# Bicycle Inner Tube FISCHER Dunlop Valve 20" (50-80 cm) ETRTO compatible

**URL:** https://aio.lv/en/product--fischer-85127--3472372
**Data updated:** 2026-02-12 09:53 (EET)
**Category:** Bicycle accessories
**Manufacturer:** FISCHER
**Manufacturer code:** 85127
**EAN:** 4008153851278
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 10.99 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 9.08 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--fischer-85127--3472372

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.99 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

Inner bicycle tube by FISCHER with a Dunlop (Woods) valve, sized for 20-inch wheels and indicated as 50–80 cm circumference. Designed to fit tires meeting the corresponding ETRTO dimensions, it serves as a replacement tube for repairs and routine maintenance. Provides standard airtight performance and easy installation for urban, recreational or commuter bikes.

## Long description

The FISCHER Bicycle Inner Tube with a Dunlop (Woods) valve is designed for 20" wheels and indicated for tire circumferences of approximately 50–80 cm. Compatible with standard ETRTO tire dimensions that match this size range, the tube serves as a practical replacement for puncture repairs and scheduled maintenance. Constructed for common urban and recreational bicycle use, it provides reliable airtight performance and straightforward installation on compatible rims.
Advantages
This inner tube features a Dunlop valve that is simple to inflate with hand pumps and many floor pumps equipped with the appropriate adapter. The tube is manufactured to common quality standards for single-wall butyl inner tubes, offering good air retention and resistance to gradual leakage. Its 20" size and 50–80 cm circumference indication make it suitable for a range of small-wheel bicycles, allowing an easy, like-for-like replacement without modifying the wheel or tire. The material and valve placement support standard repair procedures and help minimize installation time.
Suitable for
 20" children's and folding bicycles with tires matching the stated ETRTO dimensions
 Small commuter or urban bikes that use Dunlop (Woods) valves
 Spare tube for roadside repairs and routine maintenance
Key specifications
 Wheel diameter: 20 inches
 Tire circumference indication: approximately 50–80 cm
 Valve type: Dunlop (Woods) valve
 Valve length: standard length suitable for typical 20" rims
 Material: butyl rubber (standard bicycle inner tube compound)
How to use
Before installation, check that the tire sidewall lists ETRTO dimensions compatible with a 20" inner tube in the 50–80 cm circumference range. Partially inflate the tube to give it shape, then insert it into the tire on one side of the rim. Work the tire bead back onto the rim, making sure the tube is not pinched between rim and bead. Fully inflate to the tire's recommended pressure as printed on the tire sidewall, and verify that the valve sits straight and the bead is seated evenly around the rim. After inflating, perform a visual and manual check for proper seating and air retention.
Usage recommendations
Use a correctly sized pump head or adapter for Dunlop valves to ensure a secure connection during inflation. When replacing an inner tube, inspect the tire and rim strip for sharp objects or damage to reduce the chance of repeat punctures. Maintain recommended tire pressure and periodically check for slow leaks to extend tube life.

## FAQ

### How much does the Bicycle Inner Tube FISCHER Dunlop Valve 20" cost, and is it available for purchase?

The price is 10.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 21 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 15.07.2026 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. 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 FISCHER 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 FISCHER 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/3472372/47511562_large.webp