Onyx "Carbon Pro Symmetrical" BMX Race Rim - 20 Inch (406) - 36H - V-Brake
- Weight : 0.32kg / 0.71lbs
- Packaging Unit: 1 Piece
- Product ID (PID): 45969
- Product safety
- Note carbon rim notice
Weight
Source: BMX Glossary
Printed: 10/30/2026
The Onyx "Carbon Pro Symmetrical" BMX Race Rim - 20 Inch (406) - 36H - V-Brake is an Onyx carbon rim for BMX racing in size 406 with 21mm internal width. The spoke holes are centered (symmetrical), the rim is meant for the front wheel or for a rear wheel without disc brake. According to Onyx you run it with a V-brake only with special brake pads for carbon rims.
It is drilled with 36 holes, the ERD is 378mm. The black decals come loose in the box, matching decals in all Onyx hub colors are available as an accessory.
Onyx's build notes: check spoke tension with a tension meter, max. 115 kgf. Use only butted or bladed steel spokes, no straight gauge steel spokes, straight gauge titanium spokes are approved. Radial lacing is not permitted, a mechanical locking nipple or spoke prep is recommended. Tire pressure must not exceed 100 psi. Thanks to the bead lock the rim is tubeless ready, you additionally need a tubeless valve, rim tape (at least two wraps), sealant and a tubeless tire.
Facts: Onyx "Carbon Pro Symmetrical" BMX Race Rim - 20 Inch (406) - 36H - V-Brake
- Wheel Size: 20"
- Material: carbon
- Holes: 36H
- Width: 21mm internal
- ETRTO ⌀: 406mm
- ERD: 378mm
- Rim Wall: symmetric drilling, for front wheel or rear wheel without disc brake, rim brake only with pads for carbon rims
- Extras: tubeless ready (bead lock, at least 2 wraps of tubeless rim tape), max. tire pressure 100 psi, max. spoke tension 115 kgf, black decals included, not applied
Carbon rim notice
On carbon rims, single layers of the laminate can crack, usually from hard landings or overloading. Such damage from use is not a defect: it is covered neither by the statutory warranty nor by any manufacturer's warranty. A rim with cracked layers should be checked before it is ridden again.
Our recommendation: carbon rims are best suited to experienced, professional use. Front wheel rather than rear, and park, dirt or race rather than street. Land clean and you keep the weight advantage for longer. Worth being aware of.
