Exterior Components› Body Panels and Components

R1 Concepts

R1 12-18 BMW 228I Front Left Drilled & Slotted Black Brake Rotor

$120.17

SKU: R008 633-31121L

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The R1 Concepts 633-31121L is a drilled and slotted brake rotor designed for the left (driver) side. It is constructed from G3000 grade cast iron for strength and durability, with a black zinc finish for corrosion resistance.

The rotor features precision-drilled holes and a diamond slotted surface to improve braking performance. The vented design maximizes airflow for better cooling, and the drilled holes with a countersunk design help prevent cracking while enhancing heat dissipation. The diamond slots remove brake dust and debris, preventing pad glazing.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandR1 Concepts
Part NumberR008 633-31121L

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy