Hoffman Bikes MANTRA AL 2009 VS GT Bicycles BUMP 2012 specs comparison

Hoffman Bikes Mantra AL 2009 comparison online with competitors

Hoffman Bikes Mantra AL

General Infos
Model Mantra AL
Manufacturer Hoffman Bikes
Year of production 2009
Current price Check price Here ==>   
Color choice -Gray
Sizes - 20.85 TT (inches)
Sizes - 20.85 TT (inches)

Wheels And Breaking System

Bike front tire Rear: 20 X 1.95 (inches) HB Skidmark
Front: 20 X 2.125 (inches) Kenda K-Rad
Bike rear tireNot Available
Bike wheel size20 (inches) Wheels
Brakeset type Unavailable Rear Levers
U-Brake Rear Brakes
Hubs for disc brakes Rear: Sealed 14 (millimeters) Cassette
Front: Alloy 3/8 (inches)
Rims manufacturer 36-hole
Rear: Alex Supra E Double Wall
Front: Jalco Double Wall
Spoke nipples typeNot Available
Spoke wheelNot Available

Frame and Body Specs

Frame materials4130 chromoly c
Frame typeTIG-welded
Handlebar constructionHB 2-piece Full Chromoly
Handlebar extenderOptional
Handlebar stem detailsNot Available
Headset size1 1/8 (inches) FSA Impact

Gearing Specifications

Bicycle chainNot Available
Bottom bracket shell widthNot Available
Bottom bracket typeMid Sealed BB
Crankset parts and sizes 27 Teeth
3 Piece Tubular Chromoly
Gear shift leversNot Available
Rear gear set 10 Teeth
1-speed

Hoffman Bikes Mantra AL Fork System Data

Derailleur (Front)Not Available
Derailleur (Rear)Not Available
Fork material Unicrown Crown
Chromoly
Fork typeHoffman

Other Specs of Hoffman Bikes Mantra AL

Component group setsBMX
Pedals detailsAlloy Platform
Rear shock absorberNot Available
Saddle seatHB Kevlar
Seat post extension 25.4 (millimeters) Diameter
Alloy Micro Adjust


GT Bicycles Bump 2012 comparison online with competitors

GT Bicycles Bump

General Infos
Model Bump
Manufacturer GT Bicycles
Year of production 2012
Current price Check price Here ==>   
Color choice - Satin White
-Satin Black
Sizes - Standard size for all

Wheels And Breaking System

Bike front tireGT Dirt 2.125
Bike rear tireNot Available
Bike wheel sizeNot Available
Brakeset typeTektro FX340R
Hubs for disc brakesGT Alloy Sealed 32h GT Alloy Sealed Cassette 36h
Rims manufacturerUnavailable Wheelset
Spoke nipples typeNot Available
Spoke wheelNot Available

Frame and Body Specs

Frame materialsStraight Guage Cro-Mo
Frame typeNot Available
Handlebar constructionGT Freestyle
Handlebar extenderNot Available
Handlebar stem detailsGT Freestyle
Headset sizeFDP Integrated

Gearing Specifications

Bicycle chainKMC Z510
Bottom bracket shell widthNot Available
Bottom bracket typeSealed Mid
Crankset parts and sizesGT 3-pc Cro-Mo 175 (millimeters) 25t
Gear shift leversUnavailable Shifters
Rear gear setNot Available

GT Bicycles Bump Fork System Data

Derailleur (Front)Unavailable Front Derailleur
Derailleur (Rear)Unavailable Rear Derailleur
Fork materialNot Available
Fork typeGT Cro-Mo

Other Specs of GT Bicycles Bump

Component group setsNot Available
Pedals detailsGT Pro Plastic
Rear shock absorberUnavailable Rear Shock
Saddle seatGT Dirt Unified
Seat post extensionGT Unified


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