203 mm Rotor
203 mm Rotor
Low stock
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Bike compatibility
Listed fitment: stock Rawrr Mantis X with 203 mm rear rotor only. Not confirmed for Mantis X Pro, 72V Mantis or other models. If your rear rotor is 220 mm, use the separate 220 mm rotor kit. Verify bike model/year, rotor diameter and clearances before ordering. Have brake components installed, bled with DOT 4 fluid and tested by a qualified mechanic before riding.
Included in the kit
One enlarged rear brake caliper; one custom Rawrr Mantis X mounting bracket; mounting washers/spacers. Brake lever and hydraulic line inclusion depends on the selected variant options. Rotor is not listed as included.
Required extras
DOT 4 brake fluid is required for bleeding and is not listed as included. Check that your rear rotor is 203 mm; a separate 220 mm kit is needed for a 220 mm rear rotor.
Specifications
Fitment: Stock Rawrr Mantis X rear brake with 203 mm rotor
Caliper color: Black or Silver
Lever options: Black, Blue (+$10), Red (+$10), No Lever (-$30), or HSK/RCS (+$10)
Hydraulic line: Included or not included
Brake fluid: DOT 4 required for bleeding
Rotor: 203 mm setup; rotor not listed as included
Description
Rear brake upgrade kit for the stock Rawrr Mantis X set up for a 203 mm rear rotor. The supplier says the upgraded caliper is larger than stock and includes a custom Rawrr Mantis X mounting bracket, caliper, mounting washers and spacers. Use the option selectors to choose whether the lever and hydraulic line are included.
Fitment
Designed for the stock Rawrr Mantis X rear brake with a 203 mm rear rotor. Fitment for the Mantis X Pro, 72V Mantis or other models is not confirmed. If your rear rotor is 220 mm, choose the separate 220 mm rotor kit linked by the supplier. Check your current rotor size before ordering. A rotor is not listed as included.
Choose your setup
Lever: black, blue (+$10), red (+$10), no lever (-$30), or HSK/RCS lever option (+$10; see supplier photos). Caliper: black or silver. Hydraulic line: included or not included. Make sure your selected options match the parts already on your bike.
Installation
DOT 4 brake fluid is required to bleed the brake. Have brake components installed and bled by a qualified mechanic, and verify fitment and braking operation before riding.
Shipping
Ships from the United States. Shipping is calculated at checkout through Shopify Collective. The supplier typically ships in four days but currently warns of a seven-day lead time due to high demand. Blue and red special-order options may require an additional week. Carrier transit is separate, and delivery dates are not guaranteed.
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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