The Sunday Primer BMX Bike is a great entry-level bike into the exciting world of freestyle BMX. Built around a pro-level geometry in a range of top tube sizes, the Primer is spec'd with quality parts like Odyssey Springfield brakes and Path Pro tires. The Primer also includes a fully sealed rear cassette hub and proven parts like the Sunday Freeze Stem and an FSA Headset. Note: This is the 20.75" toptube version of the Primer model. Specifications: Frame: Sunday Primer, Integrated Headtube Fork: Sunday Primer, 2-Piece Steerer Tube, Welded Preload Bars: Sunday, 2-Piece (28.5" Width) (9" Rise) (12deg Backsweep) (4deg Upsweep) Stem: Sunday Freeze Top Load (48mm) Headset: FSA Integrated (1-1/8") Grips: Sunday Cornerstone Cranks: 3-Piece, Chromoly (170mm 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 Extras: N/A Color: Matte Fire Engine Red Weight: 25.8 lbs Frame Geometry: Toptube: 20.75" Headtube Angle: 75deg Seattube Angle: 71deg Chainstays: 13.2" - 13.5" BB Height: 11.5" Stand Over Height: 8.75" Sizing Guideline: 5' 6" - 6' Rider Height NOTE: To ensure that every component on your bicycle is working properly, we recommend 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.