# Handlebar U-Bolt Base RAM Mounts for rails 0.5"–1.25" diameter, aluminium, 2.54 cm ball

**URL:** https://aio.lv/en/product--oem-ram-b-231zu--11672419
**Data updated:** 2026-01-08 10:40 (EET)
**Category:** Smartphone & Tablet Mounts
**Manufacturer:** OEM
**Manufacturer code:** RAM-B-231ZU
**EAN:** 793442002755
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 40.49 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 33.46 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--oem-ram-b-231zu--11672419

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.99 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

Handlebar U-Bolt Base from RAM Mounts for attaching accessories to round rails with diameters from 0.5" to 1.25". Made of aluminium with a 2.54 cm (1") rubber-coated ball for compatibility with standard RAM arms. Black finish. Suited for mounting phones, GPS units or cameras on bicycles, motorcycles and other tubular bars; provides a secure, vibration-resistant connection.

## Long description

The RAM-B-231ZU is a handlebar U-bolt base designed to secure a 1" (2.54 cm) B-size rubber ball at right angles to the mounting rail. The zinc-coated metal U-bolt fits rails with diameters from 0.5" to 1.25". The kit includes black cover caps for the exposed U-bolt ends and a composite adapter that narrows the rail fit to a minimum width of 0.5". The base is made of aluminium and comes in black finish; product weight is 130 g.
Advantages
The aluminium base provides a durable, lightweight mounting platform while the zinc-coated U-bolt resists corrosion on exposed rails. The included composite adapter allows the same mount to accommodate narrower rails without additional parts. Black cover caps protect exposed threads and improve visual integration with handlebars or rails.
Suitable for
Attaching RAM 1" (2.54 cm) B-size ball mounts to bicycle or motorcycle handlebars
Mounting accessories on tubular rails or bars with diameters from 0.5" to 1.25"
Situations that require a compact, lightweight mounting base for navigation, phone or camera holders
Key specifications
Model: RAM-B-231ZU
Ball diameter: 1" (2.54 cm)
Rail diameter compatibility: 0.5"–1.25" (12.7–31.75 mm)
Material: Aluminium (base); zinc-coated steel (U-bolt); composite adapter
Colour: Black
Weight: 130 g
MPN: RAM-B-231ZU
EAN: 793442002755
How to use
Position the aluminium base so the B-size rubber ball sits at right angles to the rail. Place the U-bolt around the handlebar or rail and thread it through the base, adding the composite adapter if the rail width is near the 0.5" minimum. Tighten the nuts evenly until the base is secure and the ball does not rotate freely on the rail. Fit the supplied black cover caps over the exposed U-bolt ends for a finished appearance.
Usage recommendations
Check that the selected rail diameter falls within the 0.5"–1.25" range and that all fasteners are tightened to prevent movement. Avoid overtightening to prevent damage to the rail or adapter. Periodically inspect the zinc-coated U-bolt and cover caps for corrosion or wear, especially in wet or salty environments.

## Specifications

| Feature | Value |
|---|---|
| Ball diameter | 25.4 mm |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.13 kg |

### Design

| Feature | Value |
|---|---|
| Material | Aluminium |
| Product colour | Black |

## FAQ

### How much does the RAM Mounts Handlebar U-Bolt Base RAM-B-231ZU cost, and is it available for purchase?

The price is 40.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 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 03.07.2026 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 OEM 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 OEM 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: weight, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/11672419/66980821_large.webp