So, today I acquired one of Spyderco's "starter" models- the Tenacious - in a half-serrated blade. When I got it home and placed it in my collection, I realized how similar it is to another knife I have - the Byrd Cara Cara G10.
These knives are both designed by Spyderco, both use identical steels and G10 handles, and are both tough and well built knives for an attractive price. Which is better? Well, let's take a look.
Byrd Cara Cara G10:
MSRP: $38.95
Country of Origin: China
Blade Steel: 8Cr13MoV
OAL: 8 5/8"
Blade length: 3 7/8"
Lock type: Back-lock, boye detent
weight: 5.6 oz
Handle material: black textured G10
Clip: right or left hand tip-up only
extras: lanyard hole, strange looking opening hole,
Spyderco Tenacious
MSRP: $49.95
Country of Origin: China
Blade Steel: 8Cr13MoV
OAL: 7 3/4"
Blade Length: 3 3/8"
Lock type: locking liner
weight: 4.0oz
handle material: black textured G10
clip: 4-way repositionable
extras: thumb ramp in handle, lanyard hole
So, to get down to business:
Blade Steel: Obviously a draw. the 8Cr13Mov is basically Spyderco's chinese answer to AUS-8, and it's not bad. It doesn't stay hair-popping sharp for long, but it's not difficult to return to that nice edge.
Locking Mechanism: the Cara Cara. The lockback here is just rock solid, with great ergos for one-handed opening or closing. The Boye detent is a great idea; makes it easier to close when you want to, and harder to accidentally close when you don't want to. Although to the Tenacious' credit, there is absolutely 0 blade play in any direction - which i find impressive with a cheap liner lock.
Ergonomics: tough, but it'll have to be the Byrd by a margin here. It's got a nice choil that's formed by the forward part of the grip and the back end of the blade which allows you to choke up for more delicate work. Thumb ramp on spine is a bit shallow but nice jimping for grip. The G10 on both of these knives is grippy and feels wonderful. Downside to the Cara Cara: it's much narrower (top to bottom) than the Tenacious. Basically, I'll put it this way: if you're an Endura kinda guy, you'll like the Cara Cara. If you're a Native kinda guy, you'll probably like the Tenacious. I'm an Endura kinda guy.
Fit and finish: the Byrd has a CLEAR advantage here. I'm not sure why, but the G10 mates to the liners much cleaner, it feels tighter and more expensive. Considering it isn't, that's weird. The Tenacious doesn't feel CHEAP... just cheaper than the Cara Cara.
Usability: Tenacious. Honestly, for EDC purposes I find the blade on the Cara Cara to be a bit large for the delicate things you end up doing. This is not a knife you'd really feel comfortable, say, taking a tag off a girlfriend's collar with. Also, the full-flat grind of the Tenacious makes it more of a slicer in my eyes than the Cara Cara, although the blade isn't nearly as thick at the spine so I wouldn't pry with it. But then again - DON'T PRY WITH YOUR KNIFE!
Price: Cara Cara. I paid 38 for my Tenacious and 27 for my Cara Cara. Honestly, the Cara Cara is the better deal.
Other notes: I like how the Cara Cara's clip setup is done. I think tip up left and right is a good way to do it - that way you're not leaving out the lefties! If you're looking for a "flickable" knife, i'd go for the Tenacious - I tend to find it more difficult to flick a backlock open compared to a liner.
Overall: Well, ok. Clearly the Byrd is the "better" knife. However, it's a bit big 'n scary for everyday carry, and the blade geometry of the Spyderco is probably more useful on a day-to-day basis. Which would I get? Well, both, honestly.
Here are some pictures for size comparison:
These knives are both designed by Spyderco, both use identical steels and G10 handles, and are both tough and well built knives for an attractive price. Which is better? Well, let's take a look.
Byrd Cara Cara G10:

MSRP: $38.95
Country of Origin: China
Blade Steel: 8Cr13MoV
OAL: 8 5/8"
Blade length: 3 7/8"
Lock type: Back-lock, boye detent
weight: 5.6 oz
Handle material: black textured G10
Clip: right or left hand tip-up only
extras: lanyard hole, strange looking opening hole,
Spyderco Tenacious

MSRP: $49.95
Country of Origin: China
Blade Steel: 8Cr13MoV
OAL: 7 3/4"
Blade Length: 3 3/8"
Lock type: locking liner
weight: 4.0oz
handle material: black textured G10
clip: 4-way repositionable
extras: thumb ramp in handle, lanyard hole
So, to get down to business:
Blade Steel: Obviously a draw. the 8Cr13Mov is basically Spyderco's chinese answer to AUS-8, and it's not bad. It doesn't stay hair-popping sharp for long, but it's not difficult to return to that nice edge.
Locking Mechanism: the Cara Cara. The lockback here is just rock solid, with great ergos for one-handed opening or closing. The Boye detent is a great idea; makes it easier to close when you want to, and harder to accidentally close when you don't want to. Although to the Tenacious' credit, there is absolutely 0 blade play in any direction - which i find impressive with a cheap liner lock.
Ergonomics: tough, but it'll have to be the Byrd by a margin here. It's got a nice choil that's formed by the forward part of the grip and the back end of the blade which allows you to choke up for more delicate work. Thumb ramp on spine is a bit shallow but nice jimping for grip. The G10 on both of these knives is grippy and feels wonderful. Downside to the Cara Cara: it's much narrower (top to bottom) than the Tenacious. Basically, I'll put it this way: if you're an Endura kinda guy, you'll like the Cara Cara. If you're a Native kinda guy, you'll probably like the Tenacious. I'm an Endura kinda guy.
Fit and finish: the Byrd has a CLEAR advantage here. I'm not sure why, but the G10 mates to the liners much cleaner, it feels tighter and more expensive. Considering it isn't, that's weird. The Tenacious doesn't feel CHEAP... just cheaper than the Cara Cara.
Usability: Tenacious. Honestly, for EDC purposes I find the blade on the Cara Cara to be a bit large for the delicate things you end up doing. This is not a knife you'd really feel comfortable, say, taking a tag off a girlfriend's collar with. Also, the full-flat grind of the Tenacious makes it more of a slicer in my eyes than the Cara Cara, although the blade isn't nearly as thick at the spine so I wouldn't pry with it. But then again - DON'T PRY WITH YOUR KNIFE!
Price: Cara Cara. I paid 38 for my Tenacious and 27 for my Cara Cara. Honestly, the Cara Cara is the better deal.
Other notes: I like how the Cara Cara's clip setup is done. I think tip up left and right is a good way to do it - that way you're not leaving out the lefties! If you're looking for a "flickable" knife, i'd go for the Tenacious - I tend to find it more difficult to flick a backlock open compared to a liner.
Overall: Well, ok. Clearly the Byrd is the "better" knife. However, it's a bit big 'n scary for everyday carry, and the blade geometry of the Spyderco is probably more useful on a day-to-day basis. Which would I get? Well, both, honestly.
Here are some pictures for size comparison:

