Sunday Primer AL 14" BMX Bike Description:
The Sunday Primer 14" BMX Bike is built for little riders with big ambitions! Now featuring a lightweight aluminum frame, it's easier to pedal, maneuver, and control—perfect for building confidence while having a blast. Pro-level features like 3-piece chromoly cranks, a sealed cassette hub, sealed bottom bracket, and grippy 2.125" tires mean this bike is ready for everything from neighborhood rides to first trips to the skatepark. Less weight, more fun, and plenty of room to progress!
Specifications:
- Frame: Sunday Primer, Aluminum, Integrated Headtube
- Fork: Sunday Primer, High-Tensile Steel, 2-Piece Steerer Tube, Welded Preload
- Headset: FSA Integrated (1-1/8")
- Stem: Top Load, Aluminum (40mm)
- Bars: Sunday, High-Tensile Steel, 2-Piece (21" Width) (6" Rise) (10° Backsweep) (1° Upsweep)
- Grips: Velo Junior
- Cranks: 3-Piece, Chromoly (100mm Length)
- Bottom Bracket: Sealed Mid (19mm)
- Pedals: FPD Platform, Plastic (9/16")
- Sprocket: Sunday Sabertooth V2, Steel (25 Tooth)
- Chain: KMC S1
- Front Hub: Sunday Low-Flange 20H, Unsealed (3/8" Axle)
- Rear Hub: Sunday 20H, Sealed Cassette (14mm Axle)
- Driver: 10 Tooth
- Front Rim: P-7X, Aluminum (14") (20 Hole)
- Rear Rim: P-7X, Aluminum (14") (20 Hole)
- Front Tire: CST C3007 (14 x 2.125")
- Rear Tire: CST C3007 (14 x 2.125")
- Seat: Sunday Badge (Combo)
- Seat Post: Combo (25.4mm)
- Seat Clamp: Sunday
- Brake Lever: Junior Aluminum (U-Brake Compatible)
- Brakes: Odyssey Springfield U-Brake
- Gyro: -
- Gyro Tabs: Drilled (Not Included)
- Brake Mounts: Welded
- Extras: -
- Color: Marine Blue
- Weight: -
Geometry:
- Toptube Length: 14.25"
- Chainstay Length: 10.2" - 10.5"
- Headtube Angle: 74°
- Seattube Angle: 71°
- Bottom Bracket Height: 8.25"
- Standover: 6.75"
- Recommended Sizing Guide: 2'8" to 3'6" Rider Height
For assistance building your new bike, please check out our tech help section here for instructions and tips on how to build your bike to ensure it is safe.
Dan's Comp recommends riding with a helmet to protect that brain. Shop our selection of
freestyle helmets here.
Need help finding the right bike for you? Not sure what size would suit you best? Check out our BMX buyers guide video below!
Note: To ensure that every component on your bicycle is working properly, Dan's Comp recommends that all bikes be assembled by a qualified mechanic. Improper assembly of your bicycle may lead to premature wear or failure of individual components such as headsets, crank assembly and wheels. Failure to do so may void the manufacturer warranty.
This product is expected to become available for purchase on Wednesday, July 8, 2026
