# Inner Tube AUTHOR AT-MTB-29" AV40 for 29x1.95–2.35 tyres, 40 mm Schrader valve (black)

**URL:** https://aio.lv/en/product--author-37229001--10721159
**Data updated:** 2026-02-12 22:04 (EET)
**Category:** Bicycle accessories
**Manufacturer:** AUTHOR
**Manufacturer code:** 37229001
**EAN:** 8590816036291
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 5.49 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 4.54 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--author-37229001--10721159

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Friday | free |
| Pickup points | 26.06.2026 | 1.99 EUR |
| Courier delivery to door | 26.06.2026 | 4.99 EUR |

## Summary description

Replacement inner tube AUTHOR AT-MTB-29" AV40 designed for 29" mountain bike tyres with widths from 1.95 to 2.35 inches. Equipped with a 40 mm Schrader (AV) valve for standard pump compatibility. Durable black rubber construction provides airtight sealing and simple installation for on‑road and off‑road use, suitable for repairs and spare carry.

## Long description

AUTHOR AT‑MTB‑29" AV40 is a replacement inner tube designed for 29" mountain bike tyres with widths from 1.95 to 2.35 inches. The tube is made of durable black rubber and fitted with a 40 mm Schrader (AV) valve for compatibility with standard pumps and inflators. It provides airtight sealing and straightforward installation, suitable for routine repairs, roadside fixes and as a spare for off‑road rides.
Advantages
The inner tube features robust rubber construction that resists punctures and provides reliable air retention under varied riding conditions. The 40 mm Schrader valve ensures easy inflation with commonly available pumps and gas cartridges, while the 29" sizing and tyre width range make it compatible with most modern mountain bike setups. Lightweight and compact when folded, the tube is convenient to carry in a saddlebag or backpack.
Suitable for
 Repairing punctures on 29" mountain bike tyres with width 1.95–2.35"
 Keeping as a spare tube for trail rides and commuting
 Quick roadside replacement during off‑road or cross‑country trips
 Workshops and bike shops stocking common MTB spares
Key specifications
 Tyre diameter compatibility: 29 inches
 Tyre width compatibility: 1.95–2.35 inches
 Valve type and length: Schrader (AV), 40 mm
 Material: rubber (black)
 Intended use: mountain bike (MTB) inner tube
How to use
Inspect the tyre and rim for embedded debris before installing the tube. Partially inflate the inner tube to give it shape, insert it into the tyre, align the valve with the rim hole and seat the tyre bead evenly around the rim. Inflate gradually to the tyre manufacturer’s recommended pressure while checking that the bead sits correctly and there are no pinches. After installation, recheck the tyre pressure and perform a short test ride to confirm airtightness.
Usage recommendations
Carry a spare tube of the same specification when riding off‑road. Use a pump or inflator compatible with Schrader valves and avoid overinflation beyond the tyre’s recommended pressure. Regularly inspect tyres and rim strips to reduce the risk of repeated punctures.

## FAQ

### How much does the Inner Tube AUTHOR AT-MTB-29" AV40 cost, and is it available for purchase?

The price is 5.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 100000 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 Friday 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 AUTHOR 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 AUTHOR 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/10721159/59789948_large.webp