The Sunday Primer 20″ BMX Bike might be sold as a beginner bike, but the componentry and geometry shows that it is much more. Sealed bearings in all of the important places, chromoly 3-piece cranks, and a list of Sunday and Odyssey components create a bike that has pro-level traits and geometry, but at a size specific for smaller riders. Utilizing a 20″ toptube, BMXers 4′ 10″ – 5′ 6″ need not look further. Sunday has you covered with the 2021 Primer 20″.

Specifications:

• Frame: Sunday Primer, Integrated Headtube
• Fork: Sunday Primer, 2-Piece Steerer Tube, Welded Preload
• Bars: Sunday, 2-Piece (28.5″ Width) (9″ Rise) (12 Backsweep) (4 Upsweep)
• Stem: Sunday Freeze Front Load (48mm)
• Headset: FSA Integrated (1-1/8″)
• Grips: Sunday Cornerstone
• Cranks: 3-Piece, Chromoly (160mm Length)
• Bottom Bracket: Sealed Mid (19mm)
• Pedals: Wellgo Platform, Plastic
• Chain: KMC S1
• Sprocket: Sunday Sabertooth v2, Steel (25 Tooth)
• Front Hub: Sunday Low-Flange Loose Ball (3/8″ Axle)
• Rear Hub: Sunday Sealed Cassette (14mm Axle)
• Driver: 9 Tooth
• Spokes: Steel, Black (14 Gauge)
• 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
• Seat Clamp: Sunday
• Lever: Odyssey Springfield
• Brake Cable: Odyssey Quik Slic
• Brakes: Odyssey Springfield U-Brake
• Brake Mounts: Welded
• Gyro Tabs: Drilled
• Weight: 25.8 lbs

Frame Geometry:

• Toptube: 20″
• Headtube Angle: 75
• Seattube Angle: 71
• Chainstays: 13.2″ – 13.5″
• BB Height: 11.5″
• Stand Over Height: 8.75″
• Sizing Guideline: 4′ 10″ – 5′ 6″ Rider Height