CB Plate OC vs Safety Bar: Which Karve Head Suits Your Shave?
By Karve Shaving Co. | Engineered & Machined Safety Razors Made in Canada | Published: 2026-10-22
Category: Comparisons
Compare Karve's open comb (OC) and safety bar (SB) CB plates. Learn how aggression levels affect your shave and which plate style matches your beard and skin.
Quick answer
Choose the open comb (OC) plate if you have a coarse or longer beard and want a more efficient shave; pick the safety bar (SB) plate if you have sensitive skin or shave daily and prefer a milder, more forgiving feel.
How the CB Plate System Works
Karve's Christopher Bradley razor uses interchangeable base plates to change the blade gap and exposure, which directly affects how aggressive the shave feels. The same plate design is available in both open comb (OC) and safety bar (SB) variants, with levels ranging from AA (least aggressive) to G (most aggressive). The underside of each plate is permanently engraved with its level, so you always know which one you're using.
Because the plate style and aggression level work together, your decision involves two variables: the comb type (OC vs SB) and the level (mild vs aggressive). The trade-off is that an aggressive OC plate can be very efficient but also harsh on sensitive skin, while a mild SB plate is gentle but may require more passes on a thick beard.
Open Comb vs Safety Bar: Key Differences
An open comb plate has a series of teeth that allow longer stubble and lather to pass through, reducing clogging and making it ideal for a few days' growth. The exposed blade edge also tends to cut more aggressively at the same level compared to a safety bar.
A safety bar (solid bar) plate has a continuous bar that distributes pressure more evenly and provides a smoother glide. It is generally more forgiving and less likely to cause irritation, making it a popular choice for daily shavers.
Trade-offs at a glance
- Open Comb (OC) – Efficiency over comfort: Best for coarse or longer beards. The teeth allow thicker stubble to pass through, reducing clogging. At the same level, an OC plate feels more aggressive than an SB plate. Start with a lower level (AA–C) if you are new to open combs.
- Safety Bar (SB) – Comfort over raw efficiency: Best for sensitive skin or daily shaving. The solid bar distributes pressure evenly and reduces the chance of nicks. You can still choose a higher level (D–G) for more efficiency, but the feel remains smoother than an equivalent OC plate. If you already use a mild SB plate and want a closer shave without changing your technique, try the same level in OC before moving to a higher level.
- Aggression level matters more than comb type: A level D SB plate may feel similar to a level C OC plate. The engraved level on the underside of each plate helps you compare directly. Use the level chart to find your sweet spot. Write down your current plate level and comb type so you can make an informed swap.
Product facts
- CB Plate OC - Copper: The Christopher Bradley razor employs interchangeable plates to adjust its efficiency. These are the same solid bar (OC) plates that come with the Christopher Bradley razor. The levels range from AA (the least aggressive) to G (the most aggressive). You can fine-tune your shave by choosing both the comb style and the aggression level, so one razor can adapt to different growth patterns and skin sensitivities.
CB Plate OC - Copper
Which plate should you choose?
Best for
- Coarse or thick beards that need more cutting power
- Shaving every 2–3 days or less frequently
- Experienced wet shavers who want to dial in efficiency
Not for
- Daily shavers with sensitive or easily irritated skin
- Beginners who prefer a forgiving, low-risk shave
