Jamis EXPLORER 1999 VS Kona UNIT 2004 specs comparison

Jamis Explorer

General Infos

Model	Explorer
Manufacturer	Jamis
Year of production	1999
Current price	Check price Here ==>
Color choice	- Gloss Black - Magenta -Azure Blue
Sizes	- 14.5 (inches) - 16 (inches) - 17.5 (inches) - 19.5 (inches) - 21.5 (inches) - womens 16 (inches) - womens 19 (inches)
Sizes	- 14.5 (inches) - 16 (inches) - 17.5 (inches) - 19.5 (inches) - 21.5 (inches) - womens 16 (inches) - womens 19 (inches)

Wheels And Breaking System

Bike front tire	26 X 1.95 (inches) Cheng Shin C-1212
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Tektro RBP-378A Levers Tektro 823A Linear-pull Brakes
Hubs for disc brakes	Rear: Jou Yu JY-734 Front: Jou Yu JY-731
Rims manufacturer	32-hole Sun Rims Z-19
Spoke nipples type	Brass Nipples
Spoke wheel	1.8 (millimeters) Straight Gauge Shun Jiu Stainless Steel

Frame and Body Specs

Frame materials	Hi-tensile Steel
Frame type	Pulse-welded
Handlebar construction	Rise Steel
Handlebar extender	Optional
Handlebar stem details	Steel
Headset size	1 1/8 (inches) Chin Haur CH-90

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) KMC Z-51
Bottom bracket shell width	68 (millimeters) English
Bottom bracket type	110 (millimeters) Spindle Chin Haur CH-48
Crankset parts and sizes	28/38/48 Teeth SR CW-XR 11
Gear shift levers	Grip Shift MRX-200
Rear gear set	14 - 34 Teeth 7-speed

Jamis Explorer Fork System Data

Derailleur (Front)	Top-pull and clamp-on 28.6 (millimeters) Shimano Tourney TY-32
Derailleur (Rear)	Shimano Tourney TY-30
Fork material	Unicrown Crown Hi-tensile Steel
Fork type	Not Available

Other Specs of Jamis Explorer

Component group sets	Mountain Mix
Pedals details	Wellgo LU-943
Rear shock absorber	Not Available
Saddle seat	Velo VL-313
Seat post extension	26.8 (millimeters) Diameter Polygon PM-790

Kona Unit

General Infos

Model	Unit
Manufacturer	Kona
Year of production	2004
Current price	Check price Here ==>
Color choice	-Gray and Black
Sizes	- 16 (inches) - 18 (inches) - 19 (inches) - 20 (inches)

Wheels And Breaking System

Bike front tire	26 X 1.90 (inches) Tioga Red Phoenix
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Avid Single Digit 5 Levers Avid Single Digit 5 Brakes
Hubs for disc brakes	Rear: Kona Single Speed Disc Front: Shimano HB-M475 Disc
Rims manufacturer	32-hole Sun Rims Mach 4
Spoke nipples type	Brass Nipples
Spoke wheel	15ga. Front and 14ga. Rear Straight Gauge Stainless Steel

Frame and Body Specs

Frame materials	True Temper OX Platinum
Frame type	TIG-welded
Handlebar construction	Koski Riser
Handlebar extender	Optional
Handlebar stem details	Koski Strong Hold XC
Headset size	1 1/8 (inches) Threadless Aheadset STS

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) KMC Z610HX
Bottom bracket shell width	Not Available
Bottom bracket type	Race Face ISIS SRX
Crankset parts and sizes	34 Teeth Race Face Ride
Gear shift levers	Not Available
Rear gear set	17 Teeth 1-speed

Kona Unit Fork System Data

Derailleur (Front)	Not Available
Derailleur (Rear)	Not Available
Fork material	Unicrown Crown Chromoly
Fork type	Kona Project 2 Disc

Other Specs of Kona Unit

Component group sets	Mountain Mix
Pedals details	Shimano PD-M505 SPD
Rear shock absorber	Not Available
Saddle seat	SDG-Kona Satellite
Seat post extension	Koski Stronghold