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e*thirteen Helix Plus Cassette - 12-Speed, 9-50t, Black

- We ship super fast! We have retail stores in California, Nevada & Pennsylvania that ship out product daily.
- This is an authentic e*thirteen product with all retail packaging from a real bike shop with a 30 day return policy.
- We are authorized dealers for e*thirteen and all e*thirteen products come with the full warranty.
- You can trust us! Have a look at our incredible feedback / customer reviews.


Helix Plus 12-Speed 9-50T cassettes are a drivetrain upgrade on a budget for analog and e-bikes alike. Engineered to deliver Helix shifting precision, and cross compatibility with all SRAM and Shimano 12-speed drivetrains, the Helix Plus is also e*spec rated to withstand the rigors of e-MTB. e*thirteen's exclusive 9 tooth highest gear cog, provides a 556% gear range, and lets you step down one chainring size, while keeping the same top end gearing, meaning both better ground clearance and an overall lighter drivetrain.
  • Features 10 steel cogs and a 42-50t aluminum cluster that can be replaced as needed
  • Cross-compatible with Shimano and SRAM drivetrains, including electronic shift systems
  • XD driver compatible
  • e*spec rated for use on e-bikes
  • Engineered with improved durability of 2 part steel and aluminum assembly
Item Specifications
Cassette Body TypeSRAM XD 11/12 Speed
Cassette Body TypeSRAM XDR
Cassette Cogs9, 11, 13, 15, 17, 20, 23, 27, 31, 36, 42, 50
ColorBlack
Defined ColorBlack
Designed for ebikeYes
Drivetrain Speeds12
Range9-50
Weight410

MPN: FW2HPA-100 - e*thirteen - Helix Plus 12-Speed Cassette - Cassettes

United States shipping:
Everything ships for FREE to the United States. The free service is either USPS or FedEx.

International shipping:
This item ships internationally for a calculated rate, please see above "Shipping and payments" tab to select your desired country and see the price. You will have the option to select USPS Priority mail and on some items USPS Express as well. Both services include tracking. *Please be aware, buyer is responsible for any customs / import fees*

THIS ITEM WILL SHIP WITHIN 0-2 BUSINESS DAYS AFTER PURCHASE, YOU WILL RECEIVE A TRACKING NUMBER ONCE YOUR ITEM SHIPS. If you need your order to arrive extremely fast please contact us before purchasing.

We have a 30 day return policy on all new items we sell and do everything we can to make returns/exchanges easy. We want our customers to be happy, it's that simple.

If you are not satisfied with your purchase send it back for a full refund, nice and easy. We only request that the item is in its original packaging and in the same condition as you received it. You can simply send the item back to the address it came from, or use eBay's easy returns to create a shipping label. To use eBay's easy returns: View your purchase in the Purchase History section of your "My eBay" and select the return option in the drop down menu on the right. eBay will walk you through creating a label from there.

If you feel we made a mistake or the item was damaged in shipping, please contact us and we will make it right immediately. If the error was on our end we will send you a pre-paid shipping label to send the item back and handle the refund right away.

We are here to help! Feel free to message us using the eBay message system with any questions at all & we will respond extremely fast!

We do our best to reply to messages as quickly as possible, most of them we reply to within a few hours or even minutes. You are also welcome to call us but we can't list our phone number here because of eBay's stupid policies... so you'll have to find our phone number with a magical search engine machine of your choice. Oh & please stop by one of our shops! We are out East at 3063 Columbia Ave. - Lancaster PA, 17603 & out West at 3225 Grande Vista Dr. - Newbury Park, CA 91320 & 165 Design Place, #105 - Sparks, NV, 89441