What Happens When Your Nunchaku Are Bigger Than They Should Be

The first two finished pairs I picked up from Heritage Beam & Board are not sized the way anything I’ve read tells you to size a pair.

White oak, black stain, and walnut — I’ve written about both. What I hadn’t clocked until I actually started training on them regularly is that the oak pair in particular is long and thick enough that it feels built for someone bigger than me. Taller, heavier, longer arms. A giant’s pair, more or less, that I happen to be borrowing.

I kept training on it anyway. This is what happened.

The size rule nobody follows

Ask around and the sizing advice for nunchaku is pretty consistent: each stick should be roughly the length of your forearm, elbow to somewhere around your fist. Long enough to generate real arc, short enough that you can still see the whole swing coming and correct it before it arrives somewhere you didn’t intend.

Nobody actually measures this. Most people, myself included for three years, just use whatever length a shop sells. The rule exists, it’s just background noise until you accidentally end up outside it.

The oak pair put me outside it. Noticeably.

Why these two came out the size they did

Nobody set out to build an oversized pair. It’s closer to what the reclaimed barn timber actually allowed.

Old-growth barn wood tends to run thicker to begin with. Trees that grew slowly, in unmanaged stands, decades before modern forestry sped growth rates up, pack more growth rings into a wider, denser trunk than most lumber cut today. A blank cut from that stock starts thicker than a blank cut from a fast-rotation plantation tree of the same age, before a lathe ever touches it. These first two pairs weren’t cut down to a standard spec — they were turned close to what the timber gave up. Length followed the same logic: this is what came off this particular board.

If you want something sized to your own forearm instead of to the barn’s, a custom order can specify that. These two just weren’t built that way, and I decided that was more interesting than annoying.

What actually changes when it’s this big

Reach, first and most obviously. The arc is bigger, so the window to intercept it correctly is smaller relative to how fast it’s moving — the tip of a longer stick simply covers more distance per swing, which means more speed on arrival for the same motion at your shoulder. Longer isn’t just “further.” It’s faster at the point that matters, and less forgiving the moment you’re a few degrees off.

I have not hit myself. I want to be honest that this feels like luck holding alongside improvement, not pure improvement. But something real is happening: training with less margin for error is making the margin bigger. I’m reading the return earlier, committing to angles sooner, and staying looser under load because a tense grip on something this size dies immediately instead of just underperforming. Everything the smaller pair let me get away with, this one won’t.

The closest call so far, honestly reported

Today I clipped my fanny pack. Hard.

Given the angle, the direction, and the sheer speed with which my brain evacuated every other thought in my head, I have a fairly confident guess what that swing would have hit without eye drops, bandaids, a wallet, and chapstick in the way — the actual essentials, for someone who loses things easily and needs a bag whose entire job is keeping track of them for him. I’m not going to pretend otherwise for the sake of a cleaner narrative. That’s the actual risk profile of training oversized: not more frequent misses, just uglier ones when they land.

I’m glad I was wearing it. I don’t expect to stop wearing it.

The part I didn’t expect: this is turning into a workout

Three years on a properly-sized pair, this always felt like a hand and wrist thing. A long, thick pair stopped being just that almost immediately.

The handle is thick enough that grip strength alone doesn’t cut it — the hand has to close around real mass, which pulls the forearm in fully rather than letting the fingers do the work alone. Controlling that much swinging weight through a bigger arc pulls the shoulders and upper back into every strike and catch, instead of leaving them as spectators. My stance has to actually hold under the momentum instead of just standing there, which means the core and hips are working too. None of this shows up on a smaller pair the same way, because a smaller pair simply doesn’t have enough mass or arc to ask for it.

I wouldn’t call it a substitute for real strength training. I would call it the most full-body thing I’ve accidentally stumbled into by picking up something that turned out to be the wrong size on purpose.

What I’m actually noticing, day to day

The pattern I described after my first arm drag — hands feeling better on the weeks I train than the weeks I don’t — has gotten more obvious since moving to something this size. My hands hurt less by the end of a desk-work day. My fingers feel more capable of small, deliberate movements, not just stronger in a crude sense. My posture has noticeably opened up, which I think is just the accumulated effect of repeatedly pulling the shoulders through extension and rotation instead of the rounded-forward shape a keyboard builds all day, every day, for years.

I want to be careful here: this is what I’m noticing, not a study. I’m one person self-reporting on one unusually-sized pair of nunchaku, and none of it is medical advice. If your hands hurt for a real reason, see someone qualified before you go add a swinging piece of oversized hardwood to your week because a blog told you it worked out for one guy.

The honest bottom line

Don’t start here. I didn’t start here — this is three years and one private-lesson-taught arm drag and a lot of foam-then-hardwood progression deep before an oversized pair landed in my hands, and even now the margin for a genuinely bad day is thinner than I’d recommend to anyone earlier in the process.

But if you’re already solid on a properly-sized pair and you’re curious what changes when you go bigger: more reach, faster returns, a thicker grip demand that recruits your whole arm instead of just your hand, and — apparently — a much better incentive to keep your form honest than a stick that fits you ever gave me.