Overview
This is a Pro-Spec Front Aluminum Hub for Losi® Promoto-SM Front. Engineered for enthusiasts, this Pro-Spec Aluminum wheel is designed to perform in extreme environments while taking a beating. The Pro-Spec Aluminum Hub is anodized and made from 6061 billet aluminum.
3D print this lacing fixture tool to help with spoke replacements! DOWNLOAD .STL file
PRO284705 | Pro-Spec Blue Aluminum Front Rim for Promoto-SM
Features
- True to Scale Supermoto-Inspired Appearance
- Anodized CNC Machined 6061 Billet Aluminum Rim
- Compatible with V2 Bead SM Mounting Sleeve
- Replacement Pro-Spec Aluminum SM Wheel Rim
Overview
The Pro-Line 1/4 Pro-Spec Blue Aluminium Front Rim for Promoto-SM is an essential upgrade for serious RC enthusiasts looking to maximise the performance and durability of their Losi Promoto-SM supermoto motorcycle. Engineered specifically for the demands of competitive and high-intensity RC riding, this premium replacement wheel rim combines authentic supermoto-inspired styling with professional-grade materials and construction. Whether you are upgrading from standard rims or replacing worn components, this Pro-Spec front rim delivers the reliability and performance characteristics that experienced RC car UK hobbyists demand from their equipment.
Designed to perform in extreme environments whilst taking a beating, the Pro-Spec Aluminium Hub represents Pro-Line Racing's commitment to delivering competition-quality components for 1/4 scale RC motorcycles. The rim is fully compatible with the V2 Bead SM Mounting Sleeve system, making it a direct replacement for your existing front wheel assembly. This is not merely a cosmetic upgrade; the engineering and material selection reflect years of racing experience and customer feedback from the global RC community.
RC enthusiasts across the UK recognise Pro-Line Racing as a leader in quality RC components, and this front rim exemplifies that reputation. The true-to-scale appearance combined with genuine performance benefits makes this an ideal choice for builders, racers, and dedicated hobbyists who refuse to compromise on quality. If you take your RC Promoto-SM seriously, this Pro-Spec rim should be at the top of your upgrade list.
Key Features
- True to Scale Supermoto-Inspired Appearance — The rim's design accurately reflects the styling of full-size supermoto motorcycles, giving your RC Promoto-SM an authentic, professional look that sets it apart from standard wheels. This attention to detail matters to enthusiasts who appreciate both performance and aesthetics in their ready to run RC models and custom builds.
- CNC Machined 6061 Billet Aluminium Construction — Machined from aerospace-grade 6061 billet aluminium, this rim combines exceptional strength with minimal weight. The precision machining process ensures consistent tolerances and structural integrity, which translates to improved handling, reduced unsprung weight, and better overall performance on the track or trail.
- Anodised Finish for Durability — The anodised surface treatment provides a hardened, corrosion-resistant finish that protects the aluminium from oxidation, moisture, and the wear that comes with regular use. This means your blue rim will maintain its appearance and structural properties through countless hours of riding, even in damp UK conditions.
- Compatible with V2 Bead SM Mounting Sleeve — Full compatibility with Pro-Line's V2 Bead system ensures seamless integration with your existing Promoto-SM setup. This compatibility is essential for drop-in replacement functionality, meaning installation requires no modifications or additional adapters.
- Replacement Pro-Spec Aluminium SM Wheel Rim — This is a genuine replacement rim specifically designed for the Pro-Spec Aluminium SM wheel system. It's engineered to work perfectly with Pro-Spec spokes, making it ideal for enthusiasts who are either upgrading their entire wheel setup or replacing damaged components.
- 3D Printable Spoke Lacing Fixture Tool — Pro-Line provides a downloadable .STL file for a 3D-printed spoke lacing fixture, allowing you to easily replace spokes yourself at home. This innovative feature empowers RC hobbyists to perform maintenance and repairs without waiting for replacements, keeping your Promoto-SM on the track longer.
Technical Performance
The Pro-Spec Blue Aluminium Front Rim represents the pinnacle of engineering for 1/4 scale RC motorcycle wheels. Manufactured from 6061 billet aluminium—the same material used in aerospace applications—this rim offers an exceptional strength-to-weight ratio that directly impacts your Promoto-SM's performance. The CNC machining process ensures that every rim meets exacting tolerances, which is critical for consistent handling and reliable performance lap after lap. The anodised finish is not merely cosmetic; it creates a hardened surface layer that resists corrosion, impact damage, and the general wear that comes with aggressive riding in varying UK weather conditions. The rim integrates seamlessly with the V2 Bead SM Mounting Sleeve system, a specification that confirms compatibility with the latest Pro-Line Promoto-SM components. For riders serious about maximising their RC motorcycle's potential, this front rim delivers measurable improvements in responsiveness, durability, and longevity. The professional engineering and materials ensure that whether you are racing competitively or enjoying high-speed bashing sessions, your wheels will maintain their integrity and performance characteristics across countless rides.
What's in the Box
- Pro-Spec Aluminium V2 Bead Pre-Assembled Front Wheel (1)
- Front Tyre Mounting Sleeve (1)
- M2.5x8 Button Head Cap Screw (8)
- M3x6 Flat Head Screw (6)
- Steel Rotor Screw Sleeves (6)
Compatibility
- Losi 1/4 Promoto-SM FXR Supermoto Motorcycle RTR (Battery and Charger Included)
- Losi 1/4 Promoto-SM FXR Supermoto Motorcycle RTR Basic
- Any Losi Promoto-SM build equipped with Pro-Spec Aluminium SM Front Rim with Spokes
Frequently Asked Questions
- Is the Pro-Line Pro-Spec Blue Aluminium Front Rim suitable for beginners? — This rim is designed as a replacement component rather than a beginner-oriented product. If you already own a Losi Promoto-SM and are looking to upgrade or replace your front wheel, this Pro-Spec rim is an excellent choice. Beginners starting with RC motorcycles should first acquire a complete Promoto-SM ready to run kit, then consider this rim as their first upgrade.
- What vehicles does this rim fit? — This front rim is specifically engineered for the Losi Promoto-SM 1/4 scale supermoto motorcycle. It is not compatible with other RC vehicle types. Confirm your model is a Promoto-SM before purchasing, as Pro-Line manufactures similar products for different platforms.
- Can I replace individual spokes if they break? — Yes. Pro-Line provides a downloadable 3D-printable spoke lacing fixture tool that enables you to replace individual spokes at home. This feature makes maintenance straightforward and keeps repair costs minimal compared to replacing the entire wheel assembly.
- What makes this rim better than the standard wheels that come with a Promoto-SM? — The Pro-Spec rim offers several advantages: it is manufactured from premium 6061 billet aluminium rather than plastic or lower-grade materials, it features CNC precision machining for exact tolerances, the anodised finish provides superior durability and corrosion resistance, and the true-to-scale supermoto styling gives your RC a more authentic appearance. The result is a wheel that performs better, lasts longer, and looks significantly more impressive.
- Is installation difficult? — Installation requires removing your existing front wheel and fitting this replacement rim using the supplied M2.5x8 button head cap screws and M3x6 flat head screws. If you are comfortable performing basic RC maintenance, you should find installation straightforward. Refer to your Promoto-SM manual or Pro-Line's documentation for detailed step-by-step instructions.
- Will this rim fit my Promoto-MX? — No. This front rim is designed exclusively for the Promoto-SM supermoto motorcycle. Pro-Line manufactures separate Pro-Spec rims for the Promoto-MX motocross model. Ensure you select the correct product for your RC motorcycle platform.
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 PRO 1/4 Pro-Spec Blue Aluminum Front Rim: Promoto-SM G-PRO284705 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.
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