# Rear hydraulic flat-mount disc brake caliper Shimano ALTUS BR-UR300 for bicycles

**URL:** https://aio.lv/en/product--shimano-4524667775669--11507370
**Data updated:** 2026-02-15 12:43 (EET)
**Category:** Bicycle accessories
**Manufacturer:** Shimano
**Manufacturer code:** 4524667775669
**EAN:** 4524667775669
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 27.99 €
**Prices and availability valid until:** 2026-07-22 23:59
**Price without VAT (21%):** 23.13 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--shimano-4524667775669--11507370

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 30.06.2026 | free |
| Pickup points | 03.07.2026 | 1.89 EUR |
| Courier delivery to door | 03.07.2026 | 4.99 EUR |

## Summary description

Shimano ALTUS BR-UR300 rear hydraulic flat-mount disc brake caliper designed for bicycles. This caliper fits flat-mount frames and provides hydraulic braking for rear wheel applications. It is intended as a replacement or upgrade part, compatible with Shimano hydraulic systems of the ALTUS BR-UR300 series. Practical for everyday riding and commuting, it ensures consistent braking performance and easier modulation compared with mechanical options.

## Long description

The Shimano ALTUS BR-UR300 rear hydraulic flat-mount disc brake caliper is a replacement caliper designed specifically for rear-wheel hydraulic braking on bicycles with flat-mount frame interfaces. Built to integrate with Shimano hydraulic brake systems in the ALTUS BR-UR300 family, the caliper provides hydraulic actuation and pad-based friction to slow and stop the rear wheel. It is intended for everyday riding and commuting where predictable stopping power and smooth modulation are required.
Advantages
The BR-UR300 caliper offers hydraulic braking consistency with improved modulation compared with mechanical options, delivering steady lever feel and controlled deceleration. Its flat-mount design allows a low-profile fit on compatible frames, simplifying installation and alignment. The caliper architecture supports standard disc rotor sizes used on many city and trekking bikes and is serviceable for pad replacement, helping maintain performance over time.
Suitable for
Rear-wheel hydraulic braking on bicycles with flat-mount mounts
Commuting and urban riding where reliable stopping is required
Replacement or upgrade within compatible Shimano hydraulic systems
Maintenance projects involving pad changes or caliper servicing
Key specifications
Configuration: rear hydraulic disc brake caliper, flat-mount
Actuation: hydraulic piston-based operation
Compatibility: designed to work with Shimano ALTUS BR-UR300 series hydraulic systems and commonly used disc rotors on city/trekking bikes
Mounting: flat-mount interface for compatible frames
Serviceability: replaceable brake pads and bleedable hydraulic circuit
How to use
Install the caliper on the frame's flat-mount interface using the appropriate mounting hardware and torque specifications for your frame and rotor size. Center the caliper over the rotor and secure the mounting bolts, then verify pad clearance and rotor alignment. If replacing an existing caliper, follow Shimano’s recommended bleed procedure to remove air from the hydraulic line and ensure firm lever feel. After installation and bleeding, test braking performance at low speed to confirm correct operation before regular use.
Usage recommendations
Use compatible Shimano mineral oil for bleeding and follow manufacturer instructions for pad bedding and torque values. Regularly inspect pads and rotor for wear, and service the caliper and hydraulic system at intervals appropriate to riding conditions to maintain consistent braking performance.

## FAQ

### How much does the Shimano ALTUS BR-UR300 rear hydraulic flat-mount caliper cost, and is it available for purchase?

The price is 27.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 30.06.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Shimano products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Shimano service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

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