Dekerf GENERATION JUDY SL/DISC 1999 VS Trek 820 2007 specs comparison

Dekerf Generation Judy SL/Disc

General Infos

Model	Generation Judy SL/Disc
Manufacturer	Dekerf
Year of production	1999
Current price	Check price Here ==>
Color choice	- Copper - Guinness - Kermit Green - Slate - Tangerine - Viper Blue -Burgundy
Sizes	- 16 (inches) - 17.5 (inches) - 18.5 (inches) - 19.5 (inches) - 21 (inches)
Sizes	- 16 (inches) - 17.5 (inches) - 18.5 (inches) - 19.5 (inches) - 21 (inches)

Wheels And Breaking System

Bike front tire	Rear: 26 X 1.95 (inches) WTB VelociRaptor 44/50 Kevlar Front: 26 X 1.95 (inches) WTB VelociRaptor 47/52 Kevlar
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Shimano Deore XT Levers Rock Shox Disc Brakes
Hubs for disc brakes	White Industries
Rims manufacturer	32-hole Mavic X223
Spoke nipples type	Brass Nipples
Spoke wheel	2.0 (millimeters) Double-butted DT Stainless Steel

Frame and Body Specs

Frame materials	Reynolds 631
Frame type	TIG-welded
Handlebar construction	Race Face Air Alloy Riser
Handlebar extender	Optional
Handlebar stem details	Ritchey CompLite
Headset size	1 1/8 (inches) Threadless Ritchey Fuzzy Logic

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) Shimano CN-HG72
Bottom bracket shell width	68 (millimeters) English
Bottom bracket type	110 (millimeters) Spindle Shimano Deore LX
Crankset parts and sizes	22/32/44 Teeth Shimano Deore LX
Gear shift levers	Shimano Deore XT RapidFire SL
Rear gear set	11 - 32 Teeth 9-speed

Dekerf Generation Judy SL/Disc Fork System Data

Derailleur (Front)	Top-pull and clamp-on 28.6 (millimeters) Shimano Deore XT
Derailleur (Rear)	Shimano Deore XT SGS
Fork material	Triple-clamp Crown Aluminum and magnesium
Fork type	3.15 (inches) Travel Rock Shox Judy SL

Other Specs of Dekerf Generation Judy SL/Disc

Component group sets	Shimano Deore LX and XT
Pedals details	Shimano PD-M535 SPD
Rear shock absorber	Not Available
Saddle seat	Hollow Chromoly Rails With Kevlar Sides WTB SSTK
Seat post extension	27.2 (millimeters) Diameter Ritchey Expert

Trek 820

General Infos

Model	820
Manufacturer	Trek
Year of production	2007
Current price	Check price Here ==>
Color choice	- Matte Navy and Matte Bluegray -Hot Orange and Metallic Dark Silver
Sizes	- 13 (inches) - 16 (inches) - 18 (inches) - 19.5 (inches) - 21 (inches)

Wheels And Breaking System

Bike front tire	26 X 2.00 (inches) Bontrager Connection Trail
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Shimano EF-50 Levers Tektro V Brakes
Hubs for disc brakes	Alloy
Rims manufacturer	Matrix 550
Spoke nipples type	Not Available
Spoke wheel	Not Available

Frame and Body Specs

Frame materials	Hi-tensile Steel and chromoly
Frame type	TIG-welded
Handlebar construction	Bontrager Approved
Handlebar extender	Optional
Handlebar stem details	Bontrager Approved
Headset size	Aheadset Slimstak

Gearing Specifications

Bicycle chain	Not Available
Bottom bracket shell width	Not Available
Bottom bracket type	Not Available
Crankset parts and sizes	28/38/48 Teeth SR XCC-T208
Gear shift levers	Shimano EF-50
Rear gear set	13 - 34 Teeth 7-speed

Trek 820 Fork System Data

Derailleur (Front)	Shimano C-051
Derailleur (Rear)	Shimano Acera
Fork material	Single Crown Aluminum and steel
Fork type	63 (millimeters) Travel RST 191 C7

Other Specs of Trek 820

Component group sets	Shimano Mix
Pedals details	Nylon Platform
Rear shock absorber	Not Available
Saddle seat	Bontrager Sport
Seat post extension	Bontrager Approved