Serin Boro RBA - Early Bird
The Serin RBA by Early Bird is a single-coil rebuildable bridge featuring adjustable airflow from DL to MTL through interchangeable pins.
Its top airflow system helps reduce condensation and leakage risks, while the 510 connection ensures easier and more stable coil installation.
Serin Boro RBA - Early Bird
The revolution of the AIO bridge.
Single coil
The Serin RBA is a rebuildable bridge featuring a single-coil deck with parallel posts, allowing easy installation of various coil types.
It incorporates a 510 thread beneath the deck, ensuring stable coil building during installation. The kit includes a 510 drip tip adapter as well as a hybrid drip tip for direct use.


An innovative airflow system
The airflow design is one of the key features of the Serin RBA. Early Bird integrates a top airflow system combined with a dual-chamber chimney.
Air is drawn from the top of the bridge and redirected beneath the coil. This design helps limit condensation around the 510 pin and reduces the risk of leaks.
Adjustable airflow
The Serin RBA offers fully adjustable airflow through interchangeable pins. Five pins are included, with diameters of 1.5 mm, 2.0 mm, 2.5 mm, 3.0 mm, and 3.5 mm, allowing precise draw adjustment.
An optional MTL kit is available separately, featuring 0.8 mm, 1.0 mm, and 1.2 mm pins for a more restrictive draw.

Contents of the packaging
- 1 Serin RBA
- 1 Pin 1.5mm
- 1 Pin 2.0mm
- 1 Pin 2.5mm
- 1 Pin 3.0mm
- 1 Pin 3.5mm
- 1 510 Adaptor
- 1 Proprietary drip tip
- 1 Bag of spare parts
- 1 User Manual
In addition
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Customer reviews
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Gabriel B.
Published Mar 12, 2026 at 09:40 pm (Order date: Mar 09, 2026)5I really like that on




















