Jamis commuter 2 STEP-OVER

2019 UrbanCommuter Manufacturer page

Last known price: $539

Prices shown first for United States
Suspension: Rigid
Wheels: 700c
Drivetrain: 1 × 8 42t / 11–32t
Gear range: 291%
Weight: 14.51 kg 32.0 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Rim brake

Sizes

Size guide

The manufacturer did not publish rider heights for these sizes.

Components

12 of 18 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

6061 triple gauge aluminum main tubes and stays, new sloping design, kickstand mount, forged dropouts and fender/rack eyelets Not identified

Suspension

1 part

Fork
- Jamis

Drivetrain

6 parts

Bottom bracket

Sealed cartridge, 68 x 122.5mm Not identified
Cassette
- Shimano CS-HG41 11–32t
CS-HG41
Chain
- KMC Z7 7 speeds
Crankset

Forged alloy crank, single 42T chainring, 170mm (14-18”), 175mm (19-23”), with full length chainguard Not identified
Rear derailleur
- Shimano RD-M360-SGS
RD-M360-SGSRD-M360
Shifters
- Shimano Altus SL-M310
SL-M310

Brakes

1 part

Brakes
- Tektro CL530-RS

Wheels and tires

2 parts

Rims
- Alex Rims
ID-19
Tires
- CST

Cockpit and contact points

7 parts

Grips

Anatomic double density kraton with reflective end plug Not identified
Handlebar
- Jamis
Headset

Water-resistant sealed mechanism, threaded 1 1/8” Not identified
Pedals

Comfort platform with TPE non-slip insert Not identified
Saddle
- Jamis
Seatpost
- Jamis
Stem
- Jamis

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 14"

Table

Reach 403mm

Stack 570mm

Wheelbase 1078mm

Head angle 70.0°

Seat angle 74.5°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 700c wheel; exact published values are in the table below.

Size Reach Stack

Complete manufacturer geometry table 2 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	403	404
Stackmm	570	584
Top tube lengthmm	561	571
Seat tube lengthmm	356	457
Head tube lengthmm	120	130
Head tube angle	70°	71°
Seat tube angle	74.5°	74°
Chainstay lengthmm	445	445
Wheelbasemm	1078	1073
Front centermm	642	637
Bottom bracket dropmm	70	70
Standover heightmm	643	659
Fork rakemm	50	50
Trailmm	74	67
Stack/reach ratio	1.41	1.45

Not published by the manufacturer: Bottom bracket height, 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: Aluminum
Bicycle weight: 14.51 kg

32.0 lb

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 42
Largest chainring: 42
Rear sprockets: 8
Smallest sprocket: 11
Largest sprocket: 32
Lowest gear: 38.1 in
Highest gear: 110.7 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Rim brake

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Tire width: 38c
Travel: Front: Additional specification: Not available: Yes
Wheel material: Aluminum
Wheel size: 700c

Technical analysis

3 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Lowest gear

38.1 gear inches

This value is above the central range for this class.

Cohort: Urban / Commuter Model year: 2019
Sample: 246 bicycles with this information
Coverage: 73.6% of the class

Highest gear

110.7 gear inches

This value is within the central range for this class.

Cohort: Urban / Commuter Model year: 2019
Sample: 246 bicycles with this information
Coverage: 73.6% of the class

Shifting

Mechanical

8 of 334 bicycles with this information use electronic shifting.

Cohort: Urban / Commuter Model year: 2019
Sample: 334 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 14.6 km/h
Highest gear: 42.4 km/h

Total gear range 291%

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: 38.1–110.7 gear inches
Class reference (p10–p90): 21.8–126.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Urban / Commuter Model year: 2019
Lowest gear: 246 bicycles with this information, 73.6% of the class
Highest gear: 246 bicycles with this information, 73.6% of the class

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 2019 builds

Differences across 2019 builds
Specification	This bicycle Jamis commuter 2 STEP-OVER	Jamis Commuter 1	Jamis commuter 1 STEP-OVER	Jamis Commuter 2	Jamis commuter 3	Jamis commuter 3 STEP-OVER
Frame
Frame material	Aluminum	Steel	Steel	Aluminum	Aluminum	Aluminum
Fork material	Aluminum	Steel	Steel	Aluminum	Aluminum	Aluminum
Bicycle weight	14.51 kg	15.88 kg	15.88 kg	14.51 kg	14.86 kg	14.86 kg
Drivetrain
Front chainrings	1	1	1	1	2	2
Smallest chainring	42	44	44	42	36	36
Largest chainring	42	44	44	42	48	48
Rear sprockets	8	7	7	8	8	8
Smallest sprocket	11	14	14	11	11	11
Largest sprocket	32	34	34	32	32	32
Lowest gear	38.1 in	37.5 in	37.5 in	38.1 in	32.6 in	32.6 in
Highest gear	110.7 in	91.1 in	91.1 in	110.7 in	126.6 in	126.6 in
Brakes
Brake type	Rim brake	Rim brake	Rim brake	Rim brake	Hydraulic disc	Hydraulic disc