Sunday Primer Park 20" BMX Bike Description:
The Sunday Primer Park BMX Bike is the perfect starting point for riders looking to dive into park riding and master tricks like barspins and tailwhips. Built around modern geometry, it comes fitted with a full Odyssey Gyro system, letting you spin the bars freely while keeping your brakes fully functional. Designed with beginners in mind but packed with features typically found on higher-end bikes, the Primer Park includes durable chromoly 3-piece cranks, sealed bottom bracket bearings, a sealed cassette rear hub, and several trusted Odyssey components. It's an ideal complete for riders ready to build skills and progress at the skatepark.
Note: This is the 20.5" toptube version of the Primer model.
Specifications:
- Frame: Sunday Primer, high-tensile steel, integrated headtube
- Fork: Sunday Primer, high-tensile steel, 2-piece steerer tube, welded preload
- Bars: Sunday, high-tensile steel, 2-piece (28.5" Width) (9" Rise) (12° Backsweep) (4° Upsweep)
- Stem: Sunday Freeze top load (48mm)
- Headset: FSA Integrated (1-1/8")
- Grips: Sunday Cornerstone
- Cranks: 3-Piece, chromoly (160mm Length)
- Bottom Bracket: Sealed Mid (19mm)
- Pedals: FPD platform, plastic
- Sprocket: Sunday Sabertooth v2, steel (25T)
- Chain: KMC S1
- Front Hub: Sunday low-flange, unsealed (3/8" Axle)
- Rear Hub: Sunday sealed cassette (14mm Axle)
- Driver: 9 Tooth
- Front Rim: P-7X, aluminum (20") (36 Hole)
- Rear Rim: P-7X, aluminum (20") (36 Hole)
- Front Tire: Odyssey Path Pro OEM (20 x 2.4")
- Rear Tire: Odyssey Path Pro OEM (20 x 2.4")
- Seat: Sunday Badge (Combo)
- Seat Post: Combo (25.4mm)
- Seat Clamp: Sunday
- Brake Lever: Odyssey M2 Medium
- Brakes: Odyssey Springfield U-Brake
- Gyro: Odyssey G3 Gyro
- Gyro Tabs: Drilled (Included)
- Brake Mounts: Welded
- Extras: Odyssey M2 Upper Cable, 2x Single Lower Cable
- Color: Berry
- Weight: 25.8 lbs
Geometry:
- Toptube Length: 20.5"
- Chainstay Length: 12.7" - 13"
- Headtube Angle: 75.5°
- Seattube Angle: 71°
- Bottom Bracket Height: 11.625"
- Standover: 7.5"
- Sizing Guideline: 5' 3" - 5' 9" 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
