The Primer 18 is the ideal choice for riders whove outgrown a 16 but arent quite ready for a 20.

The shorter chain stay, lighter wheels and size-specific, pro-style frame geometry makes it the go- to bike for serious BMXers in this size range. The Primer is packed with quality parts like Odyssey Springfield Brakes and a fully sealed cassette hub for reliability that you can count on every time.

Key Features

• 18″ Pro-Style Geometry
• Sunday Freeze Front Load Stem
• 9t Cassette Hub
• Sunday Cornerstone Grips
• Odyssey Springfield Brakes
• FSA Headset
• KMC S1 Chain

Specifications:

• Frame:Sunday Primer, 18.5″ top tube, integrated 1-1/8″ head tube
• Fork:Sunday Primer, 18″ fork w/ 2-piece steerer tube and welded pre-load
• Handlebar:Sunday, 2-piece
• Stem:Sunday Freeze front load, 48mm
• Headset:FSA integrated, 1-1/8″
• Alloy Cap:FSA aluminum cap
• Brake Lever:Aluminum, U-brake compatible
• Brakes:Odyssey Springfield U-brake
• Brake Cable:Odyssey Quik Slic
• Grips:Sunday Cornerstone
• Seat:Sunday Badge, seat and post combo
• Seat Post:Integrated
• Seat Clamp:Sunday
• Sprocket:Sunday Sabertooth v2, 25T, steel
• Cranks:140mm, 3-piece, chromoly
• BB Parts:Sealed, Mid, 19mm
• Pedals:Wellgo platform, plastic
• Rims:P-7X aluminum, 18″, 28H
• Front Hub:Sunday, 28H, low-flange, loose-ball, 3/8″ axle
• Rear Hub:Sunday, 28H, sealed, 14mm axle w/ 9T Driver
• Spokes:14g steel, black
• Tires:Sunday Current, 18 x 2.2″ (F & R)
• Chain:KMC S1
• Approx. Weight: 23.3lbs (with brakes)

Frame Geometry

• Top Tube Length: 18.5″
• Head Tube Angle: 74.5
• Seat Tube Angle: 71
• Chainstay Length: 11.7-12.00
• Bottom Bracket Height: 10.35″
• Standover: 7.5″

Handlebar Geometry

• Rise: 7.65″
• Width: 25.5″
• Backsweep: 12
• Upsweep: 1