Jamis earth cruiser 3 STEP-THRU

Name: Jamis earth cruiser 3 STEP-THRU
Brand: Jamis

2021 UrbanCruiser Manufacturer page

Last known price: $459

Prices shown first for United States
Suspension: Rigid
Wheels: 26″
Drivetrain: 1 × 1 44t / 23t
Gear range: 100%
Weight: 13.95 kg 30.8 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Coaster brake

Sizes

Size guide

The manufacturer did not publish rider heights for these sizes.

Components

7 of 17 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

Classic Cantilever design with 6061 aluminum tubing, includes kickstand and painted steel chainguard Not identified

Suspension

1 part

Fork

Hi-tensile unicrown with radiused blades Not identified

Drivetrain

6 parts

Bottom bracket

Sealed cartridge, 68 x 122.5mm Not identified
Cassette
- Shimano
Chain
- KMC
Crankset

Forged alloy crank, 170mm, with 44T chainring Not identified
Rear derailleur

None
Shifters
- Shimano

Brakes

1 part

Brakes
- Shimano

Wheels and tires

2 parts

Cockpit and contact points

7 parts

Grips

Comfort style Not identified
Handlebar
- Jamis
Headset

Internal cup, threaded, 1 1/8” Not identified
Pedals

Cruiser platform with grip tape Not identified
Saddle

Earth Cruiser Comfort with memory foam padding, synthetic suede top, burnished sides and bumper springs Not identified
Seatpost

Alloy micro-adjust, 27.2 x 300mm, with 31.8mm alloy clamp and cromo seatpin Not identified
Stem

Alloy hi-rise, 180mm quill, 100mm extension, with removeable 2-bolt cap Not identified

Sizes and geometry

2 sizes Open in the geometry plotter

Complete rider-height ranges are not published for these sizes. You can still explore the geometry below.

Size 15"

Table

Geometry diagram unavailable

The drawing needs reach and stack, which the manufacturer did not publish. Available facts remain in the table.

Size

Complete manufacturer geometry table 2 published sizes

Complete manufacturer geometry by size
Measurement
Top tube lengthmm	605	626
Seat tube lengthmm	381	432
Head tube lengthmm	120	130
Head tube angle	69°	69°
Seat tube angle	67°	67°
Chainstay lengthmm	475	475
Wheelbasemm	1087	1107
Bottom bracket heightmm	280	280
Standover heightmm	516	528
Fork rakemm	55	55

Not published by the manufacturer: Reach, Stack, Front center, Bottom bracket drop, Trail, Stack/reach ratio, Front travel, Rear travel, Crank length, Handlebar width, Stem length, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
Fork material: Steel
Bicycle weight: 13.95 kg

30.8 lb

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 44
Largest chainring: 44
Rear sprockets: 1
Smallest sprocket: 23
Largest sprocket: 23
Lowest gear: 49.7 in
Highest gear: 49.7 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Coaster brake

Fit and controls

Seatpost: Rigid seatpost
Shifting: No shifting

Additional specifications

Tire width: 2.35″
Travel: Front: Additional specification: Not available: Yes
Wheel material: Aluminum
Wheel size: 26″

Gearing

Estimated speeds at 80 rpm

Lowest gear: 19.1 km/h
Highest gear: 19.1 km/h

Total gear range 100%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 49.7–49.7 gear inches

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2021 builds
Specification	This bicycle Jamis earth cruiser 3 STEP-THRU	Jamis Earth Cruiser 1	Jamis earth cruiser 1 STEP-THRU	Jamis Earth Cruiser 2	Jamis Earth Cruiser 3
Frame
Frame material	Aluminum	Aluminum	Aluminum	Steel	Aluminum
Bicycle weight	13.95 kg	13.27 kg	13.27 kg	15.2 kg	13.95 kg
Drivetrain
Smallest sprocket	23	18	18	18	23
Largest sprocket	23	18	18	18	23
Lowest gear	49.7 in	63.6 in	63.6 in	63.6 in	49.7 in
Highest gear	49.7 in	63.6 in	63.6 in	63.6 in	49.7 in