Velopedia Bicycle Archive
Compare Bicycles
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.
- Handling
1997 Rocky Mountain Hammer Race has a 0.5° slacker head-tube angle than 1998 Rocky Mountain Hammer Race in the archived geometry. Frame size is not identified for 1998 Rocky Mountain Hammer Race and 1997 Rocky Mountain Hammer Race.
Fork offset, tire size and wheelbase also affect steering; head angle alone is not a handling verdict.
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.
Lowest0.73:1Highest3.82:1Total range521%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 26×2.1; 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
1997 Rocky Mountain Hammer Race
Overview
Model Year
1998
1997
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
$1,059.00
Colors
Black
Black
Sizes
14.5", 16", 17.5", 18.5", 19.5", 20"
16.5", 17.5", 18.5", 19.5", 21"
Weight
26.2 lb
26.2 lb
Frameset
Frame Construction
Welded
TIG-welded
Frame Material
Chromoly, double-butted
Tange chromoly, triple-butted
Fork
Rock Shox Judy T2
Rock Shox Indy XC
Fork Material
Aluminum/magnesium, triple-clamp crown
Magnesium, triple-clamp crown
Drivetrain
Component Group
Mountain Mix
Shimano Deore LX
Shifters
Shimano Deore LX RapidFire SL
Grip Shift SRT-800 X-Ray
Front Derailleur
Shimano Deore XT, top-pull/clamp-on 31.8mm
Shimano Deore LX top-swing, top-pull/clamp-on 28.6 mm
Rear Derailleur
Shimano Deore XT SGS
Shimano Deore XT SGS
Crankset
Race Face Turbine LP, 22/32/42 teeth
Sugino Impel 350, 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 - 30 teeth
Chain
Taya TB-600, 1/2 x 3/32"
Sachs SC-40, 1/2 x 3/32"
Pedals
Ritchey Logic
Ritchey Logic (clipless)
Brakes
Brakes
Avid 1D-20 brakes, Avid SD-2.0 L levers
Shimano Deore LX V-Brake brakes, Avid SD-2.0 levers
Cockpit & Contact Points
Headset
1 1/8" threadless Ritchey Logic Expert
1 1/8" threadless Ritchey Logic
Handlebar
RMB aluminum
RMB aluminum
Handlebar Extensions
Not included
Not included
Stem
Ritchey CompLite
RMB aluminum
Saddle
Selle Italia Nitrox PD
Selle Italia
Seatpost
Ritchey Expert
RMB aluminum, 26.8 mm diameter
Wheels & Tires
Hubs
Shimano Deore LX
Shimano Deore LX
Rims
Sun Rims CR18
Sun Rims DW 6000, 32-hole
Spokes
DT stainless steel, 2.0mm straight gauge
DT stainless steel, 1.8mm straight gauge
Spoke Nipples
—
Alloy nipples
Front Tire
26 x 1.95" WTB VelociRaptor 44/50
26 x 2.10" WTB VelociRaptor
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°
70.5°
Seat-tube angle
73.5°
73°
Chainstay / rear center
—
430 mm
Wheelbase
—
1058 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.