Hoffman Bikes MANTRA AL 2009 VS Diamondback VIPER 1998 specs comparison

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 tire	Not Available
Bike wheel size	20 (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 type	Not Available
Spoke wheel	Not Available

Frame and Body Specs

Frame materials	4130 chromoly c
Frame type	TIG-welded
Handlebar construction	HB 2-piece Full Chromoly
Handlebar extender	Optional
Handlebar stem details	Not Available
Headset size	1 1/8 (inches) FSA Impact

Gearing Specifications

Bicycle chain	Not Available
Bottom bracket shell width	Not Available
Bottom bracket type	Mid Sealed BB
Crankset parts and sizes	27 Teeth 3 Piece Tubular Chromoly
Gear shift levers	Not 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 type	Hoffman

Other Specs of Hoffman Bikes Mantra AL

Component group sets	BMX
Pedals details	Alloy Platform
Rear shock absorber	Not Available
Saddle seat	HB Kevlar
Seat post extension	25.4 (millimeters) Diameter Alloy Micro Adjust

Diamondback Viper

General Infos

Model	Viper
Manufacturer	Diamondback
Year of production	1998
Current price	Check price Here ==>
Color choice	- chrome-plated - flat blue with chrome-plated fork - flat grey with chrome-plated fork - orange with chrome-plated fork -Blue with chrome-plated fork
Sizes	- Pro XL

Wheels And Breaking System

Bike front tire	Rear: 20 X 1.75 (inches) Comp III Style Front: 20 X 2.125 (inches) Comp III Style
Bike rear tire	Not Available
Bike wheel size	20 (inches) Wheels
Brakeset type	Lee Chi ProMax Levers Lee Chi ProMax Linear-pull Brakes
Hubs for disc brakes	Nutted King Kong Aluminum
Rims manufacturer	36-hole Kin Lin RT-6n
Spoke nipples type	Brass Nipples
Spoke wheel	2.0 (millimeters) Straight Gauge Shuhn Lih Steel

Frame and Body Specs

Frame materials	Chromoly Main Triangle and hi-tensile Steel Rear Stays
Frame type	TIG-welded
Handlebar construction	Hsin Lung Steel
Handlebar extender	Not Available
Handlebar stem details	Hi-tensile Steel
Headset size	1 (inches) YST Steel

Gearing Specifications

Bicycle chain	1/2 X 1/8 (inches) Taya 410
Bottom bracket shell width	American 24tpi
Bottom bracket type	YST BB 621
Crankset parts and sizes	44 Teeth 1-piece 6 1/2 (inches)
Gear shift levers	Not Available
Rear gear set	16 Teeth 1-speed

Diamondback Viper Fork System Data

Derailleur (Front)	Not Available
Derailleur (Rear)	Not Available
Fork material	Unicrown Crown Hi-tensile Steel
Fork type	Diamondback

Other Specs of Diamondback Viper

Component group sets	Not Available
Pedals details	Resin Platform
Rear shock absorber	Not Available
Saddle seat	Diamondback Padded
Seat post extension	25.4 (millimeters) Diameter Steel Pillar