Best Motorbike Crankcases of 2025

The OrangeA Crankcase Splitter is essential for anyone looking to disassemble vertically split 2- and 4-stroke crankcases. With its rugged, heavy-duty steel construction, it ensures durability and reliability. The 360-degree adjustable arms allow you to use it on various bolt patterns, making the splitting process easier without damaging components. Additionally, it comes with centre pulling bolts and mounting bolts, fitting most engines and streamlining your crankcase disassembly. This tool significantly reduces the time and effort needed to complete your repairs.

The YX140cc Left Side Casing is a vital component for your pit bike, made from lightweight cast alloy to effectively cover the stator magneto. With a diameter of 7 mm for fixing holes, it ensures a secure fit, providing peace of mind during rides. Its overall dimensions are carefully designed for compatibility with various models, including Stomps and WPB. Additionally, the powder-coated light grey finish not only enhances the aesthetic appeal but also protects against wear and tear, prolonging the life of the casing.

The Qiilu Crankcase Separator is expertly designed for disassembling vertically separated 2-stroke and 4-stroke crankcases. Its user-friendly operation allows you to safely push the crank assembly out of the half shell, making repairs quick and straightforward. With adjustable arms, you can tailor the tool to fit various bolt styles, enhancing its versatility. Additionally, it comes with convenient mounting bolts, simplifying the installation process and ensuring you have everything you need right at your fingertips.

The Peruzzo 42 Cruiser is a durable motorbike crankcase perfect for your bike. Its robust construction ensures long-lasting performance, providing you with peace of mind during rides. Measuring 26'' 3/4, it is ideal for simple bikes, allowing for easy installation and compatibility. The sleek black colour adds a stylish touch to your bike's appearance, enhancing its overall look while maintaining functionality.

The Benelli TNT Engine Guard is crafted from high-quality CNC machined T6 aluminium, ensuring enhanced strength and durability against corrosion. This engine guard optimally covers joins and irregularities in the road surface, effectively preventing your bike from catching as it slides. Its special design absorbs and reduces the impact if your motorcycle lands on its side, providing you with greater peace of mind during rides. The durable construction means it is not easy to break or corrode, making it a reliable choice for long-term use.

The STONEDER Oil Cooler Adapter is designed to fit 125cc and 140cc pit dirt bikes, ensuring compatibility with your vehicle. It comes in a safety package, which helps keep the product in excellent condition during shipping. By reading the description carefully, you can ensure you are purchasing the correct product, avoiding any unnecessary hassle. This adapter plate is crucial for optimising engine performance and longevity, making it a valuable addition to your bike.

The PetrolScooter Side Cover is a non-genuine magneto and stator side cover designed for Honda C50 layflat engines ranging from 90cc to 140cc. This durable cast metal casing not only protects the stator and magneto but also shields the engine drive sprocket. It features three fixing holes, though you can conveniently ignore one if your engine has only two. Finished in a sleek gloss black, it complements your bike's aesthetics while providing essential protection.

The Z800 Engine Cover is designed specifically for your Z800 model from 2013 to 2015, ensuring a perfect fit. Made from high-quality ABS plastic, it offers durability and protection for your motorcycle’s crankcase. The pre-drilled holes make installation straightforward, saving you time and effort. Additionally, the coating ensures a consistent finish, enhancing the aesthetic appeal of your bike. With this engine cover, you can ride with confidence, knowing your bike is well protected.

The JFG RACING Engine Case Saver is designed for the Sur Ron Light Bee models, providing exceptional protection for your motorcycle's engine. Made from durable aluminium alloy, it is strong, wear-resistant, and resists corrosion, ensuring longevity. This engine guard effectively shields your engine from debris, soil, and splashes, helping to maintain its optimal performance. Installation is a breeze, requiring no complicated tools or modifications, allowing you to replace your old or damaged cover effortlessly.

The RockMute Engine Cover Protector is crafted from a high-quality blend of POM plastic, aluminium powder, and fibre, ensuring exceptional durability. This means you can ride with confidence, knowing that your engine cover and gearbox are fully protected in the event of a crash. The unique material composition allows the covers to slide upon impact, preventing cracks that are common with regular protection gears. Additionally, these covers can withstand extreme temperatures, up to 700 degrees Celsius, making them a reliable choice for any rider.