Jamis Aurora

2018 RoadTouring Manufacturer page

Last known price: $929

Prices shown first for United States
Suspension: Rigid
Wheels: 700c
Drivetrain: 3 × 9 26–48t / 11–34t
Gear range: 571%
Weight: 13.49 kg 29.7 lb · Reference configuration not specified
Frame: Steel
Brakes: Rim brake

Sizes

Size guide

47cm
50cm
53cm
55cm
57cm
59cm
62cm

The manufacturer did not publish rider heights for these sizes.

Components

13 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

Reynolds 520 double-butted chromoly main tubes with SST tubing diameters, double-tapered cromo stays, extended head tube with reinforced collars, forged dropouts, fender/rack eyelets and 3 spoke carrier Not identified

Suspension

1 part

Fork

Lugged semi-sloping chromoly with canti bosses, low-rider carrier braze-ons, forged dropout with fender eyelets Not identified

Drivetrain

7 parts

Bottom bracket
- FSA
Cassette
- Shimano CS-HG201 9 speeds 11–34t
CS-HG201
Chain
- KMC
Crankset
- FSA 48/36/26t
Front derailleur
- Shimano Sora
FD-R3030
Rear derailleur
- Shimano Sora RD-R3000-GS 9 speeds
RD-R3000-GSRD-R3000GS
Shifters
- microSHIFT

Brakes

1 part

Brakes
- Tektro RL340

Wheels and tires

2 parts

Cockpit and contact points

5 parts

Handlebar
- Jamis
Headset

Threadless, 1 1/8” Not identified
Pedals

Touring platform, full alloy cage & body with toe clips Not identified
Saddle
- Jamis
Stem
- Jamis

Sizes and geometry

7 sizes Open in the geometry plotter

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

Size 55cm

Table

Reach 386mm

Stack 571mm

Wheelbase 1044mm

Head angle 71.5°

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 7 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	371	386	381	386	385	389	393
Stackmm	518	538	557	571	585	602	618
Top tube lengthmm	519	540	551	561	575	584	593
Seat tube lengthmm	470	500	530	550	570	590	620
Head tube lengthmm	100	115	135	150	165	180	195
Head tube angle	70°	71.5°	71.5°	71.5°	71.5°	72°	72.5°
Seat tube angle	74°	74°	73°	73°	72°	72°	72°
Chainstay lengthmm	440	440	440	440	440	440	440
Wheelbasemm	1024	1032	1033	1044	1047	1051	1055
Front centermm	592	600	601	612	615	619	623
Bottom bracket dropmm	65	65	65	65	65	65	65
Bottom bracket heightmm	271	271	271	271	271	271	271
Standover heightmm	726	796	810	826	841	859	881
Fork rakemm	50	50	50	50	50	50	50
Trailmm	69	60	60	59	60	57	54
Stack/reach ratio	1.40	1.39	1.46	1.48	1.52	1.55	1.57

Not published by the manufacturer: 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: Steel
Fork material: Steel
Bicycle weight: 13.49 kg

29.7 lb

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 3
Smallest chainring: 26
Largest chainring: 48
Rear sprockets: 9
Smallest sprocket: 11
Largest sprocket: 34
Lowest gear: 22.2 in
Highest gear: 126.6 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Rim brake

Fit and controls

Shifting: Mechanical

Additional specifications

Tire width: 32c
Wheel material: Aluminum
Wheel size: 700c

Gearing

Estimated speeds at 80 rpm

Lowest gear: 8.5 km/h
Highest gear: 48.5 km/h

Total gear range 571%

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: 22.2–126.6 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 2018 builds

Differences across 2018 builds
Specification	This bicycle Jamis Aurora	Jamis Aurora Elite
Frame
Bicycle weight	13.49 kg	13.27 kg
Drivetrain
Front chainrings	3	2
Smallest chainring	26	30
Largest chainring	48	50
Rear sprockets	9	10
Largest sprocket	34	32
Lowest gear	22.2 in	27.2 in
Highest gear	126.6 in	131.8 in
Brakes
Brake type	Rim brake	Hydraulic disc
Cockpit
Seatpost	Not informed	Rigid seatpost
Other specifications
Tire width	32c	35c
Bottom bracket standard	Not informed	BSA
Tire clearance	Not informed	Maximum tire width: 35c