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
1999 Rocky Mountain Hammer Race has a 6% lower climbing ratio than 1998 Rocky Mountain Hammer Race.
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
Rear tire: 26×1.95.
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 Rocky Mountain Hammer Race
1999 Rocky Mountain Hammer Race
Overview
Model Year
1998
1999
Brand
Rocky Mountain
Rocky Mountain
Model
Hammer Race
Hammer Race
Bicycle Type
Mountain bike, front suspension
Mountain bike, front suspension
Original MSRP
$1,099.00
$1,125.00
Colors
Black
Speed Blue/Shredded Silver
Sizes
14.5", 16", 17.5", 18.5", 19.5", 20"
14.5", 16", 17.5", 18.5", 19.5", 21"
Weight
26.2 lb
26.5 lb
Frameset
Frame Construction
Welded
TIG-welded
Frame Material
Chromoly, double-butted
Reynolds 525
Fork
Rock Shox Judy T2
Marzocchi Bomber Z-4, 2.75" travel
Fork Material
Aluminum/magnesium, triple-clamp crown
Aluminum, triple-clamp crown
Drivetrain
Component Group
Mountain Mix
Mountain Mix
Shifters
Shimano Deore LX RapidFire SL
SRAM ESP 9.0
Front Derailleur
Shimano Deore XT, top-pull/clamp-on 31.8mm
Shimano Deore LX top-swing, clamp-on 28.6mm
Rear Derailleur
Shimano Deore XT SGS
SRAM ESP 9.0
Crankset
Race Face Turbine LP, 22/32/42 teeth
Race Face Turbine LP, 22/32/44 teeth
Bottom Bracket
Shimano BB-UN52
Shimano cartridge, 110mm spindle
BB Shell Width
—
73mm English
Rear Cogs
8-speed, 11 - 30 teeth
9-speed, 11 - 32 teeth
Chain
Taya TB-600, 1/2 x 3/32"
Shimano CN-HG72, 1/2 x 3/32"
Pedals
Ritchey Logic
RMB Competition XC clipless
Brakes
Brakes
Avid 1D-20 brakes, Avid SD-2.0 L levers
Avid SD-20 brakes, Avid SD-1.9 TL levers
Cockpit & Contact Points
Headset
1 1/8" threadless Ritchey Logic Expert
1 1/8" threadless Ritchey Logic Expert
Handlebar
RMB aluminum
Aluminum, butted
Handlebar Extensions
Not included
Not included
Stem
Ritchey CompLite
Forged alloy
Saddle
Selle Italia Nitrox PD
Selle Italia XO
Seatpost
Ritchey Expert
Aluminum micro-adjust, 26.8mm diameter
Wheels & Tires
Hubs
Shimano Deore LX
Shimano Deore LX
Rims
Sun Rims CR18
Sun Rims CR18, 32-hole
Spokes
DT stainless steel, 2.0mm straight gauge
DT Champion stainless steel, 2.0mm straight gauge
Spoke Nipples
—
Brass nipples
Front Tire
26 x 1.95" WTB VelociRaptor 44/50
26 x 1.95" Michelin Wild Gripper kevlar
Rear Tire
26 x 1.95" WTB VelociRaptor 44/50 kevlar
—
Wheel Size
26" wheels
26" wheels
Geometry · choose a size for each bicycle
Geometry size
Head-tube angle
71°
71°
Seat-tube angle
73.5°
73°
Chainstay / rear center
—
422 mm
Wheelbase
—
1056 mm
Fork offset / rake
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.