Jamis Allegro STEP-OVER

Name: Jamis Allegro STEP-OVER
Brand: Jamis

2019 UrbanFitness Manufacturer page

Last known price: $409

Prices shown first for United States
Suspension: Rigid
Wheels: 700c
Drivetrain: 3 × 7 28–48t / 14–34t
Gear range: 416%
Weight: 12.25 kg 27.0 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Rim brake

Sizes

Size guide

The manufacturer did not publish rider heights for these sizes.

Components

13 of 19 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

Size Specific Design 6061 aluminum with redesigned rear triangle, disc brake mounts, internal cable routing, hydro-formed top and down tube, taper gauge “S” bend stays, replaceable derailleur hanger and fender/rack eyelets Not identified

Suspension

1 part

Fork

Hi-Ten tapered straight blade unicrown with bulge butted steerer, low-rider carry mounts and forged dropouts with 2 fender eyelets Not identified

Drivetrain

7 parts

Bottom bracket
- VP
Cassette
- Shimano Tourney TZ MF-TZ500 14–34t
MF-TZ500
Chain
- KMC
Crankset
- Shimano FC-TY301 8 speeds 48/38/28t
FC-TY301
Front derailleur
- Shimano Tourney FD-TY510
FD-TY510
Rear derailleur
- Shimano Tourney RD-TY500 7 speeds
RD-TY500
Shifters
- Shimano ST-EF41
ST-EF41

Brakes

1 part

Brakes
- ProMax
TX-121

Wheels and tires

2 parts

Rims

Double wall alloy rims, 32H, alloy hubs with QR and 14g stainless steel spokes Not identified
Tires
- Kenda Eurotrek
K-197

Cockpit and contact points

7 parts

Grips

Anatomic double density kraton Not identified
Handlebar
- Jamis
Headset

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

Platform style, steel cage/resin body Not identified
Saddle
- Jamis
Seatpost
- Jamis
Stem
- Jamis

Sizes and geometry

3 sizes Open in the geometry plotter

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

Size 16"

Table

Reach 374mm

Stack 546mm

Wheelbase 1019mm

Head angle 71.0°

Seat angle 73.0°

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 3 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	371	374	378
Stackmm	533	546	559
Top tube lengthmm	534	541	549
Seat tube lengthmm	356	406	457
Head tube lengthmm	113	126	140
Head tube angle	71°	71°	71°
Seat tube angle	73°	73°	73°
Chainstay lengthmm	430	430	435
Wheelbasemm	1012	1019	1033
Front centermm	589	596	605
Bottom bracket dropmm	57.5	57.5	57.5
Standover heightmm	622	642	645
Fork rakemm	48	48	48
Trailmm	69	69	69
Stack/reach ratio	1.44	1.46	1.48

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: womens
Frame material: Aluminum
Fork material: Steel
Bicycle weight: 12.25 kg

27.0 lb

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 3
Smallest chainring: 28
Largest chainring: 48
Rear sprockets: 7
Smallest sprocket: 14
Largest sprocket: 34
Lowest gear: 23.9 in
Highest gear: 99.4 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Rim brake

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Tire width: 32c
Travel: Front: Additional specification: Not available: Yes
Wheel material: Aluminum
Wheel size: 700c

Technical analysis

2 measures

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

Lowest gear

23.9 gear inches

This value is within the central range for this class.

Cohort: Urban / Fitness Model year: 2019
Sample: 245 bicycles with this information
Coverage: 93.8% of the class

Highest gear

99.4 gear inches

This value is below the central range for this class.

Cohort: Urban / Fitness Model year: 2019
Sample: 245 bicycles with this information
Coverage: 93.8% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 9.1 km/h
Highest gear: 38.1 km/h

Total gear range 416%

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: 23.9–99.4 gear inches
Class reference (p10–p90): 21.8–131.8 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Urban / Fitness Model year: 2019
Lowest gear: 245 bicycles with this information, 93.8% of the class
Highest gear: 245 bicycles with this information, 93.8% 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 Allegro STEP-OVER	Jamis Allegro	Jamis Allegro Comp	Jamis Allegro Comp femme	Jamis Allegro Femme	Jamis Allegro Sport
Frame
Intended fit	womens	Unisex	Unisex	womens	womens	Unisex
Fork material	Steel	Steel	Aluminum	Aluminum	Steel	Steel
Bicycle weight	12.25 kg	12.36 kg	11.68 kg	11.45 kg	12.25 kg	12.25 kg
Drivetrain
Smallest chainring	28	28	26	26	28	28
Rear sprockets	7	7	9	9	7	8
Smallest sprocket	14	14	11	11	14	11
Largest sprocket	34	34	32	32	34	32
Lowest gear	23.9 in	23.9 in	23.6 in	23.6 in	23.9 in	25.4 in
Highest gear	99.4 in	99.4 in	126.6 in	126.6 in	99.4 in	126.6 in
Brakes
Brake type	Rim brake	Rim brake	Hydraulic disc	Hydraulic disc	Rim brake	Mechanical disc
Other specifications
Travel	Configuration: RigidFront: Additional specification: Not available: Yes	Configuration: RigidFront: Additional specification: Not available: Yes	Configuration: Rigid	Configuration: Rigid	Configuration: RigidFront: Additional specification: Not available: Yes	Configuration: RigidFront: Additional specification: Not available: Yes