Flea

In this Rig Rundown video of Flea's bass rig, his tech Tracy Robar talks about the bass guitar Flea uses most often, the Modulus Flea bass. Starting at 0:25 he says:

“This is Flea’s main bass, which we play pretty much on 99% of all songs. He likes to be used to one bass, most of the time he warms up with it in the dressing room every night. It’s a Modulus, with production finish on it, that Flea added some ‘mod podge’ touches to a long time ago and has since deteriorated… it's a great player sounds awesome… it’s got a Lane Poor pickup which they don't make anymore unfortunately and we have very few of them left. And we’ve got the Aguilar preamp… and Badass Bridge. He likes to keep the knobs taped up, don’t touch ‘em, get that sound. He only touches the volume knob. [He keeps them set] bass almost all the way on, treble rolled off quite a bit, just to where it starts biting. Graphite neck on it, very stable, very bright sounding. I can get extremely low action with that which is how Flea likes it. I change [the strings] every day. We use GHS boomers and Flea has a signature set that they package up, which is basically their basic standard gauge 105 - 45.”

At 2:28 into this video of Flea's rig rundown, his tech talks about a few of Flea's basses which he uses in addition to his primary Modulus one:

“This Modulus bass has the custom Aboriginal finish on it, it's beautiful. He plays it on By The Way, we tune it to drop D. Pretty much the same [as his main bass], this one has a Seymour Duncan pickup in it, but the same preamp.”

Flea's own line of bass guitars. Inspired by the look of Modulus basses, and made to be affordable and approachable by beginners. Two models were available, one with a 34" neck and another with a 30" neck. They were available in four color schemes: "Sunny Bass"(yellow/orange), "Water Bass" (orange/blue), "Punk Bass" (pink/green) and "The Wild One" (white/black). These basses were manufactured in China.

Flea used this on "Funky Monks", "Under the Bridge" and "The Righteous and the Wicked" from Blood Sugar Sex Magik. It can be seen in the "Under the Bridge" video.

Flea is shown in this picture with a Precision Sunburst bass.

At 1:59 in this "Rig Rundown" with Premier Guitar is a custom Flea Bass, designed by Damien Hirst with a Spinart Finish. A Lane Poor pickup can also be seen.

At 2:49 in this "Rig Rundown" with Premier Guitar, Tracy Robar (Flea's Tech) shows us his backup Modular. It has the Aboriginal National Flag & Lane Poor pickups.

In this picture we see Flea's custom model Modulus Flea Bass which was nick-named the ‘Punk Bass’ due to its decoration; it was painted red, white and blue and covered in graphics featuring Flea’s favourite punk bands.

At 3:32 in this "Rig Rundown" with Premier Guitar, we're shown another one of Flea's basses. Flea uses this for the song "Funky Monks".

One of the very few shell pink Jazz Basses ever produced by Fender. This is the bass Flea used for the entirety of 'Stadium Arcadium'. Features two stickers, one of which is of D. Boon (singer and guitarist of the Minutemen) which features the words "Punk is whatever we made it to be". (Picture of the bass with two stickers: http://bit.ly/1svY02N)

One of Flea's main basses throughout his entire career. Can be seen in music videos such as "Aeroplane" and "Coffee Shop". It is also the bass Flea used in Chad Smith's instructional video 'Red Hot Rhythm Meth'.

Flea can be seen in this photo with a Modulus Funk Unlimited in Blue Sparkle.

Flea can be seen in this image playing a black Spector NS-2.

Flea can be seen here with another custom Modulus Bass with graphite neck with Fleas name on it.

"you know this guy this artist Damien Hirst? He did this for me yeah it's real butterflies" - Flea at 1:25.

Evident at 1:09 and 2:50

the brand is TEISCO, not TIESCO

https://en.wikipedia.org/wiki/Teisco

cheers

Flea can be seen with a Höfner Violin Bass (right side)

You can see through the video

Flea just started using this bass at the beginning of their new tour. It captures the feel of the jazz bass that he used to record the album with, while still maintaining the live sound he has used for years.

"Introducing the Flea Signature Jazz Bass: Head over to our web site or YouTube channel to see Flea from the @ChiliPeppers talk about his "magic" bass!"

At 1:03 in this Fender video, Flea says "The greatest bass I've ever played is this '61 Fender Jazz Bass. It's just a magic bass"

Flea used a blue model of this bass in studio during the recording of the album "Blood Sugar Sex Magic". He used this bass on every song exept "Funky Monks" and "The Righteous and the Wicked" (he used a 5 strings musicman stingray on these). We can see him with this bass in the docummentary "Funky Monks", in the video for "Suck my Kiss" and in some live shows in 1991 on youtube.

Flea used this bass for the recording of the album "One Hot Minute". He used this bass on every song exept "Aeroplane" and "Pea".

Flea’s current No. 1 is this Fender Custom Shop Jazz bass built by Jason Smith. It has an active Modulus Lane Poor pickup that was out of production, but due to demand from Flea and other bassists, is now available again. The current models on the market are called Legacy Lane Poor. It’s also outfitted with an Aguilar OBP-1 preamp. He keeps his knobs taped at his preferred settings (bass almost full up, treble rolled off) and only uses his volume knob live. It has a graphite neck that allows Robar to set Flea's action very low—4/64" on the bass side down to a 3/64" on the treble side—and Flea uses his signature set of GHS Boomers (.045–.105).

In this picture Flea can be seen playing a Gibson SG Bass. According to that account it was in Amsterdam, November 2016, in the guitar shop "De Plug"

In this Red Hot Chili Peppers music video, Flea is seen playing a Fender Jazz Bass Fretless Jaco Pastorius Tribute Bass

In this Video we can see Flea playing the "Fender Kingman Bass SCE". At 5:22 he asked Josh if he should play acoustic or electric, and descided to play the acoustic at 5:35. The RHCP played the show for the "Silverlake Conservatory of Music" annual benefit gala.