SKU: 26336162556

Shimano BB-RS501 BSA Hollowtech II Bottom Bracket

$22.50 $25.00
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Ships within 48 hours · Estimated delivery Aug 25 - Aug 30

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Description

Shimano BB-RS501 BSA Hollowtech II Bottom BracketThe BB RS501 from Shimano is a high quality bottom bracket for frames to BSA standard with 68 mm housing width. Usable is the Shimano BB RS501I with BSA thread for Hollowtech II cranksets with 24 mm shaft. Product features Shimano BB RS501 68mm shell width BSA Use: Road, Cyclocross, City, Gravel Model: BB RS501 BB Type: HOLLOWTECH II (24mm) Threaded: BSA Threaded BB shell width: 68mm Shell diameter: BSA (BC 1. 37) Mounting: screwed Compatibility

The BB-RS501 from Shimano is a high-quality bottom bracket for frames to BSA standard with 68 mm housing width. Usable is the Shimano BB-RS501I with BSA thread for Hollowtech II cranksets with 24 mm shaft.

Product features - Shimano BB-RS501 | 68mm shell width | BSA

Use: Road, Cyclocross, City, Gravel

Model: BB-RS501

BB-Type: HOLLOWTECH II (24mm)

Threaded: BSA

Threaded BB shell width: 68mm

Shell diameter: BSA (BC 1.37)

Mounting: screwed

Compatibility

TIAGRA FC-4700, FC-4703

SORA FC-3550, FC-3503, FC-R3030, FC-R3000

CLARIS FC-R2000, FC-R2030

GRX FC-RX600

FC-RS520, FC-RS510, FC-RS500, FC-RS400 FC-R563, FC-R460, FC-R350 FC-CX50

Material

Aluminum

Resin

Weight

93g (manufacturer information)

Shipping Notes
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 26336162556

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4.6 ★★★★★
Based on 25 reviews
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Product Reviews
L
Verified Purchase
Lisa Thompson
Omaha, US
★★★★★ 5
Perfect for me!!
Size: 90 Count (Pack of 1)
This was always my most favorite Magnesium supplement until Smarter Nutrition replaced it with another formula. Marine Derived Magnesium helped me fall asleep and more importantly, by shutting off my thoughts so that if I did wake for any reason, I was able to drift back to sleep quickly!! Am so relieved that they've brought it back! 😴
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 1, 2025
J
Verified Purchase
jorge
Waukegan, US
★★★★★ 4
Really liked the natural sourcing and added ben...
Size: 90 Count (Pack of 1)
This product is great. I appreciated the avocado oil included and that it's naturally sourced. It helps support sleep, bones, and muscles, which I need. The only thing is, I wish it absorbed faster. Still, overall, a good supplement for daily use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 24, 2025
T
Verified Purchase
TommyC
Fort Morgan, US
★★★★★ 5
Great supplement for overall health benefits
Size: 90 Count (Pack of 1)
I really like the features of the magnesium supplement. The fact that it's non-GMO and naturally sourced makes me feel better about taking it daily. I noticed improved sleep and muscle recovery after workouts. Including avocado oil and trace minerals is a nice touch. Overall, a good product for supporting bone, sleep, and muscle health.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 21, 2025
M
MH
Lake Worth, US
★★★★★ 3
Didn't help for sleep
Size: 90 Count (Pack of 1), Size: 90 Count (Pack of 1)
First of all, I want to mention that I do think this is a quality product. Sea-based magnesium has had a good effect on me before and with the combination of AstraGin and avocado oil, this is a solid list of ingredients. AstraGin is a patented proven combo of notoginseng and Astragalus that helps with absorption in small doses. This was my first time trying AstraGin and I was unsure about using it for nighttime use due to the notoginseng, which is stimulating. But I have seen this in some other sleep formulas and they claim it's only meant for absorption and shouldn't stimulate. The first time I tried it at night with some of my usual supplements, I fell asleep easily but all of a sudden woke up 2 hours later and couldn't go back to sleep for 1.5 hrs. I only drifted back to sleeping bc I was so awake and had to resort to THC gummies. I took a couple days off and tried it again and it was the same bad sleep. Your experience might be different from mine because I am very sensitive to a lot of supplements and I think the AstraGin just doesn't agree with my system but I wanted to let other sensitive people know so they can be cautious.
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Reviewed in the United States on August 22, 2025
A
Verified Purchase
Amazon Customer
Lake Worth, US
★★★★★ 5
Worth the money
Size: 90 Count (Pack of 1)
Works well for sleep
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 8, 2026

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