Overview
The RPM Crash Structure (Radiator) for the Losi Promoto is a purpose-built upgrade designed to solve those pesky breakage issues that plague stock motorcycle RC models. Whether you're a dedicated RC enthusiast in the UK, a competitive racer, or simply someone who loves pushing their RC motorcycle to the limit, this replacement radiator addresses one of the most common failure points on the Losi Promoto range. RPM has engineered a solution that combines genuine durability with authentic scale styling, making this an essential upgrade for anyone serious about protecting their investment.
Designed specifically for the 1/4 scale Losi Promoto-MX and Promoto-SM platforms, this crash structure replaces the mock radiator portion of the stock Losi #LOS261010. RPM strengthened the most common stock break point by adding mock louvers running the full length of the radiator section. These louvers are not merely aesthetic—they are actually strengthening ribs engineered to deflect rocks and impact debris, mimicking the angled fins found on full-sized dirt bikes. By combining functional engineering with authentic scale detailing, RPM has created an upgrade that increases both the cool factor and real-world durability of your RC motorcycle.
Available in dyeable white, this RC part offers an exceptional level of customisation for UK RC enthusiasts. The dyeable white version can be dyed any colour you want using standard hot water and fabric dye in just a few minutes, giving you complete control over your bike's appearance. If you prefer not to dye it, the base white looks amazing straight out of the box, and the strengthened design ensures your Promoto can handle serious bashing and competitive riding without the constant worry of radiator damage.
Key Features
- Reinforced Crash Structure Design — RPM has engineered this radiator with additional strengthening ribs that run the full length of the component, directly addressing the most common stock break point on Losi Promoto models and significantly increasing durability without compromising scale appearance.
- Mock Louver Technology — The integrated louvers serve a dual purpose: they look like authentic angled fins found on real dirt bike radiators, enhancing scale detail, whilst simultaneously deflecting rocks and debris away from the radiator section during aggressive riding and high-speed bashing.
- Dyeable White Finish — This version is moulded in dyeable white, allowing you to customise the colour of your RC motorcycle radiator using standard hot water and fabric dye in just minutes, giving you unlimited colour options without needing to buy multiple parts or paint.
- Authentic Scale Styling — Beyond raw strength, the mock radiator design increases the cool factor significantly, adding visual authenticity to your 1/4 scale Promoto motorcycle that simply doesn't exist with stock plastic components.
- Easy Installation — The crash structure replaces only the mock radiator portion of the stock assembly, and reuses existing stock mounting hardware, making installation straightforward for RC enthusiasts of all skill levels without requiring new fasteners or tools.
- Limited Lifetime Breakage Warranty — RPM backs this component with their limited lifetime breakage warranty, giving you confidence that you are investing in a part built to last and protected against manufacturing defects.
- Compatible with Multiple Promoto Models — This single part is compatible with the Losi 1/4 Promoto-MX Motorcycle RTR (both FXR Red and Club MX Blue versions), the Promoto-MX with Battery and Charger (Pro Circuit edition), and the Losi 1/4 Promoto-SM FXR Supermoto models, making it an incredibly versatile upgrade.
Technical Performance
The RPM Crash Structure represents genuine engineering excellence in the RC motorcycle accessories market for UK buyers. This component is purpose-built for the 1/4 scale Losi Promoto platform, a highly regarded and competitive RC motorcycle that demands quality aftermarket support. By reinforcing the radiator section with integrated strengthening ribs—positioned and angled to mimic real dirt bike cooling fins—RPM has created a component that withstands the extreme stresses of bashing, racing, and competitive riding. The dyeable white material allows for complete customisation whilst maintaining the structural integrity required for demanding use. Installation is straightforward, requiring only the reuse of stock Losi mounting hardware from the original #LOS261010 assembly. The part replaces the mock radiator section only, meaning you retain all existing components whilst gaining the benefits of RPM's superior engineering and impact protection. For RC enthusiasts in the UK seeking to upgrade their Promoto motorcycle with a part that delivers both aesthetic enhancement and genuine durability, this crash structure offers outstanding value and proven performance backed by RPM's confidence in their limited lifetime warranty.
What's in the Box
- RPM Crash Structure (Radiator) for Losi Promoto in dyeable white
What You Need to Complete
- Stock Losi mounting hardware from your existing Promoto assembly (reused from original #LOS261010 radiator)
- Hot water and fabric dye (if you wish to dye the component to a custom colour)
Frequently Asked Questions
- Will this crash structure fit my Losi Promoto motorcycle? — Yes, the RPM Crash Structure is specifically engineered for the Losi Promoto range. It is compatible with the Losi 1/4 Promoto-MX Motorcycle RTR (FXR Red variant), the Losi 1/4 Promoto-MX with Battery and Charger (Pro Circuit edition), the Losi 1/4 Promoto-MX Club MX (Blue variant), and both Losi 1/4 Promoto-SM FXR Supermoto models (both the RTR with Battery and Charger included, and the Basic RTR version). Installation simply requires reusing your stock Losi mounting hardware from the original radiator assembly.
