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Noodler's Ahab Flex Fountain Pen - Clear Demonstrator
Product Code N15021
In Stock, Usually Ships in 1 to 2 Business Days
The Ahab flex pen was introduced in late 2011 and is currently Noodler's largest and most popular fountain pen. It features a steel flexible #6 nib and a slide piston mechanism.

This clear pen comes with a spare non-flex nib, for a limited time!
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Noodler's Ahab Flex Fountain Pen - Clear Demonstrator

The Ahab flex pen was introduced in late 2011 and is currently Noodler's largest and most popular fountain pen. It features a steel flexible #6 nib and a slide piston mechanism. If you'd like, you can even remove the piston mechanism and use the pen as an eyedropper for a massive 6ml ink capacity. The Ahab is made of a celluloid derivative and is technically biodegradable and formed from a "renewable resource".

The Noodler's flex pens were designed for the hands-on tinkerer - they are made to be taken apart and adjusted. The nib and feed pull right out and can be adjusted for optimal performance. Don't be afraid to get a little ink on your fingers while you learn how to use this pen.

As a simple rule of thumb for writing with a flex pen, just apply slight pressure on your downstrokes, which will spread the tines and increase the line width, achieving that optimal line variation. Make sure to go slowly so that the ink can keep up with your writing. As with any flex pen, it just takes practice!

Due to the residual machining oils used when cutting the feeds for these pens, we highly encourage you to give the pen a good flush before use. We recommend any of the following options: distilled water, water with a touch of dish soap, a pre-packaged pen flush, or a solution of 10% clear ammonia to water. This should resolve most ink flow issues!

Usually Ships in 1 to 2 Business Days
Fountain Pens
Pen Model
Noodler's Ahab
Body Color
Body Material
Cap Type
Compatible inks & refills
Bottled inks
Filling Mechanism
Eyedropper, Piston
Grip Material
Nib Color
Nib Material
Nib Size
Diameter - Body
Diameter - Cap (without clip)
Diameter - Cap (with clip)
Diameter - Grip
Length - Body
Length - Cap
Length - Nib
Length - Overall (Closed)
Length - Overall (Posted)
Weight - Body
Weight - Cap
Weight - Overall
0.200 lbs
1.000 in
1.000 in
1.000 in
Noodler's Ahab Flex Fountain Pen - Clear Demonstrator is rated 4.1894 out of 5 by 264.
Rated 5 out of 5 by from love it! love writing and picked up lettering as a hobby but with this one after setting it up for my writing it is just amazing
Date published: 2015-06-08
Rated 5 out of 5 by from Great after adjustment This pen is just great, if one has the patience to adjust and modify it to one's liking. This pen is definitely not designed to write well out of the box, but to be tinkered with and customized, as Brian points out in the videos. Mine didn't flow well even after thorough cleaning - the previous reviewer has the same case I guess. I had to cut some vents in the feed and adjust it properly, and now I have the exact flow I wanted. As I said, it takes patience, but if you have it, the pen will reward you in the end. I'll be definitely getting more of these! Also, thanks Goulet Pens for express shipping and great service by the way. :)
Date published: 2014-10-20
Rated 5 out of 5 by from As Advertised Using this pen is like driving a mini cooper. It's not the most practical, but it's fun for specific uses and still totally usable for everything else. Don't be afraid, this pen can be your daily driver. The nib and feed are very adjustable and I was frustrated at first that to really clean the pen, you need to remove both, which makes getting them back to that perfect position pretty difficult. The best solution to this is to get a Goulet Bulb Syringe so you can pump enough water through the pen to clean out most of the ink above the nib without dissassembling every time. Overall this pen is totally worth the money, substantially built, and fun to play with.
Date published: 2014-10-20
Rated 5 out of 5 by from Unboxed it, cleaned w/ ammonia, filled with PH... ...and SUCCESS! I had to push the feed in a little further (I put it in too shallow after cleaning), but after that, it wrote PERFECTLY. I used the piston (without breather tube) to run the ammonia through it at first. After cleaning, I removed the piston filler, lubed the threads with silicone grease, then filled it up with 6.0mL of Noodler's Purple Heart. Other than the required feed-adjustment (due to my error, not Noodler's), this pen wrote as well as my Lamy AL-Star (F) did right out of the box! Now I can't wait to get my Creaper Cobalt and King Philip Purple Ahab pens next! Thanks, Nathan and Brian (& Co)!!
Date published: 2014-10-20
Rated 4 out of 5 by from Ahab Flex Nib Clear First, the Goulet Pen Company provided great service and I will continue to use them! As for the pen, I have ordered a total of 6 of the Ahab pens. Two from Goulet and 4 from another seller. While I do love the pens, they are not perfect. The quality is similar between the pens; however, the flow varies a good amount between individual pens. The CLEAR Ahab from Goulet has performed satisfactory and I write daily with it. The ink flow on this pen will allow me to write normally and do some flexed writing but if I wanted to do a lot of flexing of the nib, I will need to open the feed as it will "railroad."
Date published: 2014-10-20
Rated 4 out of 5 by from Ahab Flex NIb Pen I like the larger size of the pen and the greater ink capacity as compared to the regular flex nib noodler's pens. My only issue, and this may be an issue unique to the flex pens, is the problem of them not flowing right away when uncapped. I have had to take a few moments to "prime" them each time so that they write with a good flow of ink. Perhaps the nib needs adjusting so that they flow better. But it seems once they have started writing, the flow is sufficient. It is just the initial flow once the pen is uncapped that seems to be at issue. Regardless of this, I love the "'flexibility" of the pens, and the way they write.
Date published: 2014-10-20
Rated 3 out of 5 by from Great pen for first flex writing! I own two Ahab pens and what I noticed is, that they are slightly diffrent in terms of flexibility of the nib and the flow of ink. While my Demonstrator seems to be a bit wetter, the nib doesn't flex as much as my Turtoise one. The plastic feels a bit oily and low quality but you can't expect more from a 20$ pen. However the pen works fine and is amazing to try out some flex writing. I love how it's made to try out new things, play with it and adjust as you like (see manual of the pen) and since it's a 20$ pen, it's not a big deal if you actually break it. Other than the diffrences in manufacturing I don't have much to complain about this pen.
Date published: 2015-06-24
Rated 1 out of 5 by from Have not been able to get it working.... Everyone talks about this pen and I wanted something with flex so I had to give it a go. Unfortunately, over the week or so that I have had it I have yet to be able to get it to work anywhere close to reliably. When it does work, it works well and I enjoy the flex however the feed simply runs dry every 10 - 15 minutes and the only way I have been able to get it started again is forcing ink into the feed via the plunger. I have cleaned it and disassembled it several times to make adjustments in hopes of signs of life but to no avail. I will continue to try to get it running but I am disappointed.
Date published: 2014-10-20
  • 2015-09-28T11:55CST
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