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Ships within 48 hours · Estimated delivery Jul 29 - Aug 3
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Description
CURVE 24IT'S ALL ABOUT THE LEARNING CURVE We believe the Opus Curve should be every kids first bike. Now available in five sizes (12 to 24"), these micro machines are built with durable steel tubing and shaped to our proven youth geometries. The all new Curve 20 and Curve 24 are equipped with front and rear V brakes and a reliable 7 speed drivetrain. Nothing more you could ask for in these 2 new additions to our Learning Curve. Features Light alloy frame and
IT'S ALL ABOUT THE LEARNING CURVE
We believe the Opus Curve should be every kid’s first bike. Now available in five sizes (12” to 24"), these micro machines are built with durable steel tubing and shaped to our proven youth geometries. The all new Curve 20 and Curve 24 are equipped with front and rear V-brakes and a reliable 7-speed drivetrain. Nothing more you could ask for in these 2 new additions to our Learning Curve.
Features
- Light alloy frame and steel fork
- Proven 24-inch geometry
- Microshift 1x7 drivetrain
- Equipped with front and rear rim brakes
- Easy-rolling tires
Specifications
| Frame | Aluminum |
| Fork | Steel |
| Sizes | 24" |
| Shifters | Microshift Twist Shifter 1×7 DS45 with Indicator |
| Front Derailleur | N/A |
| Rear Derailleur | Microshift 7 Speed RD-M26CS |
| Brakes | Power Linear V-brake |
| Brake Levers | Tektro Short reach |
| Crank | Samox single ring with chain cover |
| Chainrings | 36 |
| Bottom Bracket | VP-BC73 Sealed Cartridge Bearings |
| Cassette Cogs | 14-34 |
| Chain | KMC Z7 |
| Headset | VP semi-integrated |
| Handlebar | Opus Junior 540 mm, 30 mm rise |
| Stem | Opus Junior |
| Grips/Tape | Opus Junior |
| Saddle | Opus Youth Urban |
| Seatpost | Opus Junior 25.4 |
| Wheels/Rims | Ace aluminum |
| Hubs | YL-906 |
| Tires | Kenda K-Rad 24x1.95 |
| Pedals | Resin flat |
Geometries
| SIZE | 24" |
| SIZE (CM) | |
| RIDER (± CM) | 125-145 |
| Rider's Age | 8-12 |
| SEAT TUBE | 355 |
| TOP TUBE | 496 |
| HEAD TUBE | 100 |
| HEAD ANGLE | 70 |
| SEAT ANGLE | 74 |
| CHAIN STAY | 400 |
| BB DROP | 30 |
| STACK | 469 |
| REACH | 361 |
| STAND OVER | 610 |
| BAR | 540 |
| STEM | 40 |
| CRANK | 140 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 14 reviews
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Product Reviews
★★★★★ 5
Great entertainment for kittens too!
Color: Blue
My kittens love this toy and play with it more than my dog. I bought it on sale. I am impressed with the quality, ease of use, and I rarely need to charge it.
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Reviewed in the United States on June 10, 2026
★★★★★ 1
Do not buy… false advertising does not move!!
Color: Red
Terrible!!!
No directions & no movement at all!!!
Button?? Push….
Sure there is no button
No way to charge…
Scam
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Reviewed in the United States on May 29, 2026
★★★★★ 5
Great toy for dogs
Color: Red
My dog loves this toy, it was well worth the money. And I’m glad it charges with USB and not batteries.
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Reviewed in the United States on June 8, 2026
★★★★★ 4
Finally, a Toy That Out-Works My Dog!
Color: Blue
My dog gets bored easily, and this automatic moving ball has been a hilarious and effective distraction. It bounces and rotates on its own, which triggers her hunting instinct immediately. The rope chew attached to the side is a nice touch for some added teeth cleaning while she plays. It’s sturdy enough for a medium-sized dog and the fact that it's waterproof means I don't have to worry when she eventually drops it in the water bowl or takes it out into the melting snow. The *only* issue I have is it starts before I can even screw it back together. It wants to jump out of my hands before I'm ready.
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Reviewed in the United States on February 19, 2026
★★★★★ 5
My dogs think this is either terrifying or amazing
Color: Blue
I got this interactive dog toy thinking it would turn my living room into a fun little chase arena for my two small dogs. Technically, it did create excitement, but not in the way I expected. The toy rolls around unpredictably and wiggles its rope like it is trying to escape, which is honestly hilarious to watch. The movement is surprisingly energetic and the different speed modes keep it from feeling repetitive or robotic. The battery life is decent and it charges quickly, so it is easy to keep it ready for playtime.
Now for the comedy... my one year old Silky Terrier is normally the fearless one. He charges vacuum cleaners, interrogates delivery boxes, and believes he is the head of household security. However, the moment this toy turns on and starts moving, he suddenly remembers he has very important business somewhere else. He will sit at a safe distance and stare at it like it might file a police report against him.
The funny part is that when the toy is turned off, it instantly becomes his favorite object in the house. He happily grabs the rope, drags it around, chews on it, and proudly carries it like a trophy. Apparently his bravery only applies when the toy is not alive. I have discovered that in my house this is considered the acceptable mode of operation.
My seven year old Yorkie is even wiser. She took one look at the moving toy, processed the situation for approximately three seconds, and decided she would absolutely not be participating in whatever nonsense was happening on the floor. She calmly walked away and has maintained that policy ever since. She clearly understands this toy and wants no part of it.
Overall the toy is well made, entertaining, and definitely capable of keeping energetic dogs busy. Even if your dogs end up like mine and treat it as either a suspicious creature or a decorative rope toy, it still provides plenty of entertainment for the humans watching the situation unfold. If your dog enjoys chasing unpredictable moving toys, this one will probably become a household favorite. If not, you may at least get a very funny show out of it. 🐶
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Reviewed in the United States on March 10, 2026