


Chris King R45D GEN 4 Conversion Kits
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Chris King R45D GEN 4 Conversion KitsConvert your R45D 6 Bolt Gen. 2 and R45D Centerlock hubs to fit Shimano HG11, HG12, Micro Spline, or SRAM XDR cassettes with our Gen 4 conversion kit. Gen 4 conversion kits include a pre assembled axle, driveshell, and updated adjusting clamp for a plug and play swap. Installation requires a 2. 5mm hex key and T10 Torx tool. Compatible with R45D 6 Bolt Gen. 2 hubs. Serial numbers will begin with 6910. Compatible with all R45D Centerlock hubs. Serial
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.7 ★★★★★
Based on 1516 reviews
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Product Reviews
★★★★★ 3
Not anti slip. Baby can't pull off.
Size: 12-18 Months Infant, Color: Light Pink Sherpa
Made and fits well, baby can't really pull them off. The bottom of the bootie is slick not anti slip so baby was sliding everywhere, while trying to walk on hardwood floor.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
★★★★★ 5
Would recommend
Size: 12-18 Months Toddler, Color: Pink Sherpa
These shoes are easy to put on and fit great. My daughter can’t easily take them off. I love the material and I’m grateful that I know her feet are warm during the cold month. They seem like they’d be easy to wash.
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Reviewed in the United States on November 30, 2025
★★★★★ 5
Quality booties that don’t fall off
Size: 0-3 Months Infant, Color: Ivory Sherpa, Size: 0-3 Months Infant, Color: Ivory Sherpa
Love these booties - super cute, quality made, and they don’t fall off even when we’re passing the baby around. We put these on without socks; the booties are not lined with fleece but has a firm sole. I got the 0-3 months size for my 3 month old and there’s still a little bit of room to grow. Easy to put on baby’s wiggling feet and there are two snap buttons to select for fit. There’s really no grip on these so not sure how they hold up for walking. The fleece is plush and seems to keep baby’s feet warm.
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Reviewed in the United States on November 5, 2024
★★★★★ 5
Love these shoes!!
Size: 6-12 Months Infant, Color: Ivory Sherpa, Size: 6-12 Months Infant, Color: Ivory Sherpa
In the winter/fall months these were our go to shoes for our daughter! They were comfortable for her and kept her feet warm. Easy to put on and take off and so cute!! We’ve washed them quite a few times and they hold up really well.
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Reviewed in the United States on March 27, 2024
★★★★★ 5
Cute and stay on wiggly baby!
Size: 0-3 Months Infant, Color: Ivory Sherpa
Love these boots because they are so cute and stay on my wiggly baby's feet because of the snap that holds them in place. I also like how there are two different snaps to choose from depending on how thick your baby's feet are.
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Reviewed in the United States on January 3, 2025