# Chain Tensioner Rollers Okbaby for Rohloff derailleur with machine bearings, set of 2

**URL:** https://aio.lv/en/product--okbaby-rol-8251--12402590
**Data updated:** 2026-04-29 13:50 (EEST)
**Category:** Bicycle accessories
**Manufacturer:** Okbaby
**Manufacturer code:** ROL-8251
**EAN:** 4250307402113
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 20.99 €
**Prices and availability valid until:** 2026-08-03 23:59
**Price without VAT (21%):** 17.35 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--okbaby-rol-8251--12402590

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.89 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

Set of two Okbaby chain tensioner rollers designed for use with Rohloff derailleurs. Each roller features machine-type bearings for smooth rotation and reliable chain guidance. Intended for replacement or maintenance of drivetrain tensioning components to restore proper chain alignment and reduce noise and wear in bicycle gear systems.

## Long description

Set of two Okbaby chain tensioner rollers designed specifically for use with Rohloff derailleurs. Each roller is fitted with machine-type bearings to provide smooth rotation and consistent chain guidance. The pair is intended as a replacement or maintenance item to restore correct chain alignment, reduce drivetrain noise and limit wear on the chain and pulley surfaces.
Advantages
These Okbaby rollers use precision machine bearings that lower friction and enable steady rotation under load. The dimensions and bearing type are chosen to match the requirements of Rohloff-compatible tensioner assemblies, helping to maintain reliable shifting and tension control. Supplied as a matched pair, the rollers facilitate even wear and straightforward replacement of worn components.
Suitable for
 Replacement of worn or noisy tensioner rollers on Rohloff-compatible derailleurs
 Routine drivetrain maintenance where pulley wear affects chain alignment
 Repair projects restoring correct chain tension and reducing drivetrain friction
When it may not be suitable
This roller set is intended for Rohloff-compatible tensioner systems; it may not fit derailleurs or tensioners with non-standard mounting dimensions or different pulley designs. If the original rollers were sealed cartridge bearings, ceramic, or a different diameter, confirm compatibility before installation.
Key specifications
 Quantity: set of 2 rollers
 Bearing type: machine-type (precision bearings for rotation)
 Application: chain tensioner/pulley for Rohloff-compatible derailleur assemblies
 Function: chain guidance and tensioning to reduce noise and wear
How to use
Remove the worn tensioner rollers from the derailleur according to the manufacturer's service instructions, taking care to note the orientation and any spacers. Fit each new Okbaby roller in the same position, ensuring bearings seat correctly and fasteners are torqued to the recommended specification. After installation, cycle through the gears and check chain alignment and tension; make minor adjustments if necessary to achieve smooth operation.
What to consider before purchase
 Confirm compatibility with your Rohloff-compatible derailleur or tensioner model and mounting dimensions
 Verify that machine-type bearings match the performance and maintenance preferences for your drivetrain
 Inspect existing pulley diameter and width to ensure the new rollers provide the same chain path
Usage recommendations
For reliable performance, install the rollers as a matched pair and inspect them periodically for play or bearing noise. Use correct torque values on fasteners and keep the drivetrain clean; replacing both rollers at the same time helps maintain consistent chain line and prolongs service life.

## FAQ

### How much does the Okbaby chain tensioner rollers for Rohloff, set of 2 cost, and is it available for purchase?

The price is 20.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 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 23.07.2026 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 Okbaby 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 Okbaby 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/12402590/68687083_large.webp