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A rear brake upgrade kit that swaps the stock brakes on a Rawrr Mantis X or Mantis X Pro for a Brembo caliper, lever and braided-style brake line, plus a custom mounting bracket and rotor spacer. It is the first Brembo kit made for these e-motos, and the caliper is noticeably larger than stock. It suits owners who find the factory rear brake weak or vague and want more bite and modulation. The catch is that it is not a bolt-on: you supply a 220mm rotor, pick the correct spacer for your bike's hub, and bleed the system with DOT 4 yourself.
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Lowest price we've seen: $250.00 on Nov 12 at 805eMoto. Tracked across 1 store since Nov 12.
This kit upgrades the stock rear brakes on the Rawrr Mantis X or Mantis X Pro to a Brembo brake set. The brakes are much larger than stock. A 220mm rotor is required but not included. The Mantis X needs an upgrade to a 220mm rotor, which comes stock on the PRO.
The kit includes a custom bracket that mounts to the bike, the Brembo brake caliper, a brake line, and the brake lever. Because the Brembo caliper is thick, the 220mm rotor needs a spacer so the caliper clears the spokes. A spacer is included. Washers are also included, so you can adjust the caliper position on the mount to suit your rotor thickness.
The rotor hub on your bike is either a 44 BCD or 54 BCD bolt configuration. Pre-2025 Mantis X models are 44 BCD. 2025 Mantis X and Mantis Pro models are 54 BCD. Choose the spacer option that matches your bike. The brakes must be bled with DOT 4 brake fluid.