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Ships within 48 hours · Estimated delivery Aug 16 - Aug 21
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For Your Every Summer RSVP, with Code: SUMMER15
Description
RK Chain and Sprocket for Aprilia RSV4 1000 (2015-2017)RK Chain and Sprocket for Aprilia RSV4 1000 (2015 2017) RKs flagship model. ZXW Series were developed to meet the spec of the latest models of extreme superbike 1000cc and above. Designed to be the strongest, long lasting premium quality XW Ring equipped chain available on the todays market, with highest tensile strength of RK series and high rigidity for instant respond on acceleration. RK ZXW Series were developed to meet the specification of the
RK Chain and Sprocket for Aprilia RSV4 1000 (2015-2017)
RK’s flagship model. ZXW Series were developed to meet the spec of the latest models of extreme superbike 1000cc and above. Designed to be the strongest, long-lasting premium quality XW-Ring equipped chain available on the today’s market, with highest tensile strength of RK series and high rigidity for instant respond on acceleration.
- RK ZXW Series were developed to meet the specification of the latest Superbike and Adventure motorcycles.
- RK ZXW Series features RK's only technology of XW-Ring, which has two lubrication pools and three contact lips, a triple barrier structure to further seal the lubrication and prevent debris to enter the chain,
- RK ZXW Series are designed to be the strongest, long lasting chain available on the todays market, with highest tensile strength of RK Series and high rigidity for instant respond on acceleration.
Includes :
- RK 525ZXW Silver Chain with 110 Links
- RK Front Sprocket 16T
- RK Rear Sprocket 41T
Features:
- Extreme Riding - High torque high cc displacement has become a norm in riders life now. XW-ring deliver the real power from your machine to you without compromise.
- World Class Rider Pick - RK XW-ring was handpick by many world class rider throughout the world and was featured in countless world racing.
- XW-Ring Series - As the demand for higher cc bike is growing, we cater the market with our most advance chain technology, the XW Series. Proudly been chosen by renown MOTOGP riders, now you have the sane privilege to taste the MOTOGP spiril. In RK we know what is best for the Extreme You!
- Includes rivet type master link
Note : Prior to check out, please click here to confirm product availability, fitment and payment methods.
Image for reference only. Actual RK Chain may vary slightly depending on your motorcycle make and model.
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
4.7 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 5
Awesome shirt
Color: Light Pink, Size: 3X-Large
I love this shirt awesome I brought three of them the other 2 are arriving today Thankyou coofandy
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Reviewed in the United States on May 21, 2026
★★★★★ 1
Is this a joke?
Color: Cream, Size: Large, Color: Cream, Size: Large
Is this a joke? I just opened a package that was sold as new, but nowhere on the purchase did it say it was refurbished or used. It looks obviously worn, yet it was sold to me as new. This should have been given to me for free. There are permanent stains on it and fresh hair all around the neck area, and I don’t have hair — I’m bald. Please see the pictures and my video. I just opened the pack, and it looked refolded and packaged as if fresh from someone else’s laundry.
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Reviewed in the United States on April 18, 2026
★★★★★ 5
Buy it
If you're looking for a comfortable thick and nice turtle neck this is the one. It's nice and form fitting nice weight to it to keep you warm. But not to thick that you cant just wear it on a regular sunny day if you wanted. The design pattern Is also very nice. Can dress it up or down. I bought the black and then immediately bought the rust orange color for my friend once he tried on mine he wanted one immediately so I gifted him one. He loves it. Definitely worth the buy. Excellent quality. I bought a Large 5"11 165lbs
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Reviewed in the United States on December 21, 2024
★★★★★ 5
What you see is what you get!
Color: 01-black, Size: Large
Fits great, fabric is amazing, turtle neck fits tight, and the quality is amazing!
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Reviewed in the United States on February 11, 2026
★★★★★ 4
A true turtleneck that retains a snug high neck.
Color: White, Size: X-Large
I've found this brand to have gotten better over the years as far as offering the American market what it needs in terms of realistic sizing. I only wish they'd realize that there are a lot of us who are long in the back and arms where my only choice is to go a size up and sacrifice a slim fit for sleeves that are long enough plus a back that doesn't go up past my waist just because I reach up for something, that and I like to be warm. So these are such nice quality turtlenecks that it's hard to complain about but maybe the company will read this. The snug neck stays up is plus number one since that's why I'm buying a full neck. They come with very nice weaves in the fabric, good enough for casual or formal wear. Finally the warmth you seek is there but I've worn them in what most would think isn't the right temp for a turtleneck. Also they have them in white! Yes, a lot of others just don't for reasons I can't fathom, and the pic you're seeing is accurate, these will form to your shape without being ridiculously thin material. Several washes later and they are as fine a garment as when I first wore them. I've only found one other brand that compares to these but it's much more expensive, COOFANDY is affordable in these times of expensive everything. Warm but also a lightweight shirt, I've gotten them really dirty with actual dirt and it washes out so well you'd never know it. Don't let my taking off one star stop you, try one yourself and you'll be coming back for more.
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Reviewed in the United States on July 30, 2025