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Sunday Primer Complete BMX

What the checker saysnot checked

No fit check runs on a complete bike, and we will not pretend one does. A complete bike does not fill a slot in the builder, so the checker has no counterpart to compare it against and has never produced a single sentence about one.

Open it in the builder

The checker compares the dimensions listed in what we check, and what we don’t. “No conflicts found” means no conflict among those dimensions — not a guarantee that a build works. Errors mean it won’t fit; warnings mean it works but check; infos are notes.

$509.99 MSRP·11703 g

What the maker states

Wheel size
Built for a 20" wheel
Top tube
20.5" (on 1 of 2 variants)
Rear axle
14mm
Bottom bracket shell
Bottom-bracket shell mid
Head tube
Integrated-1-1/8
Driver type
Driver cassette

A value shown as a set or a range differs between this model’s variants and is never one variant’s spec.

2 verified variants

VariantTop tubePrice (MSRP)WeightSourceLast checkedBuild
Primer (2027) (2027)not stated$509.9911703 gmaker’s page2026-08-05Build with this
Primer Park (2027) (2027)20.5"$509.9911703 gmaker’s page2026-08-05Build with this
What the maker states11 stated·4 not published
  • Built for a 20" wheel.
  • Top tube 20.5" (on 1 of 2 variants).
  • Rear axle 14mm.
  • Bottom-bracket shell mid.
  • Head tube integrated-1-1/8.
  • Driver cassette.
  • Driver 9 teeth.
  • Sprocket 25 teeth.
  • 3-piece cranks.
  • Spindle 19mm.
  • Tire width 2.4.

4 further fields the checker looks for are not published by Sunday, so we leave them blank rather than estimate them, and those 4 checks stay silent on this complete bmx. They are size class, seat system, front brake mount and rear brake mount. Each is recorded as “not stated by the maker (not checked)”.

Source: each variant links the maker’s own page in the table above. Last checked 2026-08-05.

Where this sits

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