# \[Release Info\] #UNBRANDED STEPROUND UNDERSIZE

**URL:** <https://forums.yoyoexpert.com/t/release-info-unbranded-stepround-undersize/444886>\
**Category:** Up & Coming Manufacturers\
**Created:** [May 1, 2026, 8:16am UTC](https://forums.yoyoexpert.com/t/release-info-unbranded-stepround-undersize/444886 "2026-05-01T08:16:48Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![UNBRANDED](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/unbranded/32/610351_2.png) [@UNBRANDED](https://forums.yoyoexpert.com/u/UNBRANDED)\
**Post date:** [May 1, 2026, 8:16am UTC](https://forums.yoyoexpert.com/t/release-info-unbranded-stepround-undersize/444886/1 "2026-05-01T08:16:49Z")

</div>

**#UNBRANDED STEPROUND UNDERSIZE**

## **Just made smaller.**

### **Undersize specs, full-size performance.**

 ![SRU-B-YYE-1](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/b/c/f/bcf3729bc2dc3d01c4bd5458b7977f8d518b6948.jpeg)

You’ve started to fluidly connect your own combos with a full-size yo-yo. Yo-yoing is fun. You want to keep it with you more often. If only it fit in your pocket… The desire for an undersize yo-yo naturally grows from that feeling.

However, when you actually throw a smaller yo-yo, your usual tricks don’t feel the same. The spin is insufficient, mounts are unstable, and binds don’t snap back. You haven’t changed, but just by switching yo-yos, that “flow” disappears. Eventually, you go back to full-size, and the smaller yo-yo ends up sitting on the shelf.

**STEPROUND UNDERSIZE was designed to change that experience.**

We took the high rotational efficiency of the “Step-Round Shape” established with the STEPROUND FULLSIZE and brought it directly to the undersize format.

Small yo-yos inevitably lose spinning power. Traditionally, the only way to compensate was to make the rims heavier, resulting in “heavy yet sluggish” undersize yo-yos that still wouldn’t spin long enough.

 ![SRU-B-YYE-2](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/c/7/f/c7ff66d8b3c9aef449593d2e05fe9482d48a1f7a.jpeg)

**STEPROUND UNDERSIZE changes the approach.**

Instead of relying on pure weight for spin power, we secured it through efficient weight distribution and by increasing the initial RPM (rotational speed) of the throw. Because Size D bearings have a smaller outer diameter, the string wraps around them more times for the same length of string, resulting in higher RPMs upon release. Furthermore, the combination of a lightweight Size D bearing and an M3 axle significantly reduces the weight of the center section. By making the rims streamlined—rather than pushing them too far to the extreme edge—we achieved a balance between agility and persistent spin. With a slightly wide 44mm width, it remains easy to catch on the string while maintaining sufficient rim weight.

The result is a light release from your fingers the moment you throw. The yo-yo follows your movements faithfully during direction changes. Yet, the spin doesn’t die out even at the end of a long combo.

 ![SRU-B-YYE-3](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/d/c/c/dcc6a9739e96b6e74136ecfed5ac7462f494253e.jpeg)

**The only thing that changed is the size. The satisfaction of the play remains.**

Beyond that, you get the unique benefits of an undersize. It glides through the tight gaps of complex string tricks with ease. It offers the freedom of carrying a yo-yo in your pocket anytime, anywhere. The “nimble fun” that full-size yo-yos can’t provide is now built on a foundation of reliability.

There is nothing to fear.

Your ideal relationship with the yo-yo simply continues.

Highly recommended for your first undersize experience.

**Recommended for:**

- Players who have mastered combos on full-size yo-yos and are curious about undersize models.

- Those who have tried undersize yo-yos before but weren’t satisfied with the feeling.

- Anyone looking for a yo-yo that fits comfortably in a pocket for everyday carry.

 ![SRU-B-YYE-4](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/0/d/0/0d083a4be769eee3c4c799154fbeee68ff67aac5.jpeg)

**Specifications**

Material: Aluminum  
Style: String Trick (1A)  
Diameter: 51.5mm  
Width: 44mm  
Weight: 61.5g  
Response: Ring Pad (18mm OD)  
Bearing: Size D Bearing (Concave by default)  
Axle: M3-8mm

> **[\#UNBRANDED (@unbrandedyoyo) • Instagram photos and videos](https://www.instagram.com/unbrandedyoyo/)**
>
> 291 Followers, 0 Following, 48 Posts - See Instagram photos and videos from #UNBRANDED (@unbrandedyoyo)