Rocky Mountain RC 30 2012 VS Jamis COMMUTER 4 2011 specs comparison

Rocky Mountain RC 30 2012 comparison online with competitors

Rocky Mountain RC 30

General Infos
Model RC 30
Manufacturer Rocky Mountain
Year of production 2012
Current price Check price Here ==>   
Color choice -blue
Sizes - 40cm (centimeters)
- 45.5cm (centimeters)
- 50cm (centimeters)
- 55.5cm (centimeters)
- 58cm (centimeters)
Sizes - 40cm (centimeters)
- 45.5cm (centimeters)
- 50cm (centimeters)
- 55.5cm (centimeters)
- 58cm (centimeters)

Wheels And Breaking System

Bike front tireKenda Kwest 700x32
Bike rear tireNot Available
Bike wheel sizeNot Available
Brakeset typePromax TX-122
Hubs for disc brakesShimano RM40 Shimano RM30
Rims manufacturerUnavailable Wheelset
Spoke nipples typeNot Available
Spoke wheelNot Available

Frame and Body Specs

Frame materialsRMB 6061 Alloy
Frame typeNot Available
Handlebar constructionRMB Six20
Handlebar extenderNot Available
Handlebar stem detailsRMB XC7
Headset sizeCane Creek Five Series

Gearing Specifications

Bicycle chainShimano HG-53
Bottom bracket shell widthNot Available
Bottom bracket typeShimano UN-26
Crankset parts and sizesShimano M391 48/38/28t
Gear shift levers 9spd Rapidfire
Shimano Acera
Rear gear setNot Available

Rocky Mountain RC 30 Fork System Data

Derailleur (Front)Shimano Acera
Derailleur (Rear)Shimano Alivio 9spd
Fork materialNot Available
Fork typeRMB Cromo Road

Other Specs of Rocky Mountain RC 30

Component group setsNot Available
Pedals detailsRMB City Steel Cage
Rear shock absorberUnavailable Rear Shock
Saddle seatRMB Urban Light
Seat post extensionRMB L2B


Jamis Commuter 4 2011 comparison online with competitors

Jamis Commuter 4

General Infos
Model Commuter 4
Manufacturer Jamis
Year of production 2011
Current price Check price Here ==>   
Color choice - pearl white
-Winter blue
Sizes - M: 15 (inches)
- 17 (inches)
- 19 (inches)
- 21 (inches)
- 23 F: 14 (inches)
- 18 (inches)

Wheels And Breaking System

Bike front tire700 X 32c Vittoria Adventure Touring
Bike rear tireNot Available
Bike wheel size700c Wheels
Brakeset type Tektro Tenera Levers
Tektro Linear Pull Brakes
Hubs for disc brakes Rear: Shimano Nexus Inter-8
Front: Shimano DH2N35 Dynamo Hub
Rims manufacturer 36-hole
Alex ID-19
Spoke nipples typeNot Available
Spoke wheel 14ga.
Stainless Steel Stainless

Frame and Body Specs

Frame materials6061 Triple Gauge Aluminum
Frame typeAluminum
Handlebar constructionJamis ARC
Handlebar extenderOptional
Handlebar stem detailsNVO Components
Headset size1 1/8 (inches) VP Slimstack

Gearing Specifications

Bicycle chainKMC Z410
Bottom bracket shell width68 (millimeters)
Bottom bracket type 122.5 (millimeters) Spindle
Sealed Cartridge
Crankset parts and sizes 42T Teeth
Forged Alloy
Gear shift leversShimano RevoShift SL-8S20
Rear gear set 20 Teeth
1-speed

Jamis Commuter 4 Fork System Data

Derailleur (Front)Not Available
Derailleur (Rear)Not Available
Fork materialAluminum
Fork typeJamis City and Cross

Other Specs of Jamis Commuter 4

Component group setsCo (millimeters)uter Mix
Pedals detailsCity Style Full Alloy
Rear shock absorberNot Available
Saddle seatJamis Metro Sport
Seat post extension 27.2 (millimeters) Diameter
Jamis Alloy Micro-adjust


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