Personally, I like Kahler® tremolos. I had a guitar with an original “patent pending” Kahler tremolo back in the day. It was solid brass. I also like Floyd Rose tremolos, so I am not biased towards either. They are similar yet different. I like both. Each have their strengths and weaknesses.
Much has been said about the comparisons of Floyd Rose and Kahler tremolos and I am not going to get into a repeat of that here. That’s something for you and Google to undertake together if you want to go there.
For left handed guitarists there is one very solid reason to like Kahler products: KAHLER TREMOLOS ALL FIT LEFT HANDED GUITARS! Floyd Rose options for lefties are very limited. All Kahlers are made for right or left hand orientation.
The basic difference between a Floyd Rose tremolo and a Kahler tremolo is that Floyd Rose is a FULCRUM based mechanism and Kahler is a CAM based mechanism.
The fulcrum is like a “see saw.” The whole tremolo moves on a pivot. The two posts at each end of the tremolo hold it in place. When you push the tremolo arm down the strings loosen right off the saddles and become slack and floppy. The strings return to position and original tension when released. When you pull up on it the strings tighten. A locking nut at the neck of the guitar stops the strings from loosening or tightening beyond the neck.
The cam system is essentially a rolling pin that “winds” and “unwinds” the strings when you push or pull on the arm. The tremolo does not move, only the cam mechanism. The saddles have rollers, so the strings just roll back and forward on the rollers while the saddle remains static. As with Floyd Rose, Kahler too uses a locking nut at the neck to lock the strings in place at the other end of the guitar.
The very best thing about Kahler tremolos as they can be fitted to 6, 7, 8, 9 or 10 string left handed guitars. There are tremolos for left handed basses too. They are 100% made in the USA.
Kahler offer flat mount, stud mount, fixed bridge, and multi scale bridges.
Options for nearly all tremolos are steel cam with steel saddles, aluminium cam with brass saddles, brass cam with steel saddles, and brass cam with brass saddles.
If you are considering a Kahler tremolo for your custom left handed build then the following is a rough guide on pricing for Kahler tremolos. Prices do not include shipping/postage costs.
More information at https://www.kahlerusa.com/
Kahler Flat Mount Tremolos 6,7,8,9 string