Velopedia Bicycle Archive

2015 Sunday AM Plus Aaron Ross

Original specifications: BMX mix drivetrain · 20 wheels · 26.85lbs published weight.

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At a glance

Archive #1393919
Model year
2015
Category
BMX
Original MSRP
$440.00
Sizes
20.75" TT
Weight
26.85lbs
In this record
20 specifications · original MSRP
Campaign
Original buildChromoly Down Tube and Dropouts · BMX mix · 20

Manufacturer catalog

Published sizes and colors

1 size

Manufacturer-published sizes and colors; availability and exact size/color pairings may vary by market or production run.

Published sizes

20.75" TT

Frameset

Frame Constructionwelded
Frame MaterialChromoly Down Tube and Dropouts
ForkAM Plus w/ Chromoly Dropouts
Fork MaterialChromoly steel

Drivetrain

Component GroupBMX mix
Crankset175mm, 3-piece, Chromoly, Sunday , 25T, Steel
Bottom Bracket19mm Sealed Mid
Rear Cogs9t
ChainKMC Z-510H

Brakes

BrakesOdyssey Springfield

Cockpit & Contact Points

HeadsetSunday Integrated, Sunday M16 AL Pre-Load Bolt
HandlebarSunday 9" Rise, 12° Back, 4° Upsweep
StemSunday Freeze Top-Load Stem 52mm
SaddleTripod
SeatpostTripod

Wheels & Tires

HubsSunday, Sealed, 36H, Female 3/8" Axle, Sunday, Sealed, 36H, 9T
RimsSunday Lightning Rim 36H
SpokesSteel Black
Front TireOdyssey OEM Chase Hawk Signature, 20 x 2.4" (F&R)
Wheel Size20

Gearing

Lower gears help on climbs. Higher gears suit higher speeds.

RPM

RPM = pedal turns per minute.

Published build25T · 9T
Ratio2.78:1
Estimated speed At 90 RPM Gear15.5 mph

Uses front tire 20×2.4; 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.

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Try your current gearingChanged tires or gears? Calculate your setup.

Your changes apply to this calculation. The archived build stays unchanged.

Your gearing setup
Gears

Use up to three front tooth counts, separated by /. For one rear sprocket, enter the same count twice.

Rear tire

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).

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.

Gear, dimension and cadence changes update results automatically.

Speeds are estimates. These calculations do not establish component compatibility or available tire clearance.

Parts & serviceability

Find replacement parts

Original specifications
Front tire · Original
Odyssey OEM Chase Hawk Signature

20 x 2.4" (F&R)

Replacement search: 20x2.4 bicycle tire Before ordering: Check rim type and tire clearance.
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Parts and service referenceQuick reference before buying parts

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

Front tire
Odyssey OEM Chase Hawk Signature, 20 x 2.4" (F&R)
Drivetrain
BMX mix
Bottom bracket / shell
19mm Sealed Mid
Campaign
Equipment inspection checks 10 checks based on 5 archived component groups Open equipment checksClose equipment checks
0 of 10 checked Progress stays in this browser for this record.

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: welded · Fork: AM Plus w/ Chromoly Dropouts · Chromoly steel

Drivetrain

Check drivetrain wear →

Archived: Group: BMX mix · Crankset: 175mm, 3-piece, Chromoly, Sunday , 25T, Steel · Bottom bracket: 19mm Sealed Mid · Rear cogs: 9t · Chain: KMC Z-510H

Brakes

Inspect the brakes →

Archived: Brakes: Odyssey Springfield

Wheels and tires

Check wheels and tires →

Archived: Wheel size: 20 · Rims: Sunday Lightning Rim 36H · Hubs: Sunday, Sealed, 36H, Female 3/8" Axle, Sunday, Sealed, 36H, 9T · Front tire: Odyssey OEM Chase Hawk Signature, 20 x 2.4" (F&R)

Controls and contact points

Archived: Headset: Sunday Integrated, Sunday M16 AL Pre-Load Bolt · Handlebar: Sunday 9" Rise, 12° Back, 4° Upsweep · Stem: Sunday Freeze Top-Load Stem 52mm · Seatpost: Tripod · Saddle: Tripod

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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.

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