Noodler's Ahab Flex Fountain Pen - Medieval Lapis

Product Code N15027
In Stock, Usually Ships in 1 to 2 Business Days
The Ahab flex pen was introduced in late 2011 and is currently Noodler's most popular fountain pen. It features a steel flexible #6 nib and a slide piston mechanism.
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Noodler's Ahab Flex Fountain Pen - Medieval Lapis

The Ahab flex pen was introduced in late 2011 and is currently Noodler's 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 vegetal resin body of this pen may show particles or striations within the material. This is most noticeable in demonstrators and bright colors.

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 and heat set 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
14mm (0.6in)
Diameter - Cap (without clip)
15mm (0.6in)
Diameter - Cap (with clip)
20mm (0.8in)
Diameter - Grip
9.9mm (0.4in)
Length - Body
128mm (5in)
Length - Cap
60mm (2.4in)
Length - Nib
20mm (0.8in)
Length - Overall (Closed)
139mm (5.5in)
Length - Overall (Posted)
170mm (6.7in)
Weight - Body
12g (0.4oz)
Weight - Cap
6g (0.2oz)
Weight - Overall
18g (0.6oz)
Max Ink Capacity - Eyedropper
Max Ink Capacity - Piston/Vac
Noodler's Ahab Flex Fountain Pen - Medieval Lapis is rated 4.2317 out of 5 by 82.
Rated 5 out of 5 by from A nice drawing pen I had been looking around for a pen I could get variable line widths from for drawing, but I wasn't ready to jump into the dip pen world yet. I decided to try the Ahab. I cleaned the pen nib, converter, and feed thoroughly with a mild solution of Dawn dish detergent and the tiny brush that comes in jewelry cleaning kits. I rinsed everything thoroughly, dried it, and filled the converter with Noodler's Black. I have not had to play around with nib placement and have not had the ink feed issues others report. So far, so good! I am not a fountain pen expert, but I have been satisfied with the performance of this pen.
Date published: 2014-10-20
Rated 5 out of 5 by from Great pen at a great price I've had this for a few days, and can't put it down. It's so smooth, it's hard to believe it's a stainless steel nib. Just light pressure gives a crisp fine line, and there is a nice range of flex with varying pressures. The Ahab answers the three problems I had with Nathan's earlier flex piston pen: 1. that pen was too small to be comfortable, the Ahab compares in size to a Pelikan 800, and balances beautifully; 2. the flex pen had a small reservoir and dried out quickly, but the Ahab's is huge; 3. the flex pen tended to be a little scratchy, but the Ahab nib just glides. Of course, the colors are gorgeous, and I did have trouble choosing between Medieval Lapis and some of the others.
Date published: 2014-10-20
Rated 2 out of 5 by from Disappointed I'm sorry to have to say that, while the pen itself is fine, the nib is disappointing. It provides a plain, fairly fine line, but has virtually no flex at all. I'm used to flexing nibs, especially those of vintage pens, but pressing even quite hard produces no noticeable opening of the tines. I shall keep working on it, but at present I have to say that it does not merit the title 'Flex'. Bearing in mind that we have to pay for international postage and Customs duties, together almost doubling the US cost, this is not a pen I would recommend for anyone on the European side of the Atlantic.
Date published: 2014-10-20
Rated 1 out of 5 by from writing or lack of I bought the small flex pens and loved them and was excited to try the ahab. I prepared by cleaning thanks to brians video and filled and used it for the first time. I had mixed results and kept adjusting the feed and nib to find a sweet spot of flow but unlike the small ones couldn't find it on this ahab so after a lot of frustration I cleaned it and put it aside. Ipicked it back up 3 weeks later to find out the pen won't even fill so needless to say I'm very dissapointed in the ahab maybe it just this pen but do to a limited budget I will not expand my collection of ahabs finding that this experiment failed.
Date published: 2014-10-20
Rated 5 out of 5 by from Feels better than I expected This pen fits in my hand well, even though it looks large. The finish is smooth, but gives a good grip, and I don't feel at all like my fingers will slip off the front over that smooth edge. The color is beautiful and rich, better than in the picture. I swapped over the modified nib and feed from my Konrad (ease my flex mod) and as expected, it writes beautifully and is a pleasure to use. Also, this thing holds a lot of ink! The cap posts well, almost too well, if I push too hard I'm afraid it will get stuck! The resin these pens are made of is SOFT. I'm buying this one because all the threads that held my old Konrad together got stripped out, and the cap won't stay on. Be gentle.
Date published: 2015-09-16
Rated 3 out of 5 by from Flow/Flex Issues Not as much flex as I expected, even after reviews that said so.. I really had to push hard to get the good variation. Also there were a lot of issues with keeping the pen from railroading, indicating flow issues. I've been trying to mess with the nib to get it right, but it hasn't been working. To stop it from railroading right now I have to basically push down the piston and saturate the feed every line or so, which isn't the greatest. Anyways, it's a good starter, but I do believe this is another one of the cases where yo uget what you pay for.
Date published: 2014-10-20
Rated 4 out of 5 by from ink flow on pen I am still having trouble getting consistent ink flow from the pen. When it writes, it writes beautifully, but often it just quits. Then I shake it; then ink drops fall on the paper or the table. Then I curse and swear and try to get things flowing again by delicately feeding a bit of ink into the nib by a miniscule push on the plunger of the ink reservoir. Usually another drop of ink hits the table. Then I curse and swear, and then, finally, the pen decides to write. I keep hoping tht this is just a breaking-in problem, for I really like the pen otherwise, but obviously, it's a big "otherwise."
Date published: 2014-10-20
Rated 1 out of 5 by from i guess it's $20 for a reason First of all, I have to say that the customer service at noodler's is outstanding. Was sent two replacement feeds at no cost to me, not even shipping. However, the pen refuses to write. I've opened two additional vents, the channel, cleaned it twice and the ink just will not flow. Multiple types of ink / paper used as well, no go... It's a shame because I really like the characteristics of the flex nib when I can shake some ink down into it or dip it, but have wasted too much time messing with it. Think I'll give an italic nib lamy a try. Maybe I've been spoiled having used pelikan's 800 series as a daily writer for years, so I expect a pen to always write and to write well, which my ahab doesn't.
Date published: 2014-10-20
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