Velopedia Bicycle Archive

1995 Diamondback Expert

Original specifications: Shimano RSX STI drivetrain · 700c wheels · 25 lb published weight.

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At a glance

Archive #34049
Model year
1995
Category
Road
Original MSRP
$650.00
Sizes
19", 21", 23", 25"
Colors
Pacific green
Weight
25 lb
Geometry
Legacy reference
In this record
23 specifications · original MSRP · geometry
Model history 7 other years

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Identification clues

1995 archived details

Published colors
Pacific green
Frame
Chromoly, double-butted
Original equipment
Shimano RSX STI

Clues, not proof of model year. Colors vary and components may have been replaced.

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Original buildChromoly, double-butted · Shimano RSX STI · 700c wheels

Manufacturer catalog

Published sizes and colors

4 sizes · 1 color

Manufacturer-published sizes and colors; availability and exact size/color pairings may vary by market or production run.

Published sizes

19"21"23"25"

Published colors

Pacific green

Frameset

Frame ConstructionTIG-welded steel
Frame MaterialChromoly, double-butted
ForkSpinner
Fork MaterialChromoly, unicrown crown

Drivetrain

Component GroupShimano RSX STI
ShiftersShimano RSX STI Dual Control
Front DerailleurShimano RSX (triple), bottom-pull/clamp-on 28.6 mm
Rear DerailleurShimano RSX
CranksetShimano RSX, 26/36/46 teeth
Rear Cogs7-speed, 13 - 26 teeth
ChainKMC HP-70S, 1/2 X 3/32"
PedalsHTI P-19

Brakes

BrakesDia-Compe BRS-100 brakes, Shimano RSX levers

Cockpit & Contact Points

Headset1"
StemKalloy KF-120
SaddleVelo VL-178EM
SeatpostLee Chi alloy SP-204, 26.6 mm diameter

Wheels & Tires

HubsShimano RSX
RimsMavic 195, 32-hole
SpokesStainless steel, straight gauge
Spoke NipplesBrass nipples
Front Tire700 x 25c Cheng Shin
Wheel Size700c wheels

Geometry

Legacy reference · 6 measurements

Historical measurements. Frame size unknown.

All geometry measurementsLegacy reference · 6 measurements
MeasurementLegacy reference
Top tube546.1 mm
Head-tube angle72°
Seat-tube angle73.5°
Chainstay / rear center419.1 mm
Wheelbase1003.3 mm
Fork offset / rake50.8 mm

Frame size not recorded.

Gearing

Lower gears help on climbs. Higher gears suit higher speeds.

RPM

RPM = pedal turns per minute.

All published sizes46/36/26T · 13–26T · 7-speed
Lowest1.00:1 Highest3.54:1 Total range354%
Estimated speed At 90 RPM Lowest gear7.1 mph Highest gear25.1 mph

Uses front tire 700C×25; 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.

Try other gearing

Try your current gearingChanged tires or gears? Calculate your setup.

Your changes apply to this calculation. The archived build stays unchanged.

Your gearing setup
Gears

Use up to three front tooth counts, separated by /. For one rear sprocket, enter the same count twice.

Rear tire

Apply the marking on your rear tire or edit its dimensions below. Older or fractional inch sizes need the ISO marking (e.g. 37-590).

For 32-622, width is 32 mm and rim diameter is 622 mm. Use the rear tire on mixed-wheel bikes. Leave both fields empty to compare ratios only.

Gear, dimension and cadence changes update results automatically.

Speeds are estimates. These calculations do not establish component compatibility or available tire clearance.

Parts & serviceability

Find replacement parts

Original specifications
Front tire · Original
700 x 25c Cheng Shin Replacement search: 700cx25 bicycle tire Before ordering: Check rim type and tire clearance.
Crankset · Original
Shimano RSX

26/36/46 teeth

Stem · Original
Kalloy KF-120
More parts (2)Fewer parts
Seatpost · Original
Lee Chi alloy SP-204

26.6 mm diameter

Hubs · Original
Shimano RSX

Based on the original build. Check fit and installed parts before ordering. Affiliate links may earn Velopedia a commission. As an Amazon Associate I earn from qualifying purchases.

Parts and service referenceQuick reference before buying parts

Archived specifications for reference. Check the fitted parts before ordering.

Front tire
700 x 25c Cheng Shin
Drivetrain
7-speed
Seatpost diameter
26.6 mm
Campaign
Equipment inspection checks 10 checks based on 5 archived component groups Open equipment checksClose equipment checks
0 of 10 checked Progress stays in this browser for this record.

Checks selected from the archived equipment. Confirm what is fitted today. This is not a complete safety inspection; use the full inspection guide before test riding.

Full used-bike inspection guide →

Archived: Frame: TIG-welded steel · Fork: Spinner · Chromoly, unicrown crown

Archived: Group: Shimano RSX STI · Shifters: Shimano RSX STI Dual Control · Front derailleur: Shimano RSX (triple), bottom-pull/clamp-on 28.6 mm · Rear derailleur: Shimano RSX · Crankset: Shimano RSX, 26/36/46 teeth · Rear cogs: 7-speed, 13 - 26 teeth · Chain: KMC HP-70S, 1/2 x 3/32"

Archived: Brakes: Dia-Compe BRS-100 brakes, Shimano RSX levers

Archived: Wheel size: 700c wheels · Rims: Mavic 195, 32-hole · Hubs: Shimano RSX · Front tire: 700 x 25c Cheng Shin

Controls and contact points

Archived: Headset: 1" · Stem: Kalloy KF-120 · Seatpost: Lee Chi alloy SP-204, 26.6 mm diameter · Saddle: Velo VL-178EM · Pedals: HTI P-19

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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.

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