Velopedia Bicycle Archive

1999 Jamis Boss Cruiser Aluminum

Original specifications: Shimano Altus · 7-speed · mechanical rear derailleur · 26" wheels.

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At a glance

Archive #82887

Model year: 1999
Category: Cruiser
Original MSRP: $299.95
Sizes: 19", 21", 23", 25", womens 17.5", womens 19.5"
Colors: Gloss Black, Starbeam Magenta, Starbeam Red
In this record: 24 specifications · archived image · original MSRP

Original build7005 aluminum · Cruiser Mix · 26" wheels

Manufacturer catalog

Published sizes and colors

6 sizes · 3 colors

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

Published sizes

19"21"23"25"womens 17.5"womens 19.5"

Published colors

Gloss BlackStarbeam MagentaStarbeam Red

Frameset

Frame Construction	TIG-welded
Frame Material	7005 aluminum
Fork Material	Hi-tensile steel, unicrown crown

Drivetrain

Component Group	Cruiser Mix
Shifters	Grip Shift MRX-200
Rear Derailleur	Shimano Altus
Crankset	Cyclone CPI-100, 44 teeth
Bottom Bracket	Victor VPB-33
BB Shell Width	68mm English
Rear Cogs	7-speed, 14 - 28 teeth
Chain	KMC Z-51, 1/2 x 3/32"
Pedals	Victor VP-560P

Brakes

Brakes	Tektro 823A linear-pull brakes, Tektro RBP-381A levers

Cockpit & Contact Points

Headset	1 1/8" Victor
Handlebar	Jamis cruiser
Stem	Tahoma Adjustable
Saddle	Jamis cruiser
Seatpost	Kalloy aluminum, 27.2mm diameter

Wheels & Tires

Hubs	Formula OV 31
Rims	Sun Rims Z-19, 36-hole
Spokes	Stainless steel, 2.0mm straight gauge
Spoke Nipples	Brass nipples
Front Tire	26 x 1.95" Kenda K-847
Wheel Size	26" wheels

Gearing

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

Pedal cadence

RPM

Speed units

RPM = pedal turns per minute.

Published build44T · 14–28T · 7-speed

Lowest1.57:1 Highest3.14:1 Total range200%

Estimated speed At 90 RPM Lowest gear10.9 mph Highest gear21.8 mph

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.

Try other gearing

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

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

Gears Drivetrain

Front teeth Smallest rear teeth Largest rear teeth

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

Rear tire

Rear tire marking

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).

Rim diameter (BSD, mm) Tire width (mm)

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.

Cadence (RPM) Speed units

Gear, dimension and cadence changes update results automatically.

Gearing comparison
Measure	Original	Your setup
Lowest ratio	—	—
Highest ratio	—	—
Total range	—	—
Lowest-gear speed	—	—
Highest-gear speed	—	—

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

Parts & serviceability

Find replacement parts

Original specifications

Seatpost · Original

Kalloy aluminum

27.2mm diameter

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Retailer offers

Race Face Ride XC Seatpost Black, 27.2x375mm

Replacement option

Competitive Cyclist ↗$38.99

Backcountry ↗$38.99

Chain · Original

KMC Z-51

1/2 x 3/32"

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Front tire · Original

26 x 1.95" Kenda K-847 Replacement search: 26x1.95 bicycle tire Before ordering: Check rim type and tire clearance.

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More parts (3)Fewer parts

Brake pads · Original

Tektro 823A linear-pull brakes

Tektro RBP-381A levers

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Rear derailleur · Original

Shimano Altus

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Hubs · Original

Formula OV 31

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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: 26 x 1.95" Kenda K-847
Drivetrain: 7-speed
Seatpost diameter: 27.2 mm
Bottom bracket / shell: Victor VPB-33 · 68mm English

Equipment inspection checks 9 checks based on 5 archived component groups Open equipment checksClose equipment checks

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 →

Frame and fork

Inspect the frame and fork →

Archived: Frame: TIG-welded · Fork: · Hi-tensile steel, unicrown crown

Look for dents or shape changes and inspect the edges of welds around the head tube, bottom bracket, seat cluster and suspension mounts for hairline cracks.

Drivetrain

Check drivetrain wear →

Archived: Group: Cruiser Mix · Shifters: Grip Shift MRX-200 · Rear derailleur: Shimano Altus · Crankset: Cyclone CPI-100, 44 teeth · Bottom bracket: Victor VPB-33 · Rear cogs: 7-speed, 14 - 28 teeth · Chain: KMC Z-51, 1/2 x 3/32"

Shift through every available gear under light load. Hesitation, skipping or inconsistent indexing can reflect wear, damage, poor adjustment or mismatched replacement parts.
Measure chain wear with a compatible gauge and inspect chainring, cassette or freewheel teeth. A new chain does not rule out wear in the remaining drivetrain.
Turn the cranks slowly, feel for rough bearings and check for side-to-side play. Inspect crank arms, chainring bolts and pedal threads for looseness or damage.

Brakes

Inspect the brakes →

Archived: Brakes: Tektro 823A linear-pull brakes, Tektro RBP-381A levers

Inspect pads, cables and housings, then examine both rim braking surfaces for concavity, cracking or heavy wear. Confirm each caliper returns and centers correctly.

Wheels and tires

Check wheels and tires →

Archived: Wheel size: 26" wheels · Rims: Sun Rims Z-19, 36-hole · Hubs: Formula OV 31 · Front tire: 26 x 1.95" Kenda K-847

Spin both wheels and watch for side-to-side and vertical movement. Check spoke tension, rim condition and hub play.
Inspect both tire casings for cuts, cracking, plugs, bulges or exposed threads and confirm the installed sizes are safe for the rims and available frame and fork clearance.

Controls and contact points

Archived: Headset: 1 1/8" Victor · Handlebar: Jamis cruiser · Stem: Tahoma Adjustable · Seatpost: Kalloy aluminum, 27.2mm diameter · Saddle: Jamis cruiser · Pedals: Victor VP-560P

Apply the front brake and rock the bike to check for headset play or notchiness. Inspect the stem, handlebar and clamp zones, then confirm every fastener and control is secure.
Check that the seatpost moves for adjustment and that the saddle, post and clamp hold securely without cracks, severe corrosion or damaged hardware.

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

1999 Jamis Boss Cruiser Aluminum