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Guyker 4 String Headless Bass Bridge (and headpiece) report!

Those of you that use headless systems know it can get kinda nuts. You have cheap pot-metal Steinberger knockoffs (lookin at you, Overlord of Music) some mid-market options with different options like string through, backloaded Nova that are light weight and feel nice, but might be kind of hard to dial in for height and intonation...

Then you have the Hipshots, ABMs, and boutique sets.

So inherently you have a lot of challenges cramming all the functionality of a conventional bridge *plus* tuning into a headless system and different companies try to address this different ways... One problem being that they end up standing "taller" so you can't get your action low enough without having to cut an indent in the body.

I am looking to do a build later this summer and I *really* did not want a "tall" system to deal with, and it is planned to be a travel bass that can be broken down/set up quickly and repeatedly so I needed "top-loading" tuners. I didn't know of any such systems out there that didn't cost an arm and a leg *except* the <shiver> Overlord of Music (OoM) bridge, but that has free moving intonation blocks like a Ric so that's a no-go.

Then someone turned me on to these:
upload_2024-6-22_13-47-58.png


Not overly expensive, top loading, not "tall", and has what looks like fairly conventional setup mechanisms for string height and intonation! Looks like a winner!
NOTE: Amazon in the US had them even cheaper than the website so check there if you are interested!!!

So it came today (via Amazon) so here is my review thus far:

1) packaging - Excellent! It was practically sealed on the outside and well packed/protected on the inside
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It was safe from the elements in it's journey from China.

2) Weight (bridge only)
20240622_124946.jpg


Compared to my (shiver) Overlord of Music... notice the saddle blocks are completely free floating, imagine the headaches in travel and losing one!!!
20240622_124937.jpg


So 80g lighter! Still "solid" if you are not fond of super-light tuning systems. My only other system, a Nova is mounted ATM so I could not weigh it but it's definitely lighter than the Guyker.

3) Component heights - If you are just looking at the frames, it is comparable to the OoM bridge, but when you look at the actual saddle options, it's *MUCH* better... Also some shots next to my mounted Nova tuners:
20240622_125351.jpg


The Guykers are not even bottomed out and you can see how much lower the saddles sit!

Here's with the OoM:
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20240622_125303.jpg


4) Things to note:

It does *not* come with thrust bearings, but plastic washers... Not terrible but FYI. I had some laying around so I threw them on, no problem, there is plenty of travel to accommodate them:
20240622_131212.jpg


I'll finish with some more general pics, but note that the knobs sit low, which means when planning to use them, there does need to be clearance below them or they'll scrape the surface of your bass at best and be hard to turn at worst. The mounting holes are a little more forward than the halfway point of the frame, so you can easily plan on have the knobs hang out, away from the body, but you really need to be aware of this. To me this is an acceptable design to keep the whole thing low profile to the point that it could *almost* serve as a drop in replacement for a conventional bridge.

One other thought is I can't seem to get a "string claw" out of the frame... no biggie, unless I need to replace it (I had a Steinberger claw break on me once, so it can happen)

Anyway, more pics:

Top down view, really looks like normal-ish saddles with even a little spacing control (haven't tried it):
20240622_141611.jpg




Here you can really see the knurled knobs hanging lower than the frame:
20240622_131816.jpg



Here again you can see the knobs go lower, but also you can see the channels for adjusting intonation much like normal bridges...

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Underside shots, you can see mounting holes and the string claws...
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Subbed!

A few comments:
  • The “free floating” saddles on the OoM are supposed to be locked down with the set screw on the side, like the original Steinberger design and the sister design used by Spector. Of course, this is completely academic, as the OoM is still utter crap, and not to be used.
  • The Guyker looks like a copy of the Hipshot design. I am generally against IP theft, but Hipshot’s price is unpalatable for me, so I might pick up a Guyker instead.
  • I was not expecting the screw to be permanently attached to the saddle instead of the knob. Will this cause any issues?
  • Interested in your impressions with that headpiece too. A pair of set screws per string is unique as far as I know, and should offer additional peace of mind.
 
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I still need to put it through it's paces, but it looks *very* promising!
Subbed!

