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Shimano - ACERA Rear Derailleur RD-M3020-8 8/7-speed

Marsoni M251S
Sale price$55.00
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Shimano - ACERA Rear Derailleur RD-M3020-8 8/7-speedDouble Servo construction for smooth and precise shifting Versatile performance and wide compatibility Max. low sprocket: 40T Total capacity: 45T Product Description The SHIMANO ACERA M3020 8 rear derailleur with Double Servo technology helps you ride challenging terrain with fewer interruptions. Product Specifications Rear Speed 7 8 Speed Average weight Color Black Pulley cage SGS Rear speeds 8 Low sprocket Min. 30T Low sprocket Max. 40T Rear speeds
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
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4.6 ★★★★★
Based on 2151 reviews
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raj
Draper, US
★★★★★ 5
Perfect fit
Color: Black+Smiley Face
Nice
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
J
Verified Purchase
Jeanne Conley
New York, US
★★★★★ 3
Suction cups aren’t the best
Color: Black+Smiley Face
The suction cups don’t hold and my smiley sponge isn’t snug on the post so it sometimes falls off.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 16, 2026
S
Verified Purchase
Sisi
Belleville, US
★★★★★ 5
Sticks and stays in place!!
Color: Black+Smiley Face
Love love loveeee this! Took me a while to find one that actually sticks and stays in place. I've had mine for a few months now. Looks just like the photos & comes with the suction cups and an adhesive strip if you want a firmer hold. The suction cups work just fine. Would recommend 👍🏾😁
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Reviewed in the United States on August 4, 2025
J
Verified Purchase
Joyce Baker
Dallas, US
★★★★★ 5
Well made solid shelves
Size: 42 inch 2 Tier
Look exactly like picture. Very well made and easy to assemble!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026
Y
Verified Purchase
Yvette
Bozeman, US
★★★★★ 5
Very easy to put up and assemble!
Size: 48 inch 3 Tier, Size: 48 inch 3 Tier
We were looking for a nice shelf over our coffee bar, and this industrial pipe shelf was perfect! This was very easy to assemble! Simply put in your anchors and screw in the bases! We ordered the three tier shelf but only needed two, and it was very easy to make that adjustment! I loved that this was solid wood shelving rather than particle board.
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Reviewed in the United States on May 9, 2026

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