Geometry Racing Underslung System — Captive Series

$695.00

The Geometry Racing Captive Series relocates the factory rear caliper below the axle. The bracket stays captive during rear wheel removal and keeps the caliper positioned for reinstallation.

Models:

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The Geometry Racing Captive Series relocates the factory rear caliper below the axle. The bracket stays captive during rear wheel removal and keeps the caliper positioned for reinstallation.

Geometry Racing billet underslung caliper bracket with the OEM Nissin caliper and Core Moto brake line fitting — Billet bracket shown with the Core Moto brake line and the factory caliper you reuse.

Engineering Specs

Underslung bracket machined from 7075-T651 billet aluminum
Retains the factory rear caliper
Captive bracket stays in place during rear wheel removal
Available in black

Yamaha R1 track testing at Carolina Motorsports Park. Yamaha R6 track testing at Jennings GP.

What’s Included

Billet underslung rear caliper bracket
Custom Core Moto rear brake line
Replacement rear axle adjuster blocks
Captive rear wheel spacer

Reuse your factory rear caliper.

Fitment

Yamaha R1 (2015–2026)
Yamaha R6 (2018–2026)

Kawasaki target fitment

Ninja ZX-10R (2024–2026)
Ninja ZX-6R (636) (2024–2026)