Brake Upgrade Kit | Ultra Bee Brake — V2
Brake Upgrade Kit | Ultra Bee Brake — V2
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Description
This kit includes...
OEM Ultra bee rear break
220mm // 3.1mm rotor
Brake Adapter
FREE Moonworx forged reservoir cap
Will work if your stock rotor size is 180 mm. If it's 203 dm us we can get it to fit!
The Moonworx Ultra Brake Kit is a high-performance rear brake upgrade designed specifically for Super73 electric bikes. Delivering performance typically found in significantly more expensive braking systems, Featuring an Ultra Bee caliper, oversized rotor, and custom adapter, this kit delivers significantly increased stopping power and improved resistance to brake fade during aggressive riding. The 220mm rotor option will decrease brake performance by around 15%, but will also be less noisy and easier to install.
In-stock orders dispatch within 48 hours, excluding weekends and holidays. All preorders are excluded.
⚠️ Liability & Terms of Purchase
By purchasing this product, you agree to our Terms and Conditions and Liability Waiver. Moon Worx is not responsible for any damage, injury, or loss resulting from the installation, modification, or use of this product. Installation and use are at your own risk. This product is intended for use by experienced riders and installers familiar with e-bike components. Always follow local laws and regulations regarding e-bike modifications.
Shipping & Support
U.S. and Canada only. In-stock orders dispatch within 48 hours, excluding weekends and holidays. All preorders, custom and made-to-order items are excluded and follow their stated product-page timelines. Carrier transit time is additional.
Contact hours: Monday–Friday, 9 a.m.–5 p.m. Eastern Time.
See our shipping policy for real carrier and lead-time details by product.
Change-of-mind returns are not accepted. Orders can be cancelled before they ship (made-to-order items: before production starts). If your order arrives damaged, defective, or is not the item you ordered, we send a replacement or a refund once your claim is approved. See our refund, cancellation & exchange policy for the full terms.
Questions about fitment, your order, or a build? Contact our support team.
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