Colombo Design Gira JM11 RSB/0 – Zero Evolution Door Lever
The Colombo Design Gira JM11 RSB/0, designed by Jasper Morrison, is a pair of brass interior door levers featuring the Zero Evolution system. Its clean, straight grip and minimal circular mounting base create a restrained yet distinctive design with reduced visual bulk.
Design and Zero Evolution system
Gira expresses contemporary design through simple forms, balanced proportions and regular surfaces. The horizontal grip has an elongated geometric profile with a discreet transition towards the mounting base, without unnecessary decoration.
Colombo Design describes Jasper Morrison's Gira as a sophisticated yet understated handle, adaptable to different interior styles. Its restrained appearance makes it suitable for residential interiors and contemporary architectural projects.
The JM11 RSB/0 features the Zero Evolution system, with a minimal mounting base that reduces the visible presence of conventional door hardware. The lever pair operates a compatible interior door lock.
Technical specifications
| Manufacturer | Colombo Design |
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| Collection / model | Contemporary – Gira |
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| Designer | Jasper Morrison |
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| Official product code | JM11 RSB/0 |
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| Product type | Pair of interior door lever handles |
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| Material | Brass |
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| System | Zero Evolution |
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| Mounting base | Minimal circular design |
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| Lever length shown in drawing | 133.5 mm |
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| Projection shown in drawing | 62 mm |
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| Vertical dimension shown | 33.5 mm |
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| Finishes | OL, CR, CM, VM |
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| Lock escutcheons | Separate accessories |
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| Origin | Made in Italy |
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Finishes and coordinated accessories
The Gira JM11 RSB/0 is offered in Oroplus (OL), Polished Chrome (CR), Matt Chrome (CM) and Vintage Matt (VM). These finishes highlight the handle's geometric form while preserving its understated design.
Coordinated Zero Evolution accessories include ZE13 BB/0 Patent keyhole escutcheons, ZE13 Y/0 Euro-profile cylinder escutcheons and the ZE19 BZG/0 bathroom privacy turn set. These fittings are separate products selected according to the installed door lock.
The collection also includes the Gira JM11 R/RY standard round-rose door lever and the JM12 DK0/SM Zero Evolution tilt-and-turn window handle, each in its respective catalogue finishes.
Important – Escutcheons not includedThe JM11 RSB/0 configuration consists of a pair of Zero Evolution door levers without lock escutcheons. Check door preparation and mounting compatibility before ordering. Contact Matteoda customer service for coordinated accessories and estimated lead times.