A few comments:
  • The “free floating” saddles on the OoM are supposed to be locked down with the set screw on the side, like the original Steinberger design and the sister design used by Spector. Of course, this is completely academic, as the OoM is still utter crap, and not to be used.
  • The Guyker looks like a copy of the Hipshot design. I am generally against IP theft, but Hipshot’s price is unpalatable for me, so I might pick up a Guyker instead.
  • I was not expecting the screw to be permanently attached to the saddle instead of the knob. Will this cause any issues?
  • Interested in your impressions with that headpiece too. A pair of set screws per string is unique as far as I know, and should offer additional peace of mind.

I know about the set screw for the OoM saddles and if the bass is jostling around in travel with no string/string tension to hold those down and in place... I don't think it's a great design.

Yeah when I could get the Guyker on Amazon for less than $80 instead of Hipshot's offering for $460 AND THAT'S JUST THE BRIDGE...

I get the IP theft argument, however, a lot of this exposes the gouging that certain companies have done for decades. 7ender now has "starter" bass kits to compete with the Glarrys and Harley Bentons that have cropped up to fill the budget bass niche... Why not before? Most likely because they felt they could get customers to cough up more dough for the assurance of quality. Now people can see that so many of these less expensive options may sacrifice *some* quality but still delivers what customers want for a fraction of the price. I'm sure it cuts into their bottom line, but most likely due to their bloat from feeding on customers over the years.

IP protection is good, but not at the expense of innovation.
 
Interested in your impressions with that headpiece too. A pair of set screws per string is unique as far as I know, and should offer additional peace of mind.

I'm not planning on using it as this will be another 27" shorty. The difference is that it will be using a 7 string baritone neck instead of a 6er... it more closely resembles a 4 string bass' width profile as my first attempt has the E/G strings VERY close to the edges... I have some individual headpieces I'm going to use so that I can position them accurately.
 
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this is completely academic, as the OoM is still utter crap, and not to be used.
Really ?

I found the Overlord to be an absolute breeze to install and just as easy to set up. Build was over 3 years back and the OoM functions just fine.

DSC_0923.JPG

and be hard to turn at worst.
You don't turn the knobs by using your fingers. The knob is a hex nut, butt end accepts a hex key; think it's M6.
 
20240622_131816.jpg
You don't turn the knobs by using your fingers. The knob is a hex nut, butt end accepts a hex key; think it's M6.

That was referring to the Guyker so there are the large knurled knobs. What I was trying to say was if you mount the entire thing over the body, knobs and all, without some sort of riser, the knobs will basically be pushed up against the body and be difficult, if impossible to move as they hang lower than the rest of the frame.

I was in a rush and may not have explained that as well as I wanted, but look at the pics, you can see the bottom of the frame is not the lowest point of the entire assembly.

Does that make sense?

Pic to explain what 1000 words can't:
 
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What I was trying to say was if you mount the entire thing over the body, knobs and all, without some sort of riser, the knobs will basically be pushed up against the body and be difficult, if impossible to move as they hang lower than the rest of the frame.
You mount these either with the tuning knobs over-hanging the body or with a rebate cut below to allow clearance.

Knob rebate.jpg


If your design calls for the bridge to be mounted further inland then, there's no way to sugar coat this, you've bought the wrong style of bridge. The heavier and more expensive ALP bridge would be better suited.

ALP bridge.jpg


If you use a bridge shim then it'll have the knock-on effect of raising the minimum action. That could mean a shallow neck pocket or a shim if it's already cut. An avoidable situation with better planning .
 
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I am starting to look at mounting this and while it's not a deal breaker, be aware:

The intonation screws are longer on the E/A strings than the D/G strings on the one I was shipped.

My experience is that I have to back up the heavier strings more so they should be technically the shorter ones (if any are going to be short).

There is no exit hole on the front of these saddles like on some other bridges so you can keep backing it up and the screw just pokes out the front. Without that option, planning ahead is a bit more important.

So if you get one, check the screw lengths, you may be swapping them (unless you are left handed).
 
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Just checking in to see if you ended up installing that bridge on anything! I’ve been super interested in potentially doing a headless conversion on a vintage style P bass or Rickenbacker and these bridges seem like a great deal for the money.
 
Just checking in to see if you ended up installing that bridge on anything! I’ve been super interested in potentially doing a headless conversion on a vintage style P bass or Rickenbacker and these bridges seem like a great deal for the money.

Not yet... Life has stalled the build. Nothing stopping my usage of the bridge save my own schedule/motivation.
 
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