At first glance, the Spyderco RockJumper appears to be nothing more than a lightweight Wharncliffe-bladed folder sized to split the difference between Spyderco's best-selling Delica 4 and Endura 4. If you dig a little deeper, however, you'll realize that the minor nuances of its design reflect a much deeper logic and extreme attention to detail—the kind that only comes from the mind of its designer, Spyderco founder Sal Glesser.
The basic features of the RockJumper are consistent with many of Spyderco's Japanese-made lightweight folders: a full-flat-ground VG10 stainless steel blade, a fully accessible Trademark Round Hole, a choice of PlainEdge or SpyderEdge configuration, skeletonized stainless steel liners, a sturdy lockback mechanism, an injection-molded fiberglass-reinforced-nylon (FRN) handle, a high-traction Bi-Directional Texture pattern, and a four-position pocket clip. As "standard" as all of that may sound, the real magic of this design is in the way all those proven features are expressed.
One of the primary design goals of the RockJumper was to pack as much cutting edge as possible into its pocket-friendly size, while still utilizing a mid-lockback mechanism. Extended cutting edges and minimal ricassos (the flat, unbeveled section of the blade near the juncture of the handle) are easy to achieve with a LinerLock, Compression Lock, or other mechanisms that are not located in the plane of the blade; however, with lockbacks, they are challenging. Sal solved this problem by using a "handle-forward" design philosophy that extends the lower portion of the handle toward the heel of the edge. This brilliant solution allows the cutting edge to extend nearly the full length of the blade and positions the user's hand farther forward for optimal control and leverage. Functionally, it provides the same ability to "choke up" on your grip that a forefinger choil does, but without sacrificing any usable edge length. By minimizing the dead space between the front of the handle and the heel of the edge, the RockJumper's design also greatly reduces the possibility of snagging—especially when cutting ropes or webbing in high-stress situations.
| Condition | New in Box |
|---|---|
| Finish Per Color | Black |
| Manufacturer | Spyderco |
| Manufacturer Part Number | C254SBK |
| Model | RockJumper |
| Type | Folding Knives |
| UPC | 716104014545 |
