Pay in installments of $3.98 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Sep 24 - Sep 29
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
microSHIFT M21 Rear Derailleur - 6,7 Speed, Long Cage, BlackM21 rear derailleurs are designed to work with 6 and 7 speed Shimano road and mountain shifters. Enjoy the wide variety of bikes you can get going again with M21 rear derailleurs. Robust composite and steel construction Compatible with Shimano 6 and 7 speed mountain and road systems Product Specifics Rear Derailleur Mount Type: 10x1 Standard Rear Der Shifter Compatibility: Shimano Mountain Cage Length: Long Drivetrain Speeds: 6 Drivetrain Speeds: 7
M21 rear derailleurs are designed to work with 6- and 7-speed Shimano road and mountain shifters. Enjoy the wide variety of bikes you can get going again with M21 rear derailleurs.- Robust composite and steel construction
- Compatible with Shimano 6- and 7-speed mountain and road systems
Product Specifics
- Rear Derailleur Mount Type: 10x1 Standard
- Rear Der/Shifter Compatibility: Shimano Mountain
- Cage Length: Long
- Drivetrain Speeds: 6
- Drivetrain Speeds: 7
- Weight: 206
- Color: Black
- Chain Wrap Capacity (teeth): 43
- Largest Cog: 32
Today's Stock Status
10+ Available to ship in 2-4 Business Days
UPC: Not available
EAN: 4710495436340
Manufacturer Part Number: RD-M21L
RD0210
167890-Q0-L
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
4.8 ★★★★★
Based on 5 reviews
Sort
Product Reviews
★★★★★ 5
Drink one every day over ice! Great taste!
Flavor Name: Chocolate, Size: 11 Fl Oz (Pack of 12)
I’ve been getting Premier Protein Shake on auto delivery for a while now, and it’s one of the best decisions I’ve made for convenience and consistency. Each shake packs 30g of protein with only 1g of sugar, which makes it perfect for busy mornings or a quick post-workout boost without the guilt. 
The auto delivery is a game changer—no more running out or last-minute store trips. It just shows up right when I need it, and I can easily adjust or skip deliveries if needed. 📦
Taste-wise, the shakes are smooth and actually enjoyable (not chalky like some others). I’ve tried a few flavors and haven’t been disappointed yet.
If you’re looking for a reliable, grab-and-go protein option with zero hassle, this subscription is 100% worth it! 💪
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 22, 2026
★★★★★ 5
Low Calorie, Great Taste!
Flavor Name: Chocolate, Size: 11 Fl Oz (Pack of 12)
I started drinking Premier shakes while recovering from lapband surgery in 2012. They are delicious, low calorie , high protein meal replacements, with no added sugar. I have tried most of the flavors and I have 3 -4 favorites that I rotate. They are great on the go and a good addition to iced coffee. A good part of my weight management process.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
★★★★★ 5
Great quality
We had a banana tree in FL and these are every bit as good tasting. They are perfect, not over ripe and not hard.
Totally as good as the ones we picked in FL. The price we paid to the ones at the story locally. We think the value for the product is super.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
★★★★★ 5
Disgusting bananas
Usually, the bananas are really good little on green side, which I enjoy. But this delivery was terrible. The bananas were smashed. Half of them were turning brown. One was even pulled off of the stems, already very disappointed and these bananas.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
★★★★★ 5
Banana
Not so ripe but it was good
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026