The modern hybrid can fill a lot of different roles. For some golfers, it replaces a long iron and needs to launch easily enough to hold a green. For others, it’s closer to a compact fairway wood, producing plenty of speed from the tee or fairway. Then there are players who use a hybrid as a controlled option from rough, uneven lies or anywhere else a long iron becomes less appealing.
That variety makes the shaft a particularly important part of the fitting equation. Mitsubishi Chemical America is expanding its latest Diamana generation into hybrids with a new three-profile family built around the familiar Red Board, Blue Board and White Board concepts. The Diamana RB, BB and WB Hybrid shafts give fitters three different combinations of feel, stability and control rather than one universal hybrid profile.
The names will be familiar to anybody who has followed Diamana’s sixth generation in drivers and fairway woods. We’ve covered the line extensively since its release, so naturally we are excited to see how Mitsubishi has translated those identities into hybrid-specific designs.
Three Different Ways to Build a Hybrid Shaft
The simplest way to understand the lineup is to look at the bend profiles.
Diamana RB Hybrid is the most active of the three. Mitsubishi lists it as Medium+ in the butt, Medium+ through the middle and Soft+ in the tip. It also carries a low kick point.
Diamana BB Hybrid changes the structure considerably. Its flex profile is Firm in the butt, Soft through the middle and Firm in the tip, with Mitsubishi listing a mid/high kick point. That combination should be especially interesting for golfers who like to feel some load through the center of the shaft while still wanting more support at either end.
Diamana WB Hybrid sits at the other end of the family. Its profile is Medium in the butt with Firm mid and tip sections, and Mitsubishi lists a high kick point. The only available specification is a WB 103 in X flex, which tells us quite a bit about the player this one is intended to fit. Mitsubishi describes WB Hybrid as the option for golfers looking for maximum stability, low torque and control.
Diamana RB Hybrid
The RB side of the family offers the lightest and most accessible options.
Diamana RB 63 Hybrid is available in R2 and R flexes at 62 and 65 grams, while RB 73 Hybrid comes in R and S at 74 and 79 grams. Torque ranges from 4.4 degrees in the 63 R2 down to 3.3 degrees in the 73 S.
The softer tip makes this the profile most likely to appeal to golfers looking for a little more help getting a hybrid into the air or who simply prefer to feel more activity through impact.
We received the RB 73R in R flex and installed it in a 21-degree hybrid for some early range testing.
The shafts are immaculately finished. The matte black background is paired with bright, bold Diamana branding and the trademark flower pattern used throughout the sixth-generation family. In person, the graphics have plenty of presence without looking overly busy, and the overall finish is exactly what we expect from a premium Diamana shaft.
Build quality was equally impressive. Both .370 parallel-tip shafts installed without any surprises, and the finished clubs balanced about where we expected. The RB build came out at D0 swing weight, while the heavier BB build finished at D2.
On the range, RB 73R felt stable in the hands while still making the softer, more active tip section easy to sense. It is a familiar tip-soft sensation rather than something exaggerated or loose. That didn’t necessarily translate to noticeably higher flight for us. The 21-degree hybrid produced a mid, penetrating trajectory similar to what we normally see from that type of club, with enough height to remain useful into a green.
That is worth noting because Mitsubishi is not simply presenting the three profiles as high-, mid- and low-launch options. The bend profiles are increasingly part of a fitting conversation around delivery, center contact and start line. Our most noticeable early impression with RB was how comfortably we could release the club aggressively without feeling like the active tip was going to send the ball hard left. It is still too early to draw conclusions about strike pattern or dispersion, but golfers who prefer a more active tip feel should recognize the Red Board personality immediately.
Diamana BB Hybrid
BB offers the broadest range in the new hybrid family. The 83-gram version is available in R, S and X, while BB 93 comes in S and X. Actual weights range from 83 grams to 98 grams. Torque begins at 3.0 degrees in BB 83 R and drops to 2.2 in BB 83 X, while both BB 93 versions are listed at 2.7 degrees.
The firm butt and tip bookend a softer middle section. In theory, that gives the player a defined load point while retaining stability closer to the hands and clubhead.
BB 83R made an immediate impression for a different reason: it is exceptionally smooth. The softer middle section is easy to feel loading during the swing, but the shaft never feels loose.
The additional weight was noticeable as well. BB replaced a shaft in the 70-gram range, so the 83-gram build added some welcome heft to the 26-degree hybrid. In limited range testing, that combination produced a high, very usable flight that looked well suited to a longer approach club.
Start line was also quite neutral in this early session. We have a tendency to lose this particular hybrid to the right, and that miss was not showing up. There is not enough testing behind that observation to make a performance claim, but the first impression was extremely positive. If we were starting a fitting within this family without knowing much about a golfer’s preferences, BB would be the first profile we tried.
Diamana WB Hybrid
WB is the simplest part of the lineup because there’s only one option. Diamana WB 103 Hybrid comes in X flex at 109 grams, with 2.5 degrees of torque and a high kick point.
That specification leaves little ambiguity. This is the heavy, low-torque option for stronger players who want the hybrid head to feel extremely stable throughout the swing.
It also mirrors the general character of the sixth-generation Diamana WB wood shaft, which Mitsubishi positions as its low-launch, low-spin White Board profile. The wood version uses high-modulus fibers and tip-section construction aimed at driving torque down while retaining the feel expected from Diamana.
For golfers using heavier hybrid heads or looking to create something closer to a driving-iron replacement, WB 103 could be an especially interesting fit.
Why Three Diamana Hybrid Profiles Make Sense
Hybrid fitting can be tricky because the category covers such a broad range of golfers and club roles.
A 5-hybrid replacing a high-lofted long iron may need to launch easily and land softly. A 2- or 3-hybrid in the hands of a faster player may need to behave more like a controlled tee club. The same golfer may even want very different shaft characteristics depending on which hybrid is being built.
That’s where this three-profile system starts to become really useful.
RB provides the most tip activity and the lightest options. BB adds more support at the tip while retaining a softer middle section. WB moves into a much heavier, lower-torque build. Mitsubishi is giving fitters three genuinely different bend profiles to work with.
Our Take
The most appealing part of the Diamana Hybrid family is how clearly the three profiles separate from one another. RB, BB and WB are not just cosmetic variations. Their bend profiles, weights and torque values move in noticeably different directions, giving fitters room to account for both the golfer and the role a hybrid is expected to play.
RB 73 and BB 83 should make for a particularly useful comparison because they sit close enough in the lineup to be realistic alternatives while approaching feel and tip stability quite differently. With both now built and through some limited range testing, the differences in feel are already easy to pick up, even though the two shafts are installed in different lofted heads.
The two profiles also feel quite different from one another. BB was the clear feel winner for us, loading more easily and producing an exceptionally smooth, stable sensation. RB still has the characteristic smoothness we associate with Diamana, but gives the golfer more activity in the tip section.
Because the shafts are installed in different heads and lofts, we aren’t going to use this early testing to make direct comparisons about launch, trajectory or dispersion. What does carry over clearly is the identity of each profile.
Golfers familiar with the sixth-generation Red Board and Blue Board wood shafts should recognize those same general personalities in hybrid form. Both feel distinct in ways that make sense within the larger Diamana family, while at the same time retaining the smoothness and premium construction expected from the line.
Diamana Hybrid Specs, Price and Availability
Models: RB 63, RB 73, BB 83, BB 93 and WB 103
Length: 42 inches raw
Tip: .370-inch parallel
Price: $200
Availability: September 1, 2026
More information will be available at mitsubishigolf.com.
