Billet 4 Rr Caliper Indian Scout Black
Harrison Engineering was, back in 1986, one of the first companies to design and develop a multi-piston aftermarket caliper for Harley-Davidson motorcycles. Each fully progressive 4 or 6 Piston caliper is precisely CNC machined from lightweight blocks of aircraft quality aluminum alloy. To keep the internal tolerances to a minimum, the caliper pistons are machined from special low expansion aluminum alloy and have a hard anodized finish that has the same anti-wear properties as hardened steel. For maximum performance the calipers have one pad for each piston. Harrison claims this gives a more ‘leading edge bite' on the disc than any two pad, or differential bore calipers. It is also especially beneficial in wet conditions, because the first set of pads sweep water off the disc, while the following 2 or 4 pads are still ‘biting' on the disc. That removes the effect of the calipers ‘skating' on the disc, and then braking sharply and suddenly when the disc becomes dry. They are truly progressive calipers, with a direct and sensitive relation between the amount of lever pressure, and the amount of braking power. These show polished or black anodized calipers not only have ultimate stopping power, they also have the ultimate looks, and are available for almost all models. The front calipers bolt straight to the front fork bottom leg, and the rear sets include the mounting bracket. Stainless steel shims, to space the caliper to the disc, and mounting bolts are included with each kit. The front as well as the rear sets are available in both 4 or 6 piston versions, as well as polished or black anodized. Matching design brake rotors can be found elsewhere in this catalogue. All Harrison Billet calipers are approved, and come with a limited lifetime warranty on piston wear.
The estimated dispatch time is displayed on each product page and depends on the product’s stock location:
- In stock: dispatch within 1–3 business days
- European stock: dispatch within 2–3 business days
- USA stock: estimated dispatch within 3–5 weeks
- Products with a specific lead time: estimated dispatch according to the timeframe displayed on the product page
Once your order has been dispatched, you will receive a confirmation email with tracking information.
Estimated carrier transit times are:
- France: 1–5 business days
- Most European destinations: 5–10 business days
- Countries outside the European Union: delivery times may vary depending on the destination and customs clearance
The dispatch estimate and carrier transit time are separate.
Compatibility
You can verify compatibility in two ways:
- Use the vehicle selector on the product page to check whether the part matches your motorcycle.
- Review the fitment table for the full list of compatible models and years.
Some parts may require additional components, modifications or a specific existing setup. Always read the fitment notes and product description before ordering.
Still unsure? Contact us with:
- motorcycle make and model;
- model year;
- exact version or trim;
- current modifications;
- product reference or link.
Our team will help you confirm compatibility before ordering.
Eligible items may be returned within 30 days of delivery.
To be accepted, the item must be:
- unused and uninstalled;
- in its original condition;
- returned with its original packaging, labels and accessories.
Parts that have been installed, damaged or modified cannot be returned.
Please contact us before sending an item back. Returns sent without prior authorization may not be accepted.
Return shipping costs remain the customer’s responsibility unless the item received is incorrect, damaged or defective.
Customs Duties & Taxes
European Union
Orders delivered within the European Union are shipped from France. No import duties are charged upon delivery.
Countries outside the European Union
Local VAT, customs duties and carrier clearance fees may apply. These charges are determined by the destination country and remain the customer’s responsibility.
Payment Options
We accept major credit and debit cards, PayPal and the installment payment methods displayed at checkout.
Eligible orders may be paid in 3 or 4 installments, subject to the payment provider’s approval and applicable limits.
Get the latest updates, exclusive promotions, and Harley Davidson tips straight to your inbox. Be the first to know about special offers and new parts available!