OPUS 88 Replacement #12 Nib Unit - Stainless Steel
Swap your nib. Change your writing.
This is the replacement nib unit for the Opus 88 pen models that are fitted with a #12 JoWo nib unit (size #6 nib), including Omar, Demonstrator, Jazz and Shell. It will also fit Harmony, however most Harmony nibs are rose-gold coloured.
It is not compatible with Opus 88 Flora, Bela, Flow, Picnic, Fantasia or Mini Pocket.
Who this is for
- You love your Opus 88, but want a different line width
- Your nib is damaged, scratchy, or inconsistent
- You want to experiment with custom grinding nibs
- You're a nib explorer and want to try this JoWo nib on a different pen
What's included
- Complete unit with stainless steel nib, feed, and housing
- Screw-in fit with no tools required
- Uses the JoWo Size #6 nib
- Please note: decorative engraving on nibs may vary to images shown
(older stock has a scroll detail, new stock has a simple line border)
Writing feel
JoWo stainless steel nibs are known to be firm, wet and smooth. They have a generous slit gap and rounded tipping that provides for smooth writing, even with suboptimal pen angle or poor paper quality.
Installation
- Unscrew your current nib unit from the grip section
- Screw in the new unit until finger tight
- Check the feed is exactly square on the nib
- Fill your pen and begin writing
Practical tip
When installing the nib unit, turn the barrel, rather than turning the nib. This helps prevent accidental twisting of the tines as you screw in the unit. When removing the original nib unit, take care not to lose the o-ring that sits at the back of the nib housing.
FAQs
Can I replace just the nib?
Yes, but it requires more care. A full unit swap is faster and a less inky experience.
Will this nib unit fit any pen that takes a JoWo #6 nib?
Not necessarily. Whilst some pens use the same JoWo #6 nib, they may have a different nib unit and threading. Straight swaps work with some Franklin-Christoph and Edison pens. Conklin and Monteverde use the same nib, but in a different housing. For these, you could try harvesting the nib from the Opus 88 unit and inserting it into the nib unit of the recipient pen.
Is this better than tuning my existing nib?
For damaged nibs or changing sizes, yes. For minor scratchiness, tuning may be sufficient.
Is the nib pre-tuned?
It is factory tuned, and usually reliable. You can request a free nib check in the Checkout comments if you prefer we do a quick check.
Which size should I choose?
Fine works well for most users. Medium offers a smoother feel. The stub is best for expressive writing and line variation.
Are the flex nibs true flex?
No, not like gold nib flex. They are stainless steel nibs and require reasonable downward hand pressure to get line variation. Fun for short duration writing sessions.
Fountain pens are modular tools. A simple nib swap can completely change how your pen writes and feels.