Primer 18" 2020 BMX Stunt Bike

Experience your first manoeuvres with the 18" Primer

The Primer 18" by Sunday is an enjoyable and user-friendly freestyle BMX designed for children and young riders who are not quite prepared for a 20" bike yet. Every component of the Primer 18" adheres to BMX geometry, ensuring the transition to a full-sized setup will be noticeably smoother than moving from a standard child's bike.

For the 2020 model, the team at Sunday included a fully sealed cassette hub, offering excellent rolling performance and minimal maintenance requirements.

Technical specifications

• Low-maintenance 3-piece cranks with shortened 140mm arms for improved pedalling
• Integrated 1-1/8" headset designed for smooth handling and steering
• 19mm mid bottom bracket with sealed bearings
• Grippy Sunday Current tyres in a semi-fat 2.2" design for maximum grip
• Aftermarket Sunday Sabertooth V2 sprocket - the same as found on many high-end completes
• Classic 2-piece bars scaled down to a 7.65" height and 25.5" width
• Fully sealed cassette hub featuring 14mm axles and a 9T driver
• Specifically sized to facilitate easy manoeuvring and control for kids and younger riders