SKU: 83405607171

Bosch E-Bike Motor DM Drop-Stop B Chainring

Sale price$160.19 Regular price$177.99
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Description

Bosch E-Bike Motor DM Drop-Stop B ChainringThe Wolf Tooth Direct Mount Chainrings for Bosch E Bike Motors are compatible with all Boost and Super Boost bikes that use the Bosch Gen 4 E Bike Motor. This continues the Wolf Tooth product line of Drop Stop chainrings for e bike motors. Direct Mount Chainrings for Bosch E Bike Motors are machined with 7075 T6 aluminum at Wolf Tooth in Minnesota, USA. Drop Stop technology: On Wolf Tooths patented wide narrow chainring, the wide side of the tooth has

The Wolf Tooth Direct Mount Chainrings for Bosch E-Bike Motors are compatible with all Boost and Super Boost bikes that use the Bosch Gen 4 E-Bike Motor. This continues the Wolf Tooth product line of Drop-Stop chainrings for e-bike motors. Direct Mount Chainrings for Bosch E-Bike Motors are machined with 7075-T6 aluminum at Wolf Tooth in Minnesota, USA.



  • Drop-Stop technology: On Wolf Tooth’s patented wide/narrow chainring, the wide side of the tooth has maximum contact on the drive side which spreads the load and improves chainring life. The narrow side allows clearance for mud and debris which reduces friction.

  • Alternating wide/narrow tooth pattern prevents chain derailment.


COMPATIBILITY



  • Chainring is compatible with Bosch G4 drive systems

  • 55 mm chainline

  • Available in two different tooth profiles for optimal performance based on your chain type. Use Drop-Stop B for all 9, 10, and 11spd chains or 12spd SRAM Eagle, SRAM Flattop Road or Transmission (T-Type), KMC, Connex or Wippermann chains.



DROP-STOP TECHNOLOGY


Wolf Tooth’s patented Drop-Stop® wide/narrow tooth profile delivers ultimate chain retention and mud shedding ability.



RECOMMENDATIONS



  • We recommend the use of a clutch style rear derailleur for the best chain security.

  • If you plan to ride in very muddy conditions, we recommend a chainguide or chainkeeper in addition to a clutch-type rear derailleur. Without these precautions, you may experience chaindrops and/or chainsuck.


 



SPECIFICATIONS


Weights: 32t • 65g | 34t • 68g
Material: 7075-T6 aluminum
Made in the USA




The Story


Wolf Tooth was founded to design and manufacture precision cycling products that emphasize function, performance, and reliability to meet the needs of our fellow racers and riders.


We are a group of cyclists in Minneapolis, Minnesota that spend a lot of time talking about bike components. Like most detail-obsessed riders, we're always looking for new products that could make our bikes lighter, faster, more versatile, or more reliable. We pride ourselves on delivering premium products of the highest quality.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 83405607171

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4.7 ★★★★★
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LadyG
Louisville, US
★★★★★ 1
All Gotchas, Gimmicks, and Grief
My husband broke the item in question, which was a Chemex coffee maker made of nothing but glass. It shattered full of coffee, so like a normal human he cleaned up the dangerous mess and threw it away. I put in a claim, and it said that I had to ship back the product. Believing that the Asurion process was as simple as stated, and reading the agreement that does mention that sometimes they'll require shipment of the item, but that they will review cases and use reasonable judgment, I contacted their chat, explaining that the requirement that I mail them a wet pile of shards of glass soaked in coffee (and a little bit of blood) was unsafe and unreasonable. I don't even know how I could do that in a way that would be safe for the people opening the packaging, or even to take it to the store. The shards of glass might puncture any plastic, and the wetness would soak through, plus there's the biohazard issue. Seems silly for a $47 product replacement to me. I figured any human would understand. First chat associate closed my case without even responding to me. I had to reopen it. The second one told me, "Yes, that is how your warranty works" as an answer to my "Hello, the last chat closed without me talking to anyone." I tried to explain the situation, and was told "If you call the hotline, maybe they'll help you." I call the hotline. The first person tells me tough, I have to mail it. I say it was thrown away. He says "AHA then it's lost! Your warranty doesn't cover lost things!" I say no, it's not lost, it was disposed of properly as shards of glass should be. I finally ask can I speak to someone else or a supervisor. He lies and says yes. I sit on hold for 20 minutes, never any wait time or any sort of indicator of when someone will talk to me. The phone call quality finally gets very horribly staticky, so I hang up and try again. Hallelujah, I get a decent human being who immediately says, "Oh, no, that's not reasonable! That is an unsafe thing to have to mail. I'll send it to the override department who should approve this because it's obvious that's not a normal thing to expect." Today I get an email that says: We can't approve your claim. We reviewed your NO SUPPORTING MANUFACTURER COFFEE MAKER claim. The product in your claim is not covered by your plan. As a result, we're unable to approve your claim. Nothing about the requirement to mail a biohazard, just the item isn't covered even though the item is absolutely covered. While I understand that loss prevention is important, this is a very small potatoes return and it isn't like I made this up. It would be easy to make me happy. I'm sure it has cost them more money to deny it than they would have lost covering the Chemex. I've bought multiple of their product replacement policies before. I never will again. They didn't offer for me to send a picture or anything. They just wasted hours of my time and sent a clearly AI-based answer, rather than treating me like a valuable customer.
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Reviewed in the United States on February 28, 2024
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Verified Purchase
Lisa R.
Battle Creek, US
★★★★★ 5
Fast!
Process was easy. Quickly issued a gift card for my refund.
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Reviewed in the United States on May 14, 2026
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Verified Purchase
vicki
Charlottesville, US
★★★★★ 5
Great price great plans
Anyways a pleasure to work with asurion. Great plans
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Reviewed in the United States on May 14, 2026
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William
Phoenix, US
★★★★★ 5
Quick and easy claim process.
I had problems with my Sous Vide and the manufacturer warranty expired 1 year ago. I made a claim with Asurion and they immediately sent me a return label. I returned the old Sous Vide and I was sent an amazon gift card to purchase a new Sous Vide within a couple of days.
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Reviewed in the United States on January 2, 2026
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Verified Purchase
Gwendolyn Adams
Lexington, US
★★★★★ 5
Quick responses!
Thanks, I do enjoy having things done, within a excellence procedure which usually follows a fairly quick response. P.S. thanks again this was really great.
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Reviewed in the United States on May 30, 2026

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