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- USA
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Ships within 48 hours · Estimated delivery Jul 13 - Jul 18
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Description
RK 855 Steel Rear Sprocket #520RK Takasago Sprockets Now Available to the Public Race Teams the world over have had the luxury for years of getting the royal treatment when it comes to quality RK racing chains. Now finally after years of racing success, RK sprockets are available to the general public in New Zealand and the world. Rigourously tested by top international racers on tracks and circuits, RK bring their superior quality and manufacturing controls to every individual
RK Takasago Sprockets Now Available to the Public
Race Teams the world over have had the luxury for years of getting the royal treatment when it comes to quality RK racing chains. Now finally after years of racing success, RK sprockets are available to the general public in New Zealand and the world. Rigourously tested by top international racers on tracks and circuits, RK bring their superior quality and manufacturing controls to every individual sprocket that they build - it's just like being in a race team with the ultimate running gear parts.
Eyeing up the details
RK Takasago Sprockets are supplied to White's Powersports with their 11 point quality control specifications sheets - that's how committed to quality and excellence RK is in the world of manufacturing. With tooling of this calibre it is easy to see why RK Sprockets are the first choice sprocket of world leading motorcycle manufacturers and racing teams.
RK Takasago Sprockets
Japanese Technology
Rear sprocket manufactured with S45C Carbon Steel,
7075-T6 Alloy Aluminium (depending on sprocket specification)
Front sprocket manufactured with SCM-415 Alloy Steel
Special surface heat treatment and hardening on teeth
Durable and long lasting
Optimum thickness for heavy duty use
Enhanced power delivery and efficiency
Mud grooves in specific sprockets
RK Takasago Sprockets are supplied to White’s Powersports with their 11 point quality control specifications sheets - that’s how committed to quality and excellence RK is in the world of manufacturing. With tooling of this calibre it is easy to see why RK Sprockets are the first choice sprocket of world leading motorcycle manufacturers and racing teams. Rear sprocket manufactured with S45C Carbon Steel
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
4.4 ★★★★★
Based on 1048 reviews
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Product Reviews
★★★★★ 3
Well-designed and quiet, but didn’t keep my dog interested
Color: Blue
My dog was interested in this at first, but she would lose interest after a few minutes and move on.
I do like that it’s quieter than the hard plastic ball toys, and the charge lasts well. The internal charging port that twists closed is also a nice design feature.
That said, it will occasionally turn on by itself, which can be a little surprising. Overall, it has some nice features, but it just didn’t keep my dog engaged.
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Reviewed in the United States on April 30, 2026
★★★★★ 1
Good - for a few hours
Color: Blue, Color: Blue
Concept is fantastic. Dog loved it. Problem is that she figured out how to open it within two hours of play. The robot core, alas, did not survive. In the photo, you see a tooth went cleanly into the button and that was the end of the toy.
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Reviewed in the United States on May 17, 2026
★★★★★ 5
The most engaging interactive toy for my Border Collie
Color: Orange, Color: Orange
My Border Collie is not a big ball player. He prefers tug type games and actually gives me a look like, “Are you stupid? I’m not going to keep bringing that to you if all you’re going to do is throw it away again!” after about the third time I throw a ball for him to fetch. However, I can only play tug so often and I need him to be entertained and engaged as much as possible.
I got him a smaller, non-padded ball like this hoping he would like the interactive aspect of it. He did- he actually loved it! But it was loud, hard on his teeth, would come apart periodically, and he kept hitting the off button when playing with it. It drove me crazy. This one is so much better overall! The soft outer shell is not only easier on his teeth, but it is super resilient to biting and chewing. He actually likes to carry this thing around in his mouth while it’s bouncing and vibrating.
The three modes give great flexibility for different kinds of play. His favorite is the most active mode: the ball reacts to touch and practically bounces itself across the floor when he touches it with his paw or mouth. I will point out that in one of the modes, I thought the battery wasn’t charged or there was a motor issue because it’s very subdued movement; however, it’s just set up as a low-key option. Be sure to check out each mode to see which works best for your dog at different times.
I can’t say enough about this ball- I have been so pleasantly surprised by how much he loves it. The rechargeable feature is super convenient, it’s big enough to not get stuck under the couch, and it automatically shuts off based on whichever mode it’s set on. As the owner of a busy, super-smart dog who needs to be engaged in mental and physical activity, I think this all is worth every penny. In fact, I’m buying one for a friend who has a Border Collie pup with lots of energy to burn! I highly recommend this toy- it’s the most engaging toy I’ve found that Finn will play with on his own.
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Reviewed in the United States on April 13, 2026
★★★★★ 2
Not as Smart or Interactive as You Think it Will Be
Color: Blue
This is an honest review from a schnauzer owner who has has wanted this cheerble ball for their dog for more than one year. I finally bougI finally bought this toy and both me and my dog are disappointed. The settings are...i would say dog friendly as I'd assumed a dog ball would be. What I mean by that is, for example: the calm play setting is muuch too calm. Super light puffs of energy, like a battery is dying. And the playful setting is scary, alarmingly so. The intervals in between are too long. The ball does not bounce. So they just have settings all wrong. The size is good for a large dog only. Do not buy if you have a small to medium dog. I even think the material is okay. I've only had it for a few days so I can't even speak to how the material holds up. Really hoping to love this ball for my dog. It was not the distraction I was hoping it would be so I could work from home while my dog had fun. I'm hoping this can help someone else who's been pining over it. Essentially, it's a $35-$50 well made weighted ball that moves occasionally.
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Reviewed in the United States on May 9, 2026
★★★★★ 5
Perfect Size for Tiny Dogs
Style: 14" Length Sport Launcher, Style: 14" Length Sport Launcher
Excellent size for tiny dogs who can only manage the tiny tennis balls. The launcher is easy to use, even for my 8 year old. It’s pretty much revolutionized ball time for the dogs and the kids - they actually like taking him out to play fetch now. It’s super light but still lets you toss the balls a lot farther than just throwing it. Great value for your money and it’s helps strong for weeks of repeated used, super durable.
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Reviewed in the United States on March 18, 2026
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