Dirtmaster BIG BERTHA 1999 VS Nirve HYPNOTIC 2001 specs comparison

Dirtmaster Big Bertha

General Infos

Model	Big Bertha
Manufacturer	Dirtmaster
Year of production	1999
Current price	Check price Here ==>
Color choice	- Chrome-Plated - Red - Yellow -Black
Sizes	- Pro XL
Sizes	- Pro XL

Wheels And Breaking System

Bike front tire	20 X 2.25 (inches) Kenda K-841
Bike rear tire	Not Available
Bike wheel size	20 (inches) Wheels
Brakeset type	Dia-Compe Tech 99 Levers Dia-Compe 990 Brakes
Hubs for disc brakes	Joy Tech Jy A085SBT
Rims manufacturer	48-hole Alex Supra
Spoke nipples type	Brass Nipples
Spoke wheel	2.0 (millimeters) Straight Gauge Da-Sen Stainless Steel

Frame and Body Specs

Frame materials	4130 chromoly c
Frame type	TIG-welded
Handlebar construction	Dirtmaster Hoochie
Handlebar extender	Not Available
Handlebar stem details	Odyssey Bang
Headset size	1 1/8 (inches) Threadless Aheadset SE-1 F and S With Odyssey Gyro Detangler

Gearing Specifications

Bicycle chain	1/2 X 1/8 (inches) KMC 410H
Bottom bracket shell width	American 24tpi
Bottom bracket type	YST BB 621
Crankset parts and sizes	44 Teeth 1-piece Chromoly 180 (millimeters)
Gear shift levers	Not Available
Rear gear set	16 Teeth 1-speed

Dirtmaster Big Bertha Fork System Data

Derailleur (Front)	Not Available
Derailleur (Rear)	Not Available
Fork material	Unicrown Crown 4130 Chromoly
Fork type	Dirtmaster Street Fork

Other Specs of Dirtmaster Big Bertha

Component group sets	Not Available
Pedals details	Wellgo LU-313U
Rear shock absorber	Not Available
Saddle seat	Team Products Embroidered
Seat post extension	25.4 (millimeters) Diameter Primo Rod

Nirve Hypnotic

General Infos

Model	Hypnotic
Manufacturer	Nirve
Year of production	2001
Current price	Check price Here ==>
Color choice	- Chrome-Plated - Orange - Silver -Black
Sizes	- Pro

Wheels And Breaking System

Bike front tire	20 X 1.95 (inches) Voxom Rubbers Sensitive
Bike rear tire	Not Available
Bike wheel size	20 (inches) Wheels
Brakeset type	Aluminum U-brake Levers Tektro 906A U-brake Brakes
Hubs for disc brakes	Voxom Aluminum Trail
Rims manufacturer	48-hole Alex X-303
Spoke nipples type	Brass Nipples
Spoke wheel	14g Voxom UCP

Frame and Body Specs

Frame materials	Hi-tensile Steel
Frame type	TIG-welded
Handlebar construction	Voxom 2-piece
Handlebar extender	Not Available
Handlebar stem details	Voxom Aluminum Trail
Headset size	Dia-Compe SB

Gearing Specifications

Bicycle chain	1/2 X 1/8 (inches) KMC
Bottom bracket shell width	American
Bottom bracket type	Loose Ball
Crankset parts and sizes	43 Teeth Voxom 1-piece
Gear shift levers	Not Available
Rear gear set	16 Teeth 1-speed

Nirve Hypnotic Fork System Data

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

Other Specs of Nirve Hypnotic

Component group sets	Not Available
Pedals details	Voxom Nylon Platform
Rear shock absorber	Not Available
Saddle seat	Voxom Trail
Seat post extension	26.0 (millimeters) Diameter Voxom Steel