- Can I dye the white radiator to match my bike's colour scheme? — Absolutely! The dyeable white version is specifically designed for customisation. Using standard hot water and fabric dye, you can achieve virtually any colour in just a few minutes. This makes it easy to match your RC motorcycle to your preferred colour scheme without needing to purchase multiple parts or rely on expensive custom painting services. If you do not wish to dye it, the base white looks fantastic straight out of the box.
- What makes this radiator stronger than the stock component? — RPM identified the radiator section as the most common break point on stock Promoto models. They reinforced it by adding strengthening ribs that run the full length of the component, positioned and angled to mimic authentic dirt bike radiator fins. These ribs not only look more realistic and improve the scale appearance of your motorcycle, but they actively deflect rocks and debris away from the radiator during riding, significantly increasing durability without adding unnecessary weight or bulk.
- Is installation difficult? — No. The crash structure is designed as a direct replacement for the radiator portion of the stock Losi #LOS261010 assembly. Because it reuses your existing stock mounting hardware, installation is straightforward and does not require special tools or additional fasteners. Most RC enthusiasts can complete the upgrade in under ten minutes.
- What warranty does this part come with? — The RPM Crash Structure is backed by RPM's limited lifetime breakage warranty, which demonstrates the company's confidence in the durability and quality of their engineering. This warranty provides peace of mind that your investment is protected against manufacturing defects.
- Is this suitable for both racing and bashing? — Yes. Whether you use your Losi Promoto for competitive racing or casual weekend bashing, this crash structure delivers the durability you need. The reinforced design handles both disciplines equally well, making it an essential upgrade for any Promoto owner who wants to minimise downtime from radiator damage.
Why Buy from RC Model Shop?
RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the RPM CRASH STRUCTURE (RADIATOR) FOR LOSI PROMOTO DYEABLE WHITE RPM72201 today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.
- Manufacturer: RPM
- Model Number: RPM72201
- EAN: 672415722015
- Product Type: Crash Structure / Radiator Replacement
- Scale: 1/4
- Compatible Vehicles: Losi 1/4 Promoto-MX Motorcycle RTR (FXR Red), Losi 1/4 Promoto-MX Motorcycle RTR with Battery and Charger (Pro Circuit), Losi 1/4 Promoto-MX Motorcycle RTR (Club MX Blue), Losi 1/4 Promoto-SM FXR Supermoto Motorcycle RTR (Battery and Charger Included), Losi 1/4 Promoto-SM FXR Supermoto Motorcycle RTR (Basic)
- Replaces: Radiator portion of stock Losi #LOS261010
- Material: Dyeable white plastic
- Features: Integrated mock louver strengthening ribs along full length
- Installation: Reuses existing stock Losi mounting hardware
- Installation Type: Direct replacement radiator section only
- Warranty: Limited lifetime breakage warranty
- Customisation: Dyeable with standard hot water and fabric dye
- Included in Box: RPM Crash Structure (Radiator) only
- Additional Items Required: Stock Losi mounting hardware (reused from original assembly)
We want to make sure your delivery goes smoothly, so here are some important details about our service:
- For orders above £120, we offer delivery to most mainland UK addresses. For orders under £120, we can still deliver to Northern Ireland and the outlying isles, as long as the item can be sent by Royal Mail, weighs less than 30kg, and fits within 61cm × 46cm × 46cm. Some highland and remote areas may carry an extra delivery charge as couriers often apply surcharges in these locations. If you live in one of these areas, feel free to contact us before ordering so we can confirm the delivery options and costs for you.
- Most of our products include delivery in the price. If your order is under £90, a small delivery fee will apply but do not worry this will always be clearly shown at checkout before you complete your purchase.
- Depending on what you choose at checkout, your order will usually be delivered either the next working day or within 2 working days. For next day delivery please place your order before 2:00pm. Orders are dispatched Monday to Friday only. Some items may take a little longer and if that is the case we will always show the expected delivery time on the product page.
- If your order includes items with different dispatch times we will normally wait and send everything together once all items are in stock. If one of the items is going to take a while we will give you the choice either wait for everything to arrive or let us send the available items now and deliver the rest later. It is up to you.
- We use trusted delivery partners to make sure your order gets to you safely and on time. We use DPD for next working day deliveries and Royal Mail for the 2 day option.
- As soon as your order is on its way we will send you a tracking number by email. If you provide your mobile number at checkout we will also send delivery updates straight to your phone so you can keep an eye on progress.
- If a product is marked as "Dispatched within 3 working days" delivery usually takes around 3 to 5 working days from when your order is placed.
- For customers in Inverness and other parts of the Scottish Highlands deliveries can take up to 2 working days even if you select next day delivery as couriers do not currently offer a guaranteed next day service to those areas.
