Hey guys! Thinking about tweaking your NMAX 2018's rear suspension? One of the key things to consider is the rear shock height. Getting the right height is super important for your scooter's handling, comfort, and overall ride experience. Let's dive into why this matters and how to figure out what works best for you.

Why Rear Shock Height Matters

Okay, so why should you even care about the height of your rear shock? Well, adjusting the rear shock height affects several aspects of your NMAX 2018. First and foremost, it impacts the bike's handling. Raising the rear can make the steering quicker and more responsive, which is great for navigating city streets. On the flip side, lowering it can provide more stability, especially at higher speeds. Think about what kind of riding you do most often. Are you zipping through traffic or cruising on the open road? Your riding style should heavily influence your decision.

Secondly, the rear shock height influences rider comfort. A taller rear shock can provide more suspension travel, which means the scooter can absorb bumps and potholes more effectively. This can make a big difference on rough roads, reducing fatigue and making your ride much more pleasant. Conversely, a lower rear shock might feel stiffer and transmit more road imperfections to the rider. Thirdly, there’s the aesthetic aspect. Some riders prefer the look of a slightly raised or lowered rear end. While this is subjective, it's still a valid consideration. After all, you want your NMAX to look good, right? But remember, don't sacrifice performance and comfort just for looks. It's all about finding the right balance.

Understanding Stock Height

Before you go messing around with different shock heights, it's crucial to understand the stock height of your NMAX 2018's rear shock. This is the baseline that Yamaha designed the scooter around, and it provides a good starting point for comparison. Typically, the stock rear shock height for the NMAX 2018 is around 335mm. However, it's always a good idea to double-check this measurement on your specific bike, as there might be slight variations.

To measure the stock height, you'll need a measuring tape or ruler. Make sure the scooter is on a level surface and supported so that the rear wheel is off the ground. