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Topstar floor castors for Sitness Racer RS office chair, 11 mm stem diameter, 5 pieces
€31,87
incl. VAT
€26,34 excl. VAT (21%)
Price excluding shipping costs: €4,95 incl. VAT for orders under €49,95. From €49,95 we ship for free.
✗ Not in stock
Expected from supplier: week 48 (23 November - 29 November 2026)
Brand: Topstar
| Article number | 77400107 |
|---|---|
| EAN | 4014296514864 |
| OEM number | 6991-4 |
| Weight | 0,600 kg |
|---|---|
| Dimensions | B: 180 mm × H: 80 mm × D: 120 mm |
| Country of origin | Duitsland |
| Customs tariff (HS code) | 94019980 |
| VAT rate | 21% |
This is why Dex likes this article
Give your Sitness Racer RS new castors that are gentle on parquet and tiles. These specially designed wheels roll smoothly without scratching, making them ideal for hard floors.
When do you choose this product?
When do you need new office chair castors?
Floor castors on office chairs wear down over time and can start to squeak, stick or even break. If you notice your chair no longer rolls smoothly or is damaging your floor, it is time for a replacement. These Topstar castors are specifically designed for the Sitness Racer RS office chair.
Why choose these specific castors?
These castors have a stem diameter of 11 mm and are only suitable for the Topstar Sitness Racer RS. The specially designed speiken design ensures a stable connection with the chair. You get a complete set of 5 pieces, so you can replace all the castors at once for optimal performance.
Suitable for hard floors
These castors are specially made for parquet, tiles and stone floors. They protect your floor against scratches and damage that can be caused by worn or incorrect castors. The material is tailored to hard surfaces for smooth rolling without leaving marks behind.
Practical replacement tip
Always check before ordering that your office chair is genuinely a Topstar Sitness Racer RS, as these castors are model-specific. Where possible, measure the stem diameter of your current castors - it should be 11 mm. Preferably replace all five castors at the same time, even if only one is defective, for even rolling and optimal stability of your office chair.
Floor castors on office chairs wear down over time and can start to squeak, stick or even break. If you notice your chair no longer rolls smoothly or is damaging your floor, it is time for a replacement. These Topstar castors are specifically designed for the Sitness Racer RS office chair.
Why choose these specific castors?
These castors have a stem diameter of 11 mm and are only suitable for the Topstar Sitness Racer RS. The specially designed speiken design ensures a stable connection with the chair. You get a complete set of 5 pieces, so you can replace all the castors at once for optimal performance.
Suitable for hard floors
These castors are specially made for parquet, tiles and stone floors. They protect your floor against scratches and damage that can be caused by worn or incorrect castors. The material is tailored to hard surfaces for smooth rolling without leaving marks behind.
Practical replacement tip
Always check before ordering that your office chair is genuinely a Topstar Sitness Racer RS, as these castors are model-specific. Where possible, measure the stem diameter of your current castors - it should be 11 mm. Preferably replace all five castors at the same time, even if only one is defective, for even rolling and optimal stability of your office chair.
Dex finds with this article
Specifications according to the manufacturer
Office swivel chair "Sitness RS"
Modern "gaming chair" - designed with ergonomic considerations for long periods of sitting
• Upholstery: "Lotos" faux leather
• stepless seat height adjustment with top lift
• backrest with mesh/padding combination in two-tone design, height adjustable via notch mechanism
• high, contour-shaped backrest with lateral guidance for relaxed sitting
• large bowl-shaped seat with Sitness joint for three-dimensional mobility of the seat surface, in two-tone design
• point synchronous mechanism for synchronous adjustment of seat and backrest angle
• body weight setting individually adjustable, steplessly lockable
• large and stable black plastic base
• with load-dependent braked safety twin castors for carpeted floors in speckled design
• seat dimensions: (W)500 x (D)480 x (H)420 - 550 mm
• armrest height: 600 mm
• including headrest and armrests: type P4 - height adjustable
• other colours available on request!
Note: Products listed as accessories are not part of the chair and are not included in the scope of delivery!
Sitting recommendation: unlimited use
- Recommended for intensive use in business / private environments
- Use without restriction
- high sitting comfort
- high ergonomic specification
- EN 1335 1-3 and GS tested
Modern "gaming chair" - designed with ergonomic considerations for long periods of sitting
• Upholstery: "Lotos" faux leather
• stepless seat height adjustment with top lift
• backrest with mesh/padding combination in two-tone design, height adjustable via notch mechanism
• high, contour-shaped backrest with lateral guidance for relaxed sitting
• large bowl-shaped seat with Sitness joint for three-dimensional mobility of the seat surface, in two-tone design
• point synchronous mechanism for synchronous adjustment of seat and backrest angle
• body weight setting individually adjustable, steplessly lockable
• large and stable black plastic base
• with load-dependent braked safety twin castors for carpeted floors in speckled design
• seat dimensions: (W)500 x (D)480 x (H)420 - 550 mm
• armrest height: 600 mm
• including headrest and armrests: type P4 - height adjustable
• other colours available on request!
Note: Products listed as accessories are not part of the chair and are not included in the scope of delivery!
Sitting recommendation: unlimited use
- Recommended for intensive use in business / private environments
- Use without restriction
- high sitting comfort
- high ergonomic specification
- EN 1335 1-3 and GS tested
Specifications
Version
Spoke design, black
Manufacturer
Hazard information
No hazard classification applies according to the available manufacturer and supplier information.
This product contains no substances classified as hazardous under the CLP Regulation.
This product contains no substances classified as hazardous under the CLP Regulation.
Product information checked by XtremeOffice
This page has been compiled based on information from the manufacturer and our supplier. Last checked on 30-10-2026.
This page has been compiled based on information from the manufacturer and our supplier. Last checked on 30-10-2026.
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