Description
The Sunday 14" Primer AL is a proper little BMX for young riders getting onto their first freestyle bike, built around Sunday’s new lightweight aluminium starter-bike frame.
It keeps the scaled-down geometry and real BMX feel Sunday is known for, so younger riders can learn, progress and move up through wheel sizes without starting on a toy-store bike.
Specifications
Key fit measurements first, followed by the full build detail available for this bike. Variant-specific specifications should be checked against the selected option.
Bike & Fit
- Riding Style:
- Freestyle BMX
- Wheel Size:
- 14"
- Top Tube:
- 14.25"
- Model Year:
- 2026
- Weight:
- 10.57 kg
Frame & Cockpit
- Handlebar Rise:
- 6"
- Handlebar Width:
- 21"
- Headset Type:
- Integrated
Drivetrain
- Crank Length:
- 100 mm
- Spindle Diameter:
- 19 mm
- Bottom Bracket:
- MID
- Gearing:
- 25T
Wheels & Tyres
- Tyre Size:
- 14 x 2.125"
- Axle Standard:
- Front: 3/8" / Rear: 14 mm
- Hub System:
- Cassette
- Driver Size:
- 10T
- Spoke Hole Count:
- 20
Brakes
- Brake Position:
- Rear
- Brake Mount:
- U-brake / 990
Seating
- Seat Mount:
- Integrated Combo
About SUNDAY
Sunday Bikes launched in 2005 with a clear engineering focus: solve the durability problems BMX frames were experiencing as riding became harder and more technical. The brand became known for putting unusual attention into frame construction, tubing and manufacturing details, then carried that same approach into complete bikes and aftermarket components. Sunday’s range now covers youth bikes through to pro-level completes, frames and parts for modern freestyle BMX, with geometry...
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