GT BUMP 2003 VS Hoffman SD-4 1999 specs comparison

GT Bump 2003 comparison online with competitors

GT Bump

General Infos
Model Bump
Manufacturer GT
Year of production 2003
Current price Check price Here ==>   
Color choice - Yellow
-Blue
Sizes - One
Sizes - One

Wheels And Breaking System

Bike front tire20 X 2.10 (inches) GT LP-4
Bike rear tireNot Available
Bike wheel size20 (inches) Wheels
Brakeset type Tektro 274A Rear Levers
Tektro 907A U-brake Rear Brakes
Hubs for disc brakes 14 (millimeters) Axle
Aluminum
Rims manufacturer 36-hole
Alex G22
Spoke nipples typeBrass Nipples
Spoke wheel 14ga. Straight Gauge
Stainless Steel

Frame and Body Specs

Frame materialsChromoly Main Triangle and hi-tensile Steel Rear Stays
Frame typeTIG-welded
Handlebar constructionGT BMX
Handlebar extenderNot Available
Handlebar stem detailsGT Piston
Headset size1 1/8 (inches) Threadless Victor VP-A74F

Gearing Specifications

Bicycle chain 1/2 X 3/16 (inches)
KMC 410
Bottom bracket shell widthAmerican
Bottom bracket typeNot Available
Crankset parts and sizes 39 Teeth
GT 3-piece Chromoly
Gear shift leversNot Available
Rear gear set 14 Teeth
1-speed

GT Bump Fork System Data

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

Other Specs of GT Bump

Component group setsNot Available
Pedals detailsGT Johnson Design
Rear shock absorberNot Available
Saddle seat 9 (millimeters) Rails
GT Jr Jump
Seat post extensionSteel Micro-adjust


Hoffman SD-4 1999 comparison online with competitors

Hoffman SD-4

General Infos
Model SD-4
Manufacturer Hoffman
Year of production 1999
Current price Check price Here ==>   
Color choice - Red
-Chrome-Plated
Sizes - Not available

Wheels And Breaking System

Bike front tire20 X 1.95 (inches) Hoffman Bikes Skidmark
Bike rear tireNot Available
Bike wheel size20 (inches) Wheels
Brakeset type Dia-Tech MX-1 Levers
Dia-Compe 990 Brakes
Hubs for disc brakesAlloy
Rims manufacturer 48-hole
HB Highroller CP
Spoke nipples typeBrass Nipples
Spoke wheel 2.0 (millimeters) Straight Gauge
Steel

Frame and Body Specs

Frame materials4130 chromoly c
Frame typeTIG-welded
Handlebar constructionHoffman Bikes Jumping Bars
Handlebar extenderNot Available
Handlebar stem detailsHoffman Bikes Super Stem
Headset size1 1/8 (inches) Threadless Steel With SST Oryg Detangler

Gearing Specifications

Bicycle chain 1/2 X 3/32 (inches)
KMC 410
Bottom bracket shell widthNot Available
Bottom bracket typeNot Available
Crankset parts and sizes 44 Teeth
1-piece Chromoly
Gear shift leversNot Available
Rear gear setNot Available

Hoffman SD-4 Fork System Data

Derailleur (Front)Not Available
Derailleur (Rear)Not Available
Fork material Unicrown Crown
4130 Chromoly
Fork typeHoffman Bikes SD-4

Other Specs of Hoffman SD-4

Component group setsNot Available
Pedals detailsWellgo LU-313
Rear shock absorberNot Available
Saddle seatHB VL-311
Seat post extension 25.4 (millimeters) Diameter
HB 4130


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