Velopedia Bicycle Archive

2009 Jamis Earth Cruiser 1

Original specifications: Cruiser Mix drivetrain · 26" wheels · 28.2 lb published weight.

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At a glance

Archive #17957

Model year: 2009
Category: Cruiser
Original MSRP: $375.00
Sizes: 18.5", 21.5"
Colors: Gloss Black/Machine Silver, Mash/Bone, Outback Gold, Starfire Blue/Machine Silver
Weight: 28.2 lb
In this record: 23 specifications · original MSRP

Model history 12 other years

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Identification clues

2009 archived details

Published colors: Gloss Black/Machine Silver, Mash/Bone, Outback Gold, Starfire Blue/Machine Silver
Frame: 7005 aluminum
Original equipment: Cruiser Mix

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

Original build7005 aluminum · Cruiser Mix · 26" wheels

Historical catalog variants

Archived sizes and colors

8 item records

Item-level catalog entries recovered from Velopedia’s original bicycle archive. They document how this model was listed historically; they do not identify the frame size associated with legacy reference geometry or indicate current availability.

Published sizes

18.5"21.5"

Published colors

Gloss Black/Machine SilverMash/BoneOutback GoldStarfire Blue/Machine Silver

View 8 archived size/color combinations

Size	Color
18.5"	Gloss Black/Machine Silver
21.5"	Gloss Black/Machine Silver
18.5"	Mash/Bone
21.5"	Mash/Bone
18.5"	Outback Gold
21.5"	Outback Gold
18.5"	Starfire Blue/Machine Silver
21.5"	Starfire Blue/Machine Silver

Historical catalog evidence. Exact specifications and naming may vary by market, production run or manufacturer revision.

Frameset

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

Drivetrain

Component Group	Cruiser Mix
Crankset	Forged Alloy, 44 teeth
Bottom Bracket	Cotterless, 119mm spindle
BB Shell Width	68mm
Cassette	Shimano
Rear Cogs	1-speed, 18 teeth
Chain	KMC Z51 NP
Pedals	Cruiser Platform

Brakes

Brakes	Shimano coaster rear

Cockpit & Contact Points

Headset	1 1/8" sealed
Handlebar	Jamis Cruise Control
Handlebar Extensions	Not included
Stem	Alloy hi-rise quill
Saddle	Earth Cruiser Comfort w/Spring
Seatpost	Alloy Micro Adjust, 27.2mm diameter

Wheels & Tires

Hubs	Front: Alloy nutted, Rear: Shimano Coaster Brake
Rims	Alex Zuma, 36-hole
Spokes	Stainless, 14ga. (2.0mm)
Front Tire	26 x 2.125" Jamis Cruise Control
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.

All published sizes44T · 18T · 1-speed

Ratio2.44:1

Estimated speed At 90 RPM Gear17.2 mph

Uses front tire 26×2.125; 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

Alloy Micro Adjust

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 Z51 NP

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Front tire · Original

26 x 2.125" Jamis Cruise Control Replacement search: 26x2.125 bicycle tire Before ordering: Check rim type and tire clearance.

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More parts (1)Fewer parts

Rims · Original

Alex Zuma

36-hole

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Parts and service referenceQuick reference before buying parts

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

Front tire: 26 x 2.125" Jamis Cruise Control
Drivetrain: 1-speed
Seatpost diameter: 27.2 mm
Bottom bracket / shell: Cotterless, 119mm spindle · 68mm

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: · High-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 · Crankset: Forged Alloy, 44 teeth · Bottom bracket: Cotterless, 119mm spindle · Cassette: Shimano · Rear cogs: 1-speed, 18 teeth · Chain: KMC Z51 NP

Check chain tension and chainline, rotate the drivetrain through a full revolution and confirm the rear axle or tensioning hardware cannot slip.
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: Shimano coaster rear

Inspect pads and braking surfaces, check the complete cable or hose path, and confirm both controls feel consistent and return cleanly.

Wheels and tires

Check wheels and tires →

Archived: Wheel size: 26" wheels · Rims: Alex Zuma, 36-hole · Hubs: Front: Alloy nutted, Rear: Shimano Coaster Brake · Front tire: 26 x 2.125" Jamis Cruise Control

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" sealed · Handlebar: Jamis Cruise Control · Stem: Alloy hi-rise quill · Seatpost: Alloy Micro Adjust, 27.2mm diameter · Saddle: Earth Cruiser Comfort w/Spring · Pedals: Cruiser Platform

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.

2009 Jamis Earth Cruiser 1