# Inner tube WELDTITE DR Sludge puncture protection 27.5"/650B x 1.75–2.10 Presta valve (WLD-04026)

**URL:** https://aio.lv/en/product--weldtite-wld-04026--11852621
**Data updated:** 2026-03-09 17:28 (EET)
**Category:** Bicycle accessories
**Manufacturer:** WELDTITE
**Manufacturer code:** WLD-04026
**EAN:** 5013863040262
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 16.49 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 13.63 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--weldtite-wld-04026--11852621

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

WELDTITE DR Sludge is an inner tube for 27.5"/650B wheels sized 1.75–2.10 that includes puncture-protection fluid. Designed for Presta valve rims, the tube offers standard replacement compatibility for mountain and hybrid bikes in the specified tyre width range. The integrated anti-puncture liquid helps seal small holes and reduce roadside repairs, making it suitable for everyday riding and off-road use.

## Long description

WELDTITE DR Sludge is an inner tube designed for 27.5"/650B wheels with tyre widths from 1.75 to 2.10 inches and a Presta valve. The tube includes a factory-applied puncture-protection fluid that helps seal small punctures and slow leaks, reducing the need for immediate roadside repairs. It is compatible with mountain and hybrid bike tyres within the specified size range and fits rims that accept Presta valves. The product is intended as a direct replacement inner tube offering standard performance and added puncture mitigation for everyday and off-road riding.
Advantages
The integrated anti-puncture fluid in the WELDTITE DR Sludge inner tube provides continuous protection by sealing minor holes and slow punctures as they occur, which can decrease the number of tube changes and roadside interventions. The tube is sized specifically for 27.5"/650B tyres in the 1.75–2.10 range, ensuring proper fit with commonly used mountain and hybrid tyre profiles. A Presta valve configuration ensures compatibility with rims and pumps that use this valve type, and the tube maintains the flexibility and weight characteristics expected from a standard butyl inner tube.
Suitable for
 Replacement inner tube for 27.5"/650B mountain bikes
 Use with hybrid bikes that accept 27.5"/650B tyres
 Everyday commuting and light off-road trails where puncture protection reduces maintenance
 Rims and pumps compatible with Presta valves
Key specifications
 Wheel size: 27.5" / 650B
 Tyre width range: 1.75–2.10 inches
 Valve type: Presta
 Material: butyl inner tube with integrated puncture-protection fluid
 Intended use: mountain and hybrid bike tyres within stated width range
How to use
Inspect the tyre and rim for embedded objects before fitting. Slightly inflate the inner tube to give it shape, insert the Presta valve through the rim hole, and seat the tube evenly inside the tyre. Install the tyre bead on the rim and fully inflate to the tyre manufacturer’s recommended pressure, checking that the valve remains straight and the tyre bead is seated. After initial inflation, ride briefly and recheck pressure; the puncture-protection fluid will coat the inside of the tyre and seal small holes during use.
Usage recommendations
For best performance, ensure the tyre and rim are clean and free of sharp debris before installation. Use a pump compatible with Presta valves and inflate to the pressure range specified by the tyre manufacturer. The integrated puncture fluid is intended to seal small punctures and slow leaks but is not a substitute for repair or replacement in the event of large cuts or sidewall damage. Regularly inspect tyre condition and tube integrity as part of routine bike maintenance.

## FAQ

### How much does the Inner tube WELDTITE DR Sludge 27.5" 1.75–2.10 Presta cost, and is it available for purchase?

The price is 16.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 30 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 06.07.2026 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 WELDTITE 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 WELDTITE 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

https://aio.lv/img/cache/product/11852621/67250977_large.webp