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.
- Gearing
1998 Kona Explosif has a 7% lower climbing ratio than 1997 Kona Explosif.
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%
Speed unavailable: wheel or tire size is missing or unclear.
Lowest0.79:1Highest3.82:1Total range486%
Estimated speed at 90 RPMLowest gearHighest gear
Rear tire: 26×2.
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 Kona Explosif
1997 Kona Explosif
Overview
Model Year
1998
1997
Brand
Kona
Kona
Model
Explosif
Explosif
Bicycle Type
Mountain bike, front suspension
Mountain bike, front suspension
Original MSRP
$1,649.00
$1,649.00
Colors
Bad Blue
Matte mustard
Sizes
14", 16", 17", 18", 19", 20", 21"
14", 16", 17", 18", 19", 20"
Weight
25.1 lb
23.8 lb
Frameset
Frame Construction
TIG-welded
TIG-welded
Frame Material
Reynolds 853
Columbus Max
Fork
Marzocchi Bomber Z-2 Atom Bomb
Rock Shox Indy SL
Fork Material
Aluminum, triple-clamp crown
Magnesium, triple-clamp crown
Drivetrain
Component Group
Mountain Mix
Shimano Deore XT/LX
Shifters
Shimano Deore XT RapidFire SL
Shimano Deore XT RapidFire SL
Front Derailleur
Shimano Deore XT
Shimano Deore XT top-swing, top-pull/clamp-on 28.6 mm
Rear Derailleur
Shimano Deore XT SGS
Shimano Deore XT SGS
Crankset
Shimano Deore XT, 22/32/42 teeth
Sugino Mighty 900, 22/32/42 teeth
Bottom Bracket
Shimano BB-UN52
Shimano BB-UN52, 110 mm spindle
BB Shell Width
—
68mm English
Rear Cogs
8-speed, 11 - 30 teeth
8-speed, 11 - 28 teeth
Chain
Shimano CN-IG70, 1/2 x 3/32"
Shimano CN-IG71, 1/2 x 3/32"
Pedals
Ritchey Logic
Wellgo WPD-700 (clipless)
Brakes
Brakes
Avid 1D-20 brakes, Shimano Deore XT levers
Shimano Deore XT V-Brake brakes, Avid SD-2.0 levers
Cockpit & Contact Points
Headset
1 1/8" threadless Aheadset SAS
1 1/8" threadless Dia-Compe Aheadset ALC
Handlebar
Kona Bulge
Kona Slim 165
Handlebar Extensions
Not included
Not included
Stem
Tahoma Sonne IV
Tahoma Sonne IV
Saddle
Selle Italia XO
Selle Italia Expedia
Seatpost
Kona O-Beam
Tahoma DP 310, 27.0 mm diameter
Wheels & Tires
Hubs
Front: Javva the Hub, Rear: Shimano Deore XT
Front: Javva the Hub, Rear: Shimano Deore XT
Rims
Mavic X221
Mavic 220S, 32-hole
Spokes
DT stainless steel, 2.0mm straight gauge
DT stainless steel, 2.0mm straight gauge
Spoke Nipples
—
Brass nipples
Front Tire
Kona Enter
26 x 2.00" Kona Scratch
Rear Tire
Kona Break
26 x 2.00" Kona Sniff
Wheel Size
—
26" wheels
Geometry · choose a size for each bicycle
Geometry size
Head-tube angle
71°
71°
Seat-tube angle
74°
74°
Chainstay / rear center
425.4 mm
425.4 mm
Wheelbase
1066.8 mm
1066.8 mm
Fork offset / rake
40.6 mm
40.6 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.