Billet Machined Alloy Conversion Kit Combo D for Losi 1/4 Promoto-MX Motorcycle. 14 Years & Up. OVERVIEW Owners of the popular Losi 1/4 Promoto-MX Motorcycle can upgrade their moto from plain, box stock to a higher performing, eye-catching super-modified machine with our Billet Machined Alloy Conversion Kit (Combo D). The combo set features a comprehensive list of our hop-ups, bundled together to not only transform your bike but also provide excellent value. The Billet Machined Alloy Conversion Kit “Combo D” comes in seven different colors, but we have a limited supply. Grab this deal before it’s gone! Item# C33677GREEN Barcode: 91789047431. Compatible Scale: 1:4. Compatible Fuel Type: Electric. Age Level: 14 Years & Up. Fitment and Installation Notes. A majority of our aluminum upgrade kits, conversions, and alloy parts are designed to replace, modify, or upgrade the stock plastic parts with aluminum versions. Products may feature a different design language that may not be identical in design to the OEM version. Unless specified, not all products include new hardware; if new or different-sized hardware and/or fasteners are included with the upgrade kit, those are meant to replace the factory hardware. Extra hardware, shims, or spacers may be required for some installations. That is different from what is originally shown in the website product photos; however, any alternates will be compatible hardware that will not affect the functionality of the product. Most of our products DO NOT include instructions, and are meant to be completely installed by an experienced hobbyist; this includes product assembly/disassembly, any set-up and adjustment, and periodic maintenance. Third party products may have available instructions online from their respective manufacturers. All products will require some prep out of the package. Some items shocks, gearboxes, axles, etc. Are assembled for packaging purposes only, and may require standard prep before installation and usage, such as shimming for proper alignment, checking tightness of all components and fasteners, anti-seize, grease, or liquid thread lock for critical fasteners and any metal to metal contact. Do not just install the item out of the package and assume they are prepped correctly. Check, adjust, and set/reset all new items when taken out of the package. Some parts may require permanent modification to the vehicle for fitment, and may eliminate certain OEM features. Some items that are different from the OEM part may require modification to the vehicle for proper clearance. Some products are designed with tighter tolerances and/or include parts that need some pre-race or “break-in” periods in order to get the item into condition for regular use. Snow and sand tracks need to be broken-in to stretch to the correct tension, and new tires need to lose a small amount of the outer surface to expose the actual tire tread that will give traction. This break-in period also allows you to see that everything is working properly before giving it “full gas”. A proper break-in basically consists of driving your vehicle with the new parts installed at slow to medium speeds, with smooth throttle modulation. Do not go full throttle, do not do large jumps, and any high-stress activities yet. The break-in process should only last around 2-3 battery packs (or 2-3 tanks of fuel if nitro). Upon completing break-in, be sure to recheck, adjust, and set/reset the items. Suspension shocks (individual and sets) may be packaged partially assembled for display purposes only and require standard shock prep before installation and usage. All new shocks should be cleaned, reassembled, and may require RC-grade silicone shock oil before being used. Shocks need to be cycled so that the internal seals can conform to the shock shaft and body, during the initial break-in period shock may partially leak until the seals are seated correctly. Wheel and tire sets may be packaged partially assembled for display purposes only and require standard wheel/tire prep before installation and usage. All wheels and tires should be cleaned, reassembled, and may require CA glue (if press-fit style) or separate assembly (if beadlock style) before being used. Wheels and tires are not always pre-glued from the factory (unless specified in the product name or description). Since 2010, RC Option has been a trusted retailer in the RC hobby. With over a decade of experience, our store has provided RC enthusiasts a place to get all of their RC needs, from ready-to-run cars and boats, to replacement and upgraded wheels and tires, electronic equipment, scale crawler accessories, and more. We offer products from many well-known brands such as Integy, 3Racing, SkyRC, MuchMore, RC Square, and more. From weekend hobbyists to competitive racers, we’re proud to provide all RC enthusiasts a place to find exactly what they need! Alloy Machined Adjustable Steering Servo Mount for Axial SCX24. Billet Machined Alloy Steering Blocks for Axial 1/24 SCX24 Rock Crawler. Billet Machined Rear Chassis Brace for Axial 1/24 SCX24 Rock Crawler C10. Alloy Machined Pinion & Spur Gear Cover for Axial 1/24 SCX24. Billet Machined Battery Mount for Axial 1/24 SCX24. Composite CF Main Chassis Conversion for Axial 1/24 SCX24 Deadbolt & C10. Billet Machined Alloy Front Bumper Mount for Axial 1/24 SCX24 Rock Crawler. Metal Chassis Rails for Axial 1/24 SCX24 Rock Crawler. Billet Machined Motor Mounting Plate for Axial 1/24 SCX24 Rock Crawler. Silver Alloy Machined Pinion & Spur Gear Cover for Axial 1/24 SCX24. Silver Billet Machined Center Gearbox Mounting Plate for Axial 1/24 SCX24. 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