⟲ 360° — drag meThe facts.
| Brand | OZ |
|---|---|
| Model | Gass RS-A |
| Material | Forged aluminium |
| Finish | Anodised (gloss black, techno black, techno gold, titanium) |
| Contents | Front wheel, rear wheel, bearings, aluminium angle valves, spacers (where required), sprocket carrier |
| Fitment | Kawasaki ZX-10 R / ZX-10 RR (2021-2026) |
| Part numbers | H31853507 + H61286007 |
| Country of manufacture | Italy |
DescriptionThe whole story▼
Born on the WorldSBK circuit and engineered for the road, the OZ Gass RS-A forged aluminium wheel set delivers race-proven safety standards to every Kawasaki ZX-10 R rider. The dramatic reduction in rotating mass sharpens steering response, improves cornering stability, and raises the bar for every lap — whether that lap is a mountain pass or a circuit session.
Key Features
- Forged aluminium construction: exceptional strength-to-weight ratio reduces rotating mass for noticeably faster acceleration and more precise handling.
- Race and road certified: developed directly from WorldSBK competition hardware and validated for full road use — safety is never a compromise.
- Reduced unsprung weight: lighter wheels allow the suspension to respond more quickly, improving tyre contact and cornering confidence at all speeds.
- Four anodised colour options: gloss black, techno black, techno gold, and titanium — each finish applied for durability as well as aesthetics.
- Complete set: includes front and rear wheel, premium-grade bearings, aluminium angle-type valves, and spacers where required. A sprocket carrier is also included — note that the original rear sprocket is not compatible and must be replaced.
- Made in Italy: manufactured at OZ's Italian facility to the exacting quality and dimensional tolerances expected of a motorsport-grade wheel.
WorldSBK Heritage, Street-Legal Safety
OZ developed the Gass RS-A specifically to bridge the gap between professional Superbike racing and everyday road riding. The forged aluminium process — the same technology underpinning OZ's WorldSBK programmes — produces a wheel that is both stiffer and lighter than a cast equivalent, which translates directly into sharper turn-in, reduced braking distances, and a more connected feel through the handlebar. The anodised finish protects the alloy from corrosion and road contamination without adding unnecessary weight, ensuring long service life under demanding conditions.
Performance on Road and Track
For riders who use the ZX-10 R on track days as well as public roads, the Gass RS-A set removes the need to swap wheels between environments. The design balances outright stiffness — which is critical for consistent tyre loading during hard cornering — with enough compliance to remain safe and predictable on imperfect road surfaces. The result is a wheel that rewards an experienced rider without punishing everyday use.
Fitment and Compatibility
This wheel set is a direct replacement for the standard wheels on the Kawasaki ZX-10 R and ZX-10 RR, model years 2021 through 2026. The set includes all necessary bearings, aluminium angle valves, and spacers (where required). A sprocket carrier is supplied; the original Kawasaki rear sprocket is not compatible with this carrier and must be sourced separately. No additional machining or modification is required for fitment.
Specifications
- Brand: OZ
- Model: Gass RS-A
- Material: forged aluminium
- Finish: anodised (gloss black / techno black / techno gold / titanium)
- Contents: front wheel, rear wheel, bearings, aluminium angle valves, spacers (where required), sprocket carrier
- Fitment: Kawasaki ZX-10 R / ZX-10 RR (2021-2026)
- Part numbers: H31853507 (front) + H61286007 (rear)
- Country of manufacture: Italy
FitmentWhich bikes this fits▼
- Kawasaki ZX-10 R (2021–2026)
Questions, one topic at a time.
Get the real shipping cost for this item to your address — the same rates as checkout.
Choose a destination and hit Estimate — we fetch the live rates for this item.
We’re based in Germany. Standard delivery goes by DHL and national postal services and takes about 2–5 days within Germany, 1–2 weeks within the EU and 2–6 weeks outside the EU. Need it sooner? Express delivery reaches most of the world within a few days — just choose it at checkout where available.
Your exact shipping cost is calculated by destination and weight and shown at checkout before you pay — no hidden fees. Express delivery is selectable at checkout where available.
Yes, we ship to over 130 countries. Prices, taxes and delivery times for your destination are calculated automatically at checkout.
Within the EU, no — our prices already include all duties and EU VAT. For deliveries outside the EU (e.g. Switzerland, the UK or the USA), your order may be subject to import duties and taxes set by your country. These are collected by the carrier when your parcel arrives, aren’t included in our prices, and are outside our control.
As soon as your parcel ships we email you a tracking link, so you can follow it all the way to your door.
On out-of-stock items you can request a delivery time or leave your email to be notified the moment it returns — just use the notification box on the product.
You have the right to cancel within 14 days of receiving your order. Register your return by email first; once it’s approved you have a further 14 days to send the goods back. Items should be unused and in their original packaging.
Register your return by email with your order number before sending anything back, and we’ll send you the return instructions. Please note: returns that aren’t registered in advance can’t be accepted.
The quickest way is to place a new order for the size you need and register a return for the original by email — just let us know it’s an exchange.
We’re sorry — that shouldn’t happen. Contact us with your order number and a photo as soon as you can, and we’ll arrange a replacement or refund right away. Faulty goods are always covered by your statutory warranty.
Refunds go back to your original payment method, usually within 3–5 working days of your return reaching our warehouse.
PayPal, all major credit and debit cards (Visa, Mastercard, American Express), Klarna (pay later and instalments), Apple Pay, Google Pay and more — all processed securely via PayPal and Mollie.
Yes. Choose Klarna at checkout to split your purchase into flexible monthly installments.
Your payment is taken when you place your order. If you choose Klarna, you pay later according to Klarna’s terms.
Every payment runs over an SSL-encrypted connection through certified providers. We never see or store your full card details.
If your order hasn’t shipped yet, contact us as soon as possible and we’ll do our best to change or cancel it.
No — you can check out as a guest. An account simply lets you track orders and reorder faster.
For customers in the EU, prices are shown including your country’s local VAT. For customers outside the EU, prices are shown without VAT — instead, your country’s import taxes and duties may apply on delivery (see the customs question).
Yes. Your invoice is attached to your order confirmation email and is also available in your account.
Yes. We’re an authorised dealer, so every product is 100% original and comes with the full manufacturer warranty.
Yes. Everything we sell is genuine and comes with the manufacturer’s warranty, on top of your statutory rights. Keep your invoice as proof of purchase and contact us if you ever need to make a claim — we’ll help you through it.
Our team is happy to help. Use the contact button below and we’ll personally help you choose the right gear or part.
Measure your head circumference about one centimetre above your eyebrows and compare it with the size chart on this page. Between sizes? Choose the smaller one — the padding beds in with use.
Yes — it’s tested and approved to the current ECE 22.06 standard and road-legal across the EU.
Most of our touring and sport helmets are Pinlock-ready and many include the insert. Check the ‘What’s in the box’ section on this page for this model.
Yes — the cheek pads are channelled so the arms of your glasses slide in comfortably.
Take out the washable lining and hand-wash it in lukewarm water. Clean the shell and visor with a soft cloth and water only — never solvents.
Our team will personally help you choose the right gear or part — around 24h for a reply.