Overview
The RPM Crash Structure (Radiator) for the Losi ProMoto is an essential upgrade for any RC motorcycle enthusiast in the UK who's tired of costly breakages. If you own a Losi 1/4 ProMoto-MX or ProMoto-SM Supermoto RC motorcycle, you know that the stock radiator is often the first casualty when your bike hits rough terrain, rocks, or crashes during aggressive riding. This purpose-designed replacement solves that problem by reinforcing the exact weak point where most riders experience damage. Whether you're a casual backyard basher or a competitive RC motorcycle racer, this upgrade will save you money in the long run and keep your ProMoto in action for more track time and less repair time.
RPM has engineered this crash structure with genuine insight into how RC motorcycles actually break in real-world conditions. Rather than simply making the radiator thicker or heavier, they've added strategically placed strengthening ribs across the full length of the mock radiator. These ribs aren't just functional—they're styled to look like the authentic angled fins you'd see on a full-sized dirt bike, giving your RC motorcycle that extra dose of scale realism and visual appeal. This is engineering that looks as good as it performs, combining durability with genuine style that will make your ProMoto stand out on the track or in your collection.
When you choose the RPM Crash Structure, you're investing in reliability backed by RPM's limited lifetime breakage warranty. This isn't a cheap plastic replacement—it's a genuine performance upgrade designed by engineers who understand RC motorcycles inside and out. Available in either tough black or dyeable white, this part gives you the option to customise your ride to match your personal style, whether you prefer the classic black look or want to dye the white version to any colour of your choice using simple hot water and fabric dye.
Key Features
- Reinforced crash structure design — The RPM Crash Structure addresses the most common breakage point on stock Losi ProMoto motorcycles by adding full-length strengthening ribs that significantly increase durability without adding unnecessary weight or bulk to your RC bike.
- Mock louvers with authentic styling — The integrated strengthening ribs are shaped to resemble the angled fins found on real dirt bike radiators, giving your RC motorcycle authentic scale detail whilst simultaneously deflecting rocks and debris away from the radiator during aggressive riding.
- Increased cool factor and visual appeal — Beyond pure function, this crash structure genuinely improves the appearance of your ProMoto, making it look more realistic and professional compared to the stock radiator component.
- Available in black or dyeable white — Choose the classic black finish for immediate use, or select the dyeable white version and customise it to any colour you want using standard hot water and fabric dye, allowing you to match your personal colour scheme or team colours.
- Limited lifetime breakage warranty — RPM stands behind the durability of this component with their limited lifetime warranty, giving you peace of mind that this is a genuine quality upgrade, not a cheap compromise.
- Direct bolt-on installation — The RPM Crash Structure replaces only the radiator portion of the stock Losi part number LOS261010, and reuses your existing mounting hardware for straightforward installation without requiring additional parts or modifications.
- Improved durability for competitive and recreational riding — Whether you're racing competitively or bashing casually, this upgrade reduces downtime from breakages and keeps your ProMoto in the action longer, making it an essential investment for serious RC motorcycle enthusiasts.
Technical Performance
The RPM Crash Structure represents genuine engineering designed specifically for the Losi 1/4 ProMoto-MX and ProMoto-SM Supermoto motorcycles. The key to its performance lies in the strategic placement of strengthening ribs along the entire length of the mock radiator housing. Unlike simple thickness improvements that add weight and restrict airflow, RPM's rib design distributes impact forces more effectively whilst maintaining the slim profile required for authentic RC motorcycle proportions. The component is moulded in durable plastic composite materials available in two finishes: premium black for immediate use, or white for enthusiasts who want to dye their parts to custom colours. Installation is straightforward—the part replaces the radiator section of the original Losi assembly (part number LOS261010) and uses existing mounting hardware, meaning no drilling, modification, or additional fasteners are required. For riders who put their ProMoto through demanding conditions, from rocky terrain to track racing, this crash structure has proven its worth in reducing expensive breakages and extending the life of your motorcycle. The engineering quality, combined with RPM's reputation in the RC off-road community, makes this an industry-standard upgrade that serious ProMoto owners return to repeatedly.
What's in the Box
- RPM Crash Structure (Radiator) for Losi ProMoto in black or white
What You Need to Complete
- Losi ProMoto-MX or ProMoto-SM motorcycle (RTR model)
- Stock mounting hardware from original Losi radiator assembly (LOS261010)
- If selecting white dyeable version: hot water and fabric dye for custom colouring (optional)
Frequently Asked Questions
- What Losi ProMoto models does this crash structure fit? — The RPM Crash Structure is compatible with the Losi 1/4 ProMoto-MX Motorcycle RTR in FXR (Red) and Club MX (Blue) versions, as well as the Losi 1/4 ProMoto-SM FXR Supermoto Motorcycle RTR models. It replaces the radiator portion of stock Losi part number LOS261010 and reuses your existing mounting hardware.
- How much stronger is this compared to the stock radiator? — RPM strengthened the most common stock break point by adding mock louvers across the full length of the radiator. These louvers actually function as strengthening ribs that significantly increase durability whilst maintaining the authentic appearance of real dirt bike radiator fins.
- Can I paint or dye the white version? — Yes, the dyeable white version can be customised to any colour you want using hot water and standard fabric dye, allowing you to match your preferred colour scheme or team colours in just a few minutes. The black version comes ready to use immediately.
- Is this just a cosmetic upgrade or does it actually improve durability? — This is a genuine durability upgrade, not cosmetic. The strengthening ribs are engineered to deflect rocks from hitting the radiator during riding, and the rib design distributes impact forces more effectively than the stock radiator, reducing breakage incidents significantly.
- What warranty does RPM offer on this part? — The RPM Crash Structure is backed by RPM's limited lifetime breakage warranty, giving you confidence in the quality and durability of your investment in this essential upgrade.
- Is installation difficult? — Installation is straightforward. The crash structure replaces the radiator portion of the original Losi assembly, reusing all existing mounting hardware. No drilling, modifications, or additional fasteners are required—it's a direct bolt-on replacement.
- Does this affect airflow or cooling performance? — No, the strengthening ribs are designed to maintain the slim profile and airflow characteristics of the original radiator whilst adding structural rigidity. The louver design actually helps deflect debris and can assist with keeping the radiator clear during riding.
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 BLACK RPM72202 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
- Part Number: RPM72202
- Product Type: Crash Structure / Mock Radiator
- Compatible Models: 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 Basic, Losi 1/4 ProMoto-SM FXR Supermoto Motorcycle RTR with Battery and Charger
- Replaces: Radiator portion of stock Losi part number LOS261010
- Colour Options: Black, Dyeable White
- Material: Durable plastic composite
- Design Features: Full-length strengthening ribs styled as mock louvers, authentic angled fins for scale appearance, impact-deflecting design
- Installation: Direct bolt-on replacement using existing stock mounting hardware
- Warranty: Limited lifetime breakage warranty from RPM
- Customisation: White version can be dyed to any colour using hot water and fabric dye
- EAN: 672415722022
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.
