 14ga.
Stainless

Frame and Body Specifications

Frame materialsSchwinn N'Litened Aluminum
Frame typeAluminum
Handlebar construction 25-degree Bend
80 (millimeters) Rise
Handlebar extenderOptional
Handlebar stem detailsAlloy 30 Deg Rise Comfort
Headset size1 1/8 (inches) Threaded

Gearing Specs

Bicycle chainKMC Z-51
Bottom bracket shell widthNot Available
Bottom bracket typeSealed Cartridge
Crankset parts and sizes 42/34/24t Teeth
Schwinn S Logo Forged Alloy
Gear shift leversShimano Revo Twist
Rear gear setNot Available

Schwinn Sierra 21 Fork System Data

Derailleur (Front)Shimano TX50
Derailleur (Rear)Shimano Altus
Fork materialNot Available
Fork typeRigid Frame

Other Specs of Schwinn Sierra 21

Component group setsCo (millimeters)uter Mix
Available colors - Red
- black
Weight Not Available
Pedals detailsNylon Comfort
Rear shock absorberNot Available
Saddle seatComfort Tuned
Seat post extension 26.8 (millimeters) Diameter
Alloy Suspension


Schwinn Sierra 21 bike review

Schwinn produced the Sierra 21 bike in 2011 and can be classified as a Commuter bicycle, this exact model costs in american market arround $379.00.
Schwinn Commuter Sierra 21 can be found in a few colors, among these colors Red and black .
This bike is equiped with 26 x 1.95" Schwinn tires and Stainless spoke wheel while the rims are manufactured by Alex IC-1000, 32-hole. Schwinn equiped this exact model with ProMax linear-pull brakes, Promax alloy levers braking system and KT alloy hubs.
To guarantee the comfiest ride Schwinn used Schwinn N'Litened Aluminum material for the frame. 80mm rise, 25-degree bend high strength material is used on the handlebar of this Sierra 21 to ensure the perfect handling while the stems are made of Alloy 30 deg rise comfort.
For the smoothest biking experience Schwinn S Logo forged alloy, 42/34/24t teeth is used on this bicycle linked to KMC Z-51 chain that is easily replaceable as stated by Schwinn, the whole system is connected to a high reliability Shimano Revo twist gear shift levers.