Uses front tire 24×2.125; rear size isn’t listed.
Velopedia Bicycle Archive
2015 Sunday Model C
Original specifications: BMX mix drivetrain · 24 wheels · 29.1lbs published weight.
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No archive photo is available for this record.
At a glance
Archive #1481940- Model year
- 2015
- Category
- BMX
- Sizes
- 22 TT
- Colors
- Black
- Weight
- 29.1lbs
- In this record
- 21 specifications
Model history 1 other year
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Identification clues
2015 archived details
- Published colors
- Black
- Frame
- Chromoly Down Tube and Head Tube
- Original equipment
- BMX mix
Clues, not proof of model year. Colors vary and components may have been replaced.
Original buildChromoly Down Tube and Head Tube · BMX mix · 24
Frameset
| Frame Construction | welded |
|---|---|
| Frame Material | Chromoly Down Tube and Head Tube |
| Fork | 24" Fork w/ Chromoly Steerer Tube and Dropouts |
| Fork Material | Steel |
Drivetrain
| Component Group | BMX mix |
|---|---|
| Crankset | 175mm, 3-piece, Chromoly, Sunday , 25T, Steel |
| Bottom Bracket | 19mm Sealed Mid |
| Rear Cogs | 10t |
| Chain | KMC Z-510H |
| Pedals | Odyssey Twisted PC |
Brakes
| Brakes | Odyssey Springfield |
|---|
Cockpit & Contact Points
| Headset | Sunday Integrated, Sunday M16 AL Pre-Load Bolt |
|---|---|
| Handlebar | 24UMPH XL Replica 7.75"Rise, 28" Width, 12° Backsweep, 4° Upsweep |
| Stem | Sunday Freeze Top-Load Stem 52mm |
| Saddle | Sunday Tripod |
| Seatpost | Tripod |
Wheels & Tires
| Hubs | Sunday, Sealed, 36H, 3/8" Axle, Sunday, Sealed, 36H, 10T |
|---|---|
| Rims | Sunday Lightning Rim 36H |
| Spokes | Steel Black |
| Front Tire | Innova 24 x 2.125" (F & R) |
| Wheel Size | 24 |
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Gearing
Lower gears help on climbs. Higher gears suit higher speeds.
RPM = pedal turns per minute.
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.
Try your current gearingChanged tires or gears? Calculate your setup.
Your changes apply to this calculation. The archived build stays unchanged.
Gearing results
| Measure | Original | Your setup |
|---|---|---|
| Lowest ratio | — | — |
| Highest ratio | — | — |
| Total range | — | — |
| Lowest-gear speed | — | — |
| Highest-gear speed | — | — |
Speeds are estimates. These calculations do not establish component compatibility or available tire clearance.
Parts & serviceability
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Parts and service referenceQuick reference before buying parts
Archived specifications for reference. Check the fitted parts before ordering.
- Front tire
- Innova 24 x 2.125" (F & R)
- Drivetrain
- BMX mix
- Bottom bracket / shell
- 19mm Sealed Mid
Equipment inspection checks 10 checks based on 5 archived component groups Open equipment checksClose equipment checks
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: 24" Fork w/ Chromoly Steerer Tube and Dropouts · Steel
Drivetrain
Check drivetrain wear →Archived: Group: BMX mix · Crankset: 175mm, 3-piece, Chromoly, Sunday , 25T, Steel · Bottom bracket: 19mm Sealed Mid · Rear cogs: 10t · Chain: KMC Z-510H
Brakes
Inspect the brakes →Archived: Brakes: Odyssey Springfield
Wheels and tires
Check wheels and tires →Archived: Wheel size: 24 · Rims: Sunday Lightning Rim 36H · Hubs: Sunday, Sealed, 36H, 3/8" Axle, Sunday, Sealed, 36H, 10T · Front tire: Innova 24 x 2.125" (F & R)
Controls and contact points
Archived: Headset: Sunday Integrated, Sunday M16 AL Pre-Load Bolt · Handlebar: 24UMPH XL Replica 7.75"Rise, 28" Width, 12° Backsweep, 4° Upsweep · Stem: Sunday Freeze Top-Load Stem 52mm · Seatpost: Tripod · Saddle: Sunday Tripod · Pedals: Odyssey Twisted PC
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.

