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Radio Bikes Quartz Pro 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.

$2,056.42 MSRP·8700 to 8890 g

What the maker states

Wheel size
Built for a 20" wheel
Top tube
20.5" (on 1 of 4 variants); 20.9" (on 1 of 4 variants); 21.25" (on 1 of 4 variants); 21.75" (on 1 of 4 variants)
Rear axle
10mm
Head tube
Integrated-tapered-1-1/8-1.5
Rear brake mount
Disc
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.

4 verified variants

VariantTop tubeSize classPrice (MSRP)WeightSourceLast checkedBuild
Quartz Pro20.5"pro$2,056.428700 gmaker’s page2026-08-10Build with this
Quartz Pro L20.9"not stated$2,056.428700 gmaker’s page2026-08-10Build with this
Quartz Pro XL21.25"pro-xl$2,056.428890 gmaker’s page2026-08-10Build with this
Quartz Pro XXL21.75"pro-xxl$2,056.428890 gmaker’s page2026-08-10Build with this
What the maker states11 stated·4 not published
  • Built for a 20" wheel.
  • Top tube 20.5" (on 1 of 4 variants); Top tube 20.9" (on 1 of 4 variants); Top tube 21.25" (on 1 of 4 variants); Top tube 21.75" (on 1 of 4 variants).
  • Rear axle 10mm.
  • Head tube integrated-tapered-1-1/8-1.5.
  • Rear brake mount disc.
  • Driver cassette.
  • Driver 16 teeth.
  • Sprocket 43 teeth.
  • 2-piece cranks.
  • Spindle 24 mm spindle.
  • Size class pro (on 1 of 4 variants); Size class pro-xl (on 1 of 4 variants); Size class pro-xxl (on 1 of 4 variants).

4 further fields the checker looks for are not published by Radio Bikes, so we leave them blank rather than estimate them, and those 4 checks stay silent on this complete bmx. They are bottom bracket shell, seat system, front brake mount and tire width. 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 2026-08-10.

Where this sits

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