Rock Jumper

With its wharncliffe blade, I think this is going to be a real winner for Spyderco. Some have opined that it makes the Delica obsolete. I do not think so as they fit different niches. But, it is a great design. The back lock will insure that the knife will not come open while climbing or other activities like detent dependent knives can do sometimes. The edge going back to the handle means that it will not get caught in the rope if one needs to cut it while hanging. Still, the blade can be safely dropped onto the finger to close the knife lie most other Spydercos because of Sal's genius in design.
 
Hi Doc,

Thanx much for the kind words, I think it's an interesting design solution to take advantage of the back-lock self close and still retain easy one hand close the same as the Endura family of designs. And still bring the edge to the handle for close up work.

We'll be watching reaction to the design closely.

sal
 
It looks like a great replacement for my Delica, which has always been too small in the hand, but why no Boye dent?
 
boing said:
It looks like a great replacement for my Delica, which has always been too small in the hand, but why no Boye dent?
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I think like Sal said, there's a new idea in the lockback design being presented. I believe the Siren is designed in the same light. The lockbar tension is very tight which means it probably needed clearance that the Boye wouldn't allow. Plus the lockbar is also acting as the stop when the knife is closed. So it feels like the lockbar is now designed to perform more than just the function of locking the blade out. It actually kind of locks the blade in. It's hard to describe, but when Sal speaks of "interesting design solutions", he means they have basically redesigned the lockback in a very impressive way.

I'm looking forward to trying the Rockjumper. I carried a small, pinned Rescue for years while climbing. I think the new lockbar design will prove itself in time.
 
I just bought a Delica Wharncliffe SE last night. Be honest, I can't see much of difference between Delica Wharncliffe and Rock Jumper. I did read all available discussion about the new Rock Jumper. From Sal's description, I expect some tuned lock bar, but still can't imagine how it could be substantial diffferent from Delica.

I need to see the review after the knife come out.
 
Hi Roundg,

Probably not a great difference. The blade's a bit longer. The handle is a little longer. The edge comes close to the handle yet still retains the kick in the same position so it can be one hand closed with the same technique as the Delica. It's a design modification that I think some will appreciate. Once it's out in the marketplace for a while, I can study reaction in the Real World. Then I can decide it's value. I also have a leaf blade version in-the-works.

sal
 
Hi, Sal,

Thanks for the kind reply and the information. I really like the way the Spyderco offers more options to the customer.

I am a finger-choil guy. I wish the semi finger-choil on Delica become the same as it on Stretch 2. On the other hand, I can see the point that having a full edge blade on a Wharncliffe as the focus is the cutting power. Among all the locking mechanism, compressor lock is my favorite. But definitely, the back lock has a big advantage of keeping the knife slim. The design of Delica 4 is a real charm.

Cheers,
Robin
 
Sal Glesser said:
Hi Roundg,

Probably not a great difference. The blade's a bit longer. The handle is a little longer. The edge comes close to the handle yet still retains the kick in the same position so it can be one hand closed with the same technique as the Delica. It's a design modification that I think some will appreciate. Once it's out in the marketplace for a while, I can study reaction in the Real World. Then I can decide it's value. I also have a leaf blade version in-the-works.

sal
Click to expand...

I'm very eager to try the Leaf Jumper! The Rock Jumper looks very interesting but I can use a leaf blade more so I'll be waiting... :)
 
This would be a cardboard destroyer in K390! I was somewhat surprised it wasn’t made in SE as well.

I’m not knowledgeable of climbing at all, but for whatever reason in a post that first described the model some people went nuts about the idea of a climbing knife.
 
Ho John,

It will be offered in serrations as well. If it is well received, I' sure you will see a version in K390 as well.

It was not designed primarily as a climbers knife. I wanted to use a standard as a design goal. Light weight, strong, good ergos for control in all situations, edge to the handle so there is no snagging possible.

Knives and climbing are an ongoing argument. In my opinion, you don't go anywhere without the ability to cut. Some climbers will carry a Ladybug or Manbug on a lanyard around their neck. Light weight an good cutting power. The Rock Jumper is just more knife. More control, more cutting power. Better to have it and not need it that to need it and not have it, in my opinion.

sal
 
Hi Boing,

The reason for incorporating the Boye dent was originally because Michael Janich showed me that, while not easily done, it was possible to depress the lock accidentally. Bob Taylor showed me the same thing. David Boye had used the dent on his lock-backs to prevent that possibility. We got permission from David Boye to use the dent and to use his name to give credit. We began using the Boye dent on our lockabacks and have for many years. The dent was always and is controversial. Some like it (indexing, etc.). Some didn't. So we redesigned the lock well with a much smaller well making it impossible to accidentally unlock. I've been putting that into most of my recent lock-back designs. Safety is a big issue with us.

Hope that helps.

sal
 
I'm going to buy one. I need a replacement for my worn out plain edge Rescue.
 
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