Regulatory · Rectangle · MUTCD 11th edition
R9-21 Bicycles Use Shoulder Only
R9-21 Bicycles Use Shoulder Only sign from the MUTCD 11th edition: standard size (24" × 30"), with letter heights, border widths, and colors.
01
Standard sizes
| Size | Road type | Border | Corner radius | LettersUSE SHOULDER ONLY |
|---|---|---|---|---|
| 24" × 30" | — | 5/8" | 1 1/2" | 3 1/2"FHWA Series C |
02
Colors
- Legend
- Black
- Background
- White
- Border
- Black
03
Standard reference
- SHS 2024 sheet 2-287 (R9-21, 24x30 in); MUTCD 11th ed. Table 2C-1
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