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 2005 Jamis Dakar XC Expert.
- Gearing
2004 Jamis Dakar XC Expert has a 6% lower climbing ratio than 2005 Jamis Dakar XC Expert.
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.
Lowest0.69:1Highest4.00:1Total range582%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 26×2.1; rear size isn’t listed.
Lowest0.65:1Highest3.67:1Total range567%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 26×2; 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
2005 Jamis Dakar XC Expert
2004 Jamis Dakar XC Expert
Overview
Model Year
2005
2004
Brand
Jamis
Jamis
Model
Dakar XC Expert
Dakar XC Expert
Bicycle Type
Mountain bike, front & rear suspension
Mountain bike, front & rear suspension
Original MSRP
$2,099.95
$1,999.95
Colors
Red
Grey/Silver
Sizes
13", 15", 17", 19", 21"
13", 15", 17", 19", 21"
Weight
27.25 lb
26.5 lb
Frameset
Frame Construction
TIG-welded
TIG-welded
Frame Material
Aluminum/carbon fiber seat stays
7005 aluminum
Fork
Fox FRL, 100mm travel
Fox F100 RL, 100mm travel
Fork Material
Aluminum/magnesium, single crown
Aluminum/magnesium, single crown
Rear Shock
Fox Float RL AVA, 90mm travel
Fox Float RL, 90mm travel
Drivetrain
Component Group
Mountain Mix
Mountain Mix
Shifters
Shimano Deore LX
Shimano Deore XT RapidFire STI
Front Derailleur
Shimano Deore XT, top-pull/clamp-on 31.8mm
Shimano Deore XT, top-pull/clamp-on 31.8mm
Rear Derailleur
Shimano Deore XT SGS
Shimano Deore XT SGS
Crankset
TruVativ Stylo Team, 22/32/44 teeth
TruVativ Stylo, 22/32/44 teeth
Bottom Bracket
TruVativ GIGA pipe
Shimano XTR
BB Shell Width
68mm English
68mm English
Rear Cogs
9-speed, 11 - 32 teeth
9-speed, 12 - 34 teeth
Chain
Shimano CN-HG93, 1/2 x 3/32"
Shimano CN-7701, 1/2 x 3/32"
Pedals
Crank Brothers Candy C
Time ATAC Classic
Brakes
Brakes
Shimano Deore LX hydraulic disc brakes, Shimano Deore LX levers
Shimano Deore XT M765 hydraulic disc brakes, Shimano Deore XT M756 hydraulic levers
Cockpit & Contact Points
Headset
1 1/8" Zero Stack Threadless WTB Team
1 1/8" Zero Stack Threadless Cane Creek ZS-2
Handlebar
Truvativ XR riser
TruVativ Team
Handlebar Extensions
Not included
Not included
Stem
TruVativ XR
TruVativ Team
Saddle
Fi'zi:k Gobi
Fi'zi:k Plateau, chrome-moly rails
Seatpost
TruVativ XR Dual Clamp, 27.2mm diameter
TruVativ Team, 27.2mm diameter
Wheels & Tires
Hubs
Shimano Deore XT disc
Front: Shimano Deore XT disc, Rear: Shimano XTR disc
Rims
Mavic XM 317, 32-hole
Mavic X223 Disc, 32-hole
Spokes
WTB stainless steel, 14ga. (2.0mm) straight gauge
WTB stainless steel, 14ga. (2.0mm) straight gauge
Spoke Nipples
Brass nipples
Brass nipples
Front Tire
26 x 2.10" Hutchinson Bulldog AirLight
26 x 2.00" Hutchinson Python Gold Elite
Wheel Size
26" wheels
26" wheels
Geometry · choose a size for each bicycle
Geometry size
—
Head-tube angle
—
71°
Seat-tube angle
—
74°
Chainstay / rear center
—
425 mm
Wheelbase
—
1090 mm
Fork offset / rake
—
38.1 mm
Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run. Legacy reference geometry is model-level historical data whose corresponding frame size is not identified; compare those dimensions as reference values rather than size-normalized fit data.