Velopedia Bicycle Archive
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Compare published geometry, gearing and specifications for up to three bicycles.
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1 of 2 bicycles
At a glance
Key differences
Supported differences are shown below. Data limitations are labeled separately.
- Data limitation
No geometry is recorded for 2006 Jamis Explorer 4.0 and 2005 Jamis Explorer 4.0.
- Gearing
2005 Jamis Explorer 4.0 has a 16% lower climbing ratio than 2006 Jamis Explorer 4.0.
A lower ratio gives more mechanical advantage; rear-wheel rollout determines distance per crank turn.
Gearing comparison
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
Lowest0.88:1Highest4.36:1Total range499%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 26×1.95; rear size isn’t listed.
Lowest0.73:1Highest3.82:1Total range521%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 26×1.95; rear size isn’t listed.
How it works
Ratio = front teeth ÷ rear teeth. Hub gears also include the hub’s internal ratio. A 400% range means the highest ratio is four times the lowest.
Speeds are estimates from tire size and pedal cadence. Actual speeds vary.
Complete specification tableShows different published values and gaps where a bicycle lacks data. Different wording reflects source language, not necessarily different components. Swipe for more columns.
Specification
2006 Jamis Explorer 4.0
2005 Jamis Explorer 4.0
Overview
Model Year
2006
2005
Brand
Jamis
Jamis
Model
Explorer 4.0
Explorer 4.0
Bicycle Type
Comfort/commuter
Comfort/commuter
Original MSRP
$525.00
$599.95
Colors
Ano Black/Ano Silver
Silver, Silver/Blue
Sizes
13.5", 15.5", 18", 21"
13.5", 15.5", 18", 21", womens 14.5", womens 17.5"
Weight
35.75 lb
32.75 lb
Frameset
Frame Construction
TIG-welded
TIG-welded
Frame Material
6061 PG Aluminum
6061 T6 aluminum
Fork
SR Suntour XCM
Rock Shox Metro GPS, 50mm travel
Fork Material
Aluminum/steel, single crown
Aluminum/magnesium, single crown
Drivetrain
Component Group
Comfort Mix
Comfort Mix
Shifters
Shimano Alivio RapidFire SL
SRAM Dual Drive
Front Derailleur
Shimano FD-C051, top-pull/clamp-on 31.8mm
SRAM 3.0, bottom-pull/clamp-on 31.8mm
Rear Derailleur
Shimano Alivio
SRAM Dual Drive
Crankset
Truvativ Isoflow, 28/38/48 teeth
SRAM Dual Drive, 22/32/42 teeth
Bottom Bracket
Truvativ Power Spline
Sealed, 111mm spindle
BB Shell Width
—
68mm English
Rear Cogs
8-speed, 11 - 32 teeth
8-speed, 11 - 30 teeth
Chain
KMC IG-31, 1/2 x 3/32"
Shimano CN-IG31, 1/2 x 3/32"
Pedals
Aluminum platform
Victor VP aluminum
Brakes
Brakes
Tektro IO Mechanical Disc brakes, Tektro Tenera levers
Tektro linear-pull brakes, Tektro Tenera levers
Cockpit & Contact Points
Headset
Sealed
1 1/8" threadless steel
Handlebar
Aluminum riser
Steel, 1" rise
Handlebar Extensions
—
Not included
Stem
Aluminum adjustable
Aluminum, adjustable
Saddle
Jamis Comfort
Jamis Comfort
Seatpost
Suspension, 27.2mm diameter
Aluminum suspension, 27.2mm diameter
Wheels & Tires
Hubs
Formula disc
Aluminum, Q/R
Rims
Weinmann Zac 19, 36-hole
Weinmann CN-520, 36-hole
Spokes
Stainless steel, 14ga. (2.0mm) straight gauge
Stainless steel, 14ga. (2.0mm) straight gauge
Spoke Nipples
—
Brass nipples
Front Tire
26 x 1.95" Jamis Sport Comfort
26 x 1.95" Kenda Komfort
Wheel Size
26" wheels
26" wheels
Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run.