Hoffman Bikes MANTRA AL 2009 VS Robinson PATRIOT JR. 1999 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


Robinson Patriot JR. 1999 comparison online with competitors

Robinson Patriot JR.

General Infos
Model Patriot JR.
Manufacturer Robinson
Year of production 1999
Current price Check price Here ==>   
Color choice -Factory Blue and Red
Sizes - Junior

Wheels And Breaking System

Bike front tire20 X 1 1/8 (inches) GT AA Pro
Bike rear tireNot Available
Bike wheel size20 (inches) Wheels
Brakeset type Tektro Linear-pull Rear Levers
Tektro Linear-pull Rear Brakes
Hubs for disc brakesGT Mohawk
Rims manufacturer 28-hole
Weinmann Mini Zac
Spoke nipples typeAlloy Nipples
Spoke wheel 1.8 (millimeters) Straight Gauge
Stainless Steel

Frame and Body Specs

Frame materials6061 T6 Aluminum
Frame typeWelded
Handlebar constructionGT Jr Aluminum
Handlebar extenderNot Available
Handlebar stem detailsGT Mini Piston
Headset size1 (inches) Threadless Aheadset AL

Gearing Specifications

Bicycle chain1/2 X 1/8 (inches)
Bottom bracket shell widthNot Available
Bottom bracket type Sealed
Three Piece
Crankset parts and sizes 42 Teeth
3-piece Aluminum
Gear shift leversNot Available
Rear gear set 16 Teeth
1-speed

Robinson Patriot JR. Fork System Data

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

Other Specs of Robinson Patriot JR.

Component group setsNot Available
Pedals detailsVictor VP-104 Clipless
Rear shock absorberNot Available
Saddle seatUni Mini
Seat post extensionAluminum Micro-adjust


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