
We will explain about the "R4-C" Radiation-4channels, which is available as a custom order.
These four channels can be added to any model as a custom order.

Mayhem will design and install the board optimally to suit the model and fin position.
Unlike the classic parallel channel, the new R4-C channel is designed to work in conjunction with the fins (combined with the fin's functions).

It's faster and more flexible in small to average waves.
It helps you turn and drive with tight, radical arcs.
The old-fashioned deep channel that runs parallel to the stringer is powerful, and in driving surf it gives a fast down-the-line feel and feels very comfortable, but it has the disadvantage of being prone to getting caught and dragging when doing quick turns on a daily basis.

Mayhem's new R4-C channel provides even more grip and drive.
It increases the propulsion and buoyancy of the entire board when paddling, and provides even more acceleration when turning.

The R4-C is a fun, fast and exciting design for us, as it works well not only in clean, flat waves but also in slow, powerless waves.
The price for adding options to the R4-C is ¥20,000.
The airbrush is an additional 20,000 yen.
So,

The ``R4-C'' + ``airbrush'' set with this specification costs 40,000 yen.
You can get faster and more accelerating performance,
We highly recommend installing the R4-C when ordering a custom bike.