Its size is the only thing that makes the Bora a small instrument. As soon as the hammers hit the strings, you will discover its wonderful, rich and surprisingly powerful sound. Once again we have put the very best materials, technology and design features of concert instruments into its construction. Its potential greatly transcends its actual size. Professional players favour it for practice purposes and domestic use.
| Length (mm) | 1590 |
| Width (mm) | 1525 |
| Height (mm) | 1025 |
| Weight (kg) | 309 |
| Sound board material | Resonance spruce wood |
| Active area (m²) | 1,019 |
| Ribs (number, shape) | 10, spherical |
| Soundboard construction | wedgewise tapered 9 - 7 mm |
| Cast iron plate | Wet sand casting |
| Surfacing of iron plate | light gold metallic paint, diamond effect |
| Pin block - material | Multiplex beech plywood, density 800 - 850 kg/m3 |
| Inner rim material | 9 laminas - beech, birch |
| Inner rim thickness | 35 mm |
| Wooden frame posts | 3 longitudinal |
| Descant post material | spruce |
| Cut off bar (corner cross rib) | no |
| Outer rim - material | Sandwich, solid alder wood core, plywood coated, inner veneer Ebony Makassar |
| Bridge - treble | solid maple wood |
| Bridge - bass | solid maple wood |
| Bridge pins | steel - ground tips |
| Agraffes material - number | brass, 1-59 |
| Duplexes - front | gis2 - c5 |
| Duplexes - rear | d2 - c5 |
| Strings - material | steel wire Röslau Germany, copper winding Degen Germany |
| Hitching of plain strings | double |
| Dampers - number | 1 - 68 |
| Action | standard - PETROF action, custom-made RENNER ORIGINAL, or RENNER - PETROF |
| Hammer heads | RENNER original |
| Keyboard | Tangential sawn spruce wood, individually balanced with lead |
| Keys balancing, touch weight | 55g in bass - 50g in treble |
| Black keys | Ebony wood |
| Pedals | left - Unacorda (Piano) pedal, middle - Sostenuto (Prolongement) pedal, right - Sustein pedal |
| Legs and castors | standard legs, small unbraked castors |
| PETROF sign on right side wall | no |
| Felts colour | red + black |
| Hydraulic slow close fallboard mech. | yes |
