In Stock Now

Ready to ship. Genuine RCB parts currently in stock.

Why RCB Motorcycle Performance Parts

30-Year Engineering

Three decades of racing-led design

TRACK TESTED

Proven for daily dependability

CNC Precision

Tight tolerances for a perfect fit

Billet Aluminium

High-grade aluminium for strength

Rider Trusted

Chosen by riders and race teams

Genuine Parts

Direct from the manufacturer

Manufacturer Warranty

Manufacturer coverage on every RCB part

Worldwide Shipping

Tracked international delivery

Fast Dispatch

Quick dispatch on in-stock orders

Secure Payment

Encrypted, protected checkout

Frequently Asked Questions

How to identify genuine RCB/Racing Boy parts.

Buy through RCB or an authorised seller and check the product markings, packaging and part information. If authenticity is uncertain, provide the exact product details to RCB or an authorised distributor for verification.

RCB S1 vs E3 master brake pump: differences, fitment and use cases.

S1 and E3 are different RCB master-cylinder product lines. Their specifications and fitment can vary by application, so compare the exact part numbers and product specifications before purchase.

How to set RCB suspension preload, rebound and compression.

Make one adjustment at a time and record the original setting. Preload affects ride height and sag, while rebound and compression control suspension movement. Use the specific RCB model's adjustment instructions and range.

How rider weight and passenger use affect RCB shock setup.

Changes in rider, passenger and luggage load affect suspension sag and ride height. The shock should be set for the actual load and intended use rather than relying on one setting for every riding condition.

RCB suspension versus stock shock: what changes?

The differences depend on the exact RCB and original-equipment models. Potential differences include construction, spring specification and adjustment options. Compare the product specifications for the exact application.

Which RCB brake master-cylinder size should I choose: 12.7 mm, 14 mm or 17 mm?

Master-cylinder bore size affects lever effort, travel and brake feel. The correct size depends on the caliper and complete brake-system specification. Confirm the RCB application and compatibility before choosing a bore size.