- Frame
- 7005 aluminum, double-butted
- Groupset
- Mountain Mix
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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.
- Gearing
1999 Jamis Dakar Expert has a 6% lower climbing ratio than 1998 Jamis Dakar 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.
Lowest0.73:1Highest3.82:1Total range521%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 26×2.2; rear size isn’t listed.
Lowest0.69:1Highest4.00:1Total range582%
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
1998 Jamis Dakar Expert
1999 Jamis Dakar Expert
Overview
Model Year
1998
1999
Brand
Jamis
Jamis
Model
Dakar Expert
Dakar Expert
Bicycle Type
Mountain bike, front & rear suspension
Mountain bike, front & rear suspension
Original MSRP
$1,339.95
$1,399.95
Colors
Cream front/red rear
Powdercoat Red/Powdercoat Yellow
Sizes
13", 15", 17", 19", 21"
13", 15", 17", 19", 21"
Weight
28.75 lb
28 lb
Frameset
Frame Construction
TIG-welded
TIG-welded
Frame Material
7005 aluminum, double-butted
7005 aluminum w/replaceable derailleur hanger
Fork
Answer Manitou X-Vert
Answer Manitou X-Vert E, 4.0" travel
Fork Material
Aluminum/magnesium, triple-clamp crown
Aluminum/magnesium, triple-clamp crown
Rear Shock
Fox Vanilla, 3.5" travel
Fox Air Vanilla, 3.5" travel
Drivetrain
Component Group
Mountain Mix
Mountain Mix
Shifters
Shimano STX-RC RapidFire SL
Shimano Deore LX RapidFire SL
Front Derailleur
Shimano Deore LX top-swing, top-pull/clamp-on 31.8mm
Shimano Deore LX, top-pull/clamp-on 31.8mm
Rear Derailleur
Shimano Deore LX SGS
Shimano Deore XT SGS
Crankset
Shimano STX-RC, 22/32/42 teeth
Shimano Deore LX, 22/32/44 teeth
Bottom Bracket
Shimano BB-UN52, 110mm spindle
Shimano BB-UN52, 110mm spindle
BB Shell Width
68mm English
68mm English
Rear Cogs
8-speed, 11 - 30 teeth
9-speed, 11 - 32 teeth
Chain
Shimano CN-IG70, 1/2 x 3/32"
Shimano CN-HG72, 1/2 x 3/32"
Pedals
Wellgo WPD-700 clipless
Time Alium
Brakes
Brakes
Shimano STX-RC V-Brake brakes, Shimano STX-RC levers
Avid Arch Rival 40 brakes, Avid SD-1.9 L levers
Cockpit & Contact Points
Headset
1 1/8" Aheadset Kontak AL-2
1 1/8" threadless Aheadset
Handlebar
Titec Enduro
Titec Enduro Hell Bent
Handlebar Extensions
Titec L-Bend
Not included
Stem
Titec aluminum
Titec Big AL
Saddle
SDG Ventura Comp, chromoly rails
SDG Comp Belair
Seatpost
Titec PG, 27.2mm diameter
Titec PG, 27.2mm diameter
Wheels & Tires
Hubs
Front: Shimano STX-RC suspension, Rear: Shimano STX-RC
Shimano Deore LX suspension
Rims
Sun Rims CR18, 32-hole
Sun Rims Rhyno Lite, 28-hole/32-hole
Spokes
Wheelsmith stainless steel, 2.0mm double-butted
Wheelsmith stainless steel, 1.8mm double-butted
Spoke Nipples
Alloy nipples
Alloy nipples
Front Tire
26 x 2.20" WTB Primal Raptor
26 x 1.95" Tioga Factory XC kevlar
Wheel Size
26" wheels
26" wheels
Geometry · choose a size for each bicycle
Geometry size
Head-tube angle
71°
71°
Seat-tube angle
74°
74°
Chainstay / rear center
425 mm
425 mm
Wheelbase
1067 mm
1067 mm
Fork offset / rake
40.6 mm
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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.