SHOEI RF-1500 MT.RADIANT
The RF-1500 is the newest entry in Shoei's RF road line, reaching us in the Burnside, Kaboom, Lean Angle, Dedicated 3, Marquez Barcelona, Ronin's Rest, Cloud Stream, Diggia Echo, Mt.... Read More
The RF-1500 is the newest entry in Shoei's RF road line, reaching us in the Burnside, Kaboom, Lean Angle, Dedicated 3, Marquez Barcelona, Ronin's Rest, Cloud Stream, Diggia Echo, Mt. Radiant, Chalk, Shine and Basalt finishes.
Shoei has not yet published a US specification for this model. Rather than carry over the RF-1400's numbers, we are leaving shell construction, certification and shield details off this page until Shoei releases them.
How to measure
Pass a soft tape measure horizontally around your head about one inch (2.5 cm) above the eyebrows — the largest measurement around the forehead. Move the tape slightly up and down to find the largest reading. If you fall between two sizes, try the smaller size first.
SHOEI size chart
| Size | Head circumference (cm) | Head circumference (inches) | Hat size |
|---|---|---|---|
| XS | 53-54 | 20 7/8 - 21 1/4 | 6 5/8 - 6 3/4 |
| S | 55-56 | 21 5/8 - 22 | 6 7/8 - 7 |
| M | 57-58 | 22 1/2 - 22 7/8 | 7 1/8 - 7 1/4 |
| L | 59-60 | 23 1/4 - 23 5/8 | 7 3/8 - 7 1/2 |
| XL | 61-62 | 24 - 24 3/8 | 7 5/8 - 7 3/4 |
| 2XL | 63-64 | 24 3/4 - 25 1/8 | 7 7/8 - 8 |
| 3XL | 65-66 | 25 5/8 - 26 | 8 1/8 - 8 1/4 |
One official SHOEI US chart for all adult models; fit can feel different between models at the same size, and size runs vary per model (3XL only on select models). SHOEI publishes no US youth street chart. 2XL/3XL appear as XXL/XXXL on SHOEI's own chart — normalized here to match our size filter vocabulary.
Manufacturer sizing data · verified July 8, 2026