Shipping Estimate
USA
- USA
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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 14 - Jul 19
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Description
RK B4507 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
4.9 ★★★★★
Based on 1704 reviews
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Product Reviews
★★★★★ 5
Replacement quality is outstanding
Size: Eufy A-21Packs
Great value. Plug and play. Worked as designed
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
★★★★★ 4
Perfect fit but originals last longer
Size: Eufy A-21Packs
With 4 cats and 2 dogs and using my Eufy RoboVac 11S Max twice a day until it dies, the brush and filters don't seem to last long. These replacement parts fit perfectly, but do not seem to have the same lifespan as the originals - would have to do the math to see if it would be worth buying original replacements, but that is probably case dependent. Overall happy, but took a star away for shorter wear life.
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Reviewed in the United States on December 1, 2025
★★★★★ 5
Excellent service
Size: 19pcs
Received parts in no time. Parts fit perfectly. Vacuum cleaner is back in operation at a very low price.
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Excellent Deal
Size: Eufy A-21Packs
Great deal - pricing is fantastic making it easy to keep my little robo-vaccum running smoothly. The replacement parts are super easy to click into place - and having these multi packs will last a long time. Packaging is secure and the delivery was quick. The brush quality is excellent and function well with the exsisting parts already in place. These are not 'remakes' or 'versions' but an exact match to the originals. The replacement parts keep the same level of low noise and look intact. No guessing required. I'd recommend these for anyone with an Eufy RoboVac.
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Reviewed in the United States on January 14, 2026
★★★★★ 5
Stock up!
Size: Eufy A-21Packs
Exactly what I needed! Works great!
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Reviewed in the United States on May 18, 2026
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