The Primer 18” is the ideal choice for riders who’ve outgrown a 16” but aren’t quite ready for a 20”.
The shorter chainstay, 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 v1, 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°
*Specs subject to change without notice.
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