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Ships within 48 hours · Estimated delivery Jul 28 - Aug 2
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Description
microSHIFT Acolyte RD-M5185M-B SpringLock Rear Derailleur - 8 Speed, Medium Cage, Black, SpringLock Chain RetentionThe heart of this microSHIFT Acolyte derailleur is the innovative SpringLock system. By pairing a customized linear rate high tension spring and a dual stage activation mechanism, weve developed a system that can provide substantial chain security when you need it and can be turned off when you dont. To engage the clutch, turn the engagement bolt clockwise until it clicks. Theres no way to overtighten the bolt. To disengage the clutch for wheel
The heart of this microSHIFT Acolyte derailleur is the innovative SpringLock system. By pairing a customized linear rate high tension spring and a dual stage activation mechanism, we’ve developed a system that can provide substantial chain security when you need it and can be turned off when you don’t. To engage the clutch, turn the engagement bolt clockwise until it clicks. There’s no way to overtighten the bolt. To disengage the clutch for wheel removal, flip the switch. It’s that simple.- Innovative SpringLock chain retention keeps chain in place over rough terrain
- Direct path cable routing for smooth and responsive shifting
- Compatible with 12-42t and 12-46t 8-speed cassettes
- Compatible with Acolyte shifters only
Product Specifics
- Largest Cog: 46
- Rear Der/Shifter Compatibility: microSHIFT Acolyte
- Rear Derailleur Mount Type: 10x1 Standard
- Drivetrain Speeds: 8
- Chain Wrap Capacity (teeth): 37
- Cage Length: Medium
- Color: Black
Today's Stock Status
Currently not available
UPC: Not available
EAN: 4710495436890
Manufacturer Part Number: RD-M5185M-B
RD0178
191116-Q0-L31B04
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
4.3 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 5
I would buy this twice!
Style: Sport, Size: 12in
This Chuckit! Dog Ball Launcher 12M Sport is the perfect product for the dog park! It makes games of fetch so much easier and more fun — the long handle gives great reach, so I can launch balls super far without even bending over, and our dog goes absolutely wild chasing them.
It’s comfortable to hold, works smoothly with 2.5" dog balls, and really saves your arm and back if you’re doing a lot of throwing. The design is sturdy and reliable, so we can play for longer without worrying about it snapping or wearing out.
If you spend time at the dog park or love playing fetch, this launcher turns a regular game into something even better — our pup gets twice the exercise and we get to enjoy every minute of playtime!
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Reviewed in the United States on March 1, 2026
★★★★★ 5
Caution can cause addiction
Style: Sport, Size: 12in
My dog has become addicted to tennis balls because of this! She sees the blue handle and she immediately loses her mind! I love it because I don't have to bend down as far to pick up the ball, which is amazing after 2 back surgeries.
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Reviewed in the United States on February 25, 2026
★★★★★ 3
12 " too short, no direction.
Style: Sport, Size: 12in
I got the twelve inch handle. It is too short and does not flex enough to release ball in right direction. Its almost impossible to aim and doesn't sent the ball far enough.
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Reviewed in the United States on April 22, 2026
★★★★★ 5
Excellent balls
Color: 12 Tennis Ball, Color: 12 Tennis Ball
Good size and keeps my senior dog active. Very durable and they squeak
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Reviewed in the United States on February 27, 2026
★★★★★ 5
Great toy my dog loves!
Color: 12 Tennis Ball
My dachshund, Winston, loves these balls because they squeak and of coarse it’s a ball. Only thing is he is destructive and the squeaker doesn’t last long but by far his favorite toy.
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Reviewed in the United States on February 26, 2023