Radio Bikes Quartz Carbonic 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.
$2,946.00 MSRP·8740 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
- 15mm
- 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
| Variant | Top tube | Sprocket teeth | Size class | Price (MSRP) | Weight | Source | Last checked | Build |
|---|---|---|---|---|---|---|---|---|
| Quartz Carbonic Pro | 20.5" | Sprocket 43 teeth | pro | $2,946.00 | 8740 g | maker’s page | 2026-08-10 | Build with this |
| Quartz Carbonic Pro L | 20.9" | Sprocket 43 teeth | not stated | $2,946.00 | 8740 g | maker’s page | 2026-08-10 | Build with this |
| Quartz Carbonic Pro XL | 21.25" | Sprocket 44 teeth | pro-xl | $2,946.00 | 8740 g | maker’s page | 2026-08-10 | Build with this |
| Quartz Carbonic Pro XXL | 21.75" | Sprocket 44 teeth | pro-xxl | $2,946.00 | 8740 g | maker’s page | 2026-08-10 | Build 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 15mm.
- Head tube integrated-tapered-1-1/8-1.5.
- Rear brake mount disc.
- Driver cassette.
- Driver 16 teeth.
- 2-piece cranks.
- Spindle 24 mm spindle.
- Sprocket 43 teeth (on 2 of 4 variants); Sprocket 44 teeth (on 2 of 4 variants).
- 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.