⟲ 360° — drag meThe facts.
| Brand | H2O Performance |
|---|---|
| Type | Additional water radiator |
| Fitment | Aprilia RS 660 (2020–2026) |
| Installation | Plug-and-play, no modification required |
| Core design | Motorsport-optimised, enlarged heat-exchange surface |
| Intended use | Road and track |
DescriptionThe whole story▼
When the Aprilia RS 660 is working hard — whether on a sun-baked back road or deep into a track day session — thermal stability separates a satisfying ride from a frustrating one. The H2O Performance additional water radiator is engineered specifically for the RS 660 to expand cooling capacity, hold engine temperatures in their optimal range, and let you extract every last fraction of the engine's potential without compromise.
Key Features
- Increased cooling capacity through a larger surface area and motorsport-optimised core design
- Improved temperature stability under sustained high load, hot ambient conditions, and track use
- Reduces thermal stress on the entire cooling circuit, supporting long-term engine reliability
- Plug-and-play fitment for Aprilia RS 660 (2020–2026) — precise tolerances, clean installation
- Race-derived technology translated directly from real competition requirements to the road
Built for Riders Who Push Further
H2O Performance is one of the most respected names in high-performance cooling, with a catalogue shaped by genuine motorsport demands. Their additional radiator for the RS 660 is not a generic afterthought — it is a purpose-designed component that works alongside the factory cooling system to provide the extra thermal headroom that spirited riding demands.
The larger heat-exchange surface allows the coolant circuit to shed heat more efficiently, keeping the engine operating within its ideal temperature window even when ambient temperatures climb or throttle demand stays high for extended periods. The result is consistent power delivery, reduced wear on internal components, and a ride that feels just as sharp on lap fifteen as it did on lap one.
Who This Radiator Is For
- Ambitious sports riders who demand consistent performance regardless of conditions
- Track day enthusiasts looking to eliminate temperature-related power loss once and for all
- Owners focused on preserving engine longevity over high-mileage seasons
- Anyone ready to take the technical specification of their RS 660 to the next level
Fitment & Compatibility
This H2O Performance additional water radiator is a direct-fit upgrade for the following:
- Aprilia RS 660 — model years 2020, 2021, 2022, 2023, 2024, 2025, 2026
Specifications
- Brand: H2O Performance
- Type: Additional water radiator
- Fitment: Aprilia RS 660 (2020–2026)
- Installation: Plug-and-play, no modification required
- Design: Motorsport-optimised, enlarged heat-exchange surface
- Intended use: Road and track
FitmentWhich bikes this fits▼
- Aprilia RS 660 (2020–2026)
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.