Sunday Primer 20" BMX Bike

The Sunday Primer 20" is built for riders stepping into full-size BMX who want a proper setup that’s ready to progress straight out of the box. Designed around Sunday’s proven pro-style geometry, it delivers a balanced ride that feels stable, responsive, and easy to control.

This version features 20", 20.5", 20.75" or 21" top tube options, making it ideal for mid-sized riders or anyone looking for a versatile, all-round setup. The geometry keeps things predictable and confidence-inspiring, while still offering enough responsiveness for learning tricks, riding park, or hitting the streets.

Built from hi-tensile steel, the Primer is tough and reliable, designed to handle regular riding and progression. It comes equipped with quality components throughout, including an Odyssey Springfield U-brake, sealed cassette hub, and wide 2.4" tyres for grip and comfort.

Specifications:

• Top Tube Length: 21”
• Headtube Angle: 75°
• Seattube Angle: 71°
• Rear End Length: 13.2"–13.5"
• Frame Material: 100% Hi-tensile steel
• Fork: Hi-tensile steel
• Bars: 2-piece, 9" rise, 28.5" width
• Stem: Front load
• Cranks: 160mm, 3-piece chromoly
• Sprocket: 25T
• Rear Hub: Sealed cassette, 9T driver
• Rims: 20", single wall
• Tyres: 20" x 2.4"
• Brakes: Odyssey Springfield U-brake

Size Guide: 165cm  - 185cm Tall 

When purchased online for postal delivery, this bike will arrive to you in a bike box and will require assembly.  Assembly will require fitting of the front wheel, handlebars, seat & Seat post,  pedals, pumping up the tyres, connecting and setting up the brakes. We recommend getting this done by an experienced bike mechanic. If you do not have access to a local bike shop or bike mechanic we recommend watching you tube instructional videos for safe assembly of this BMX bike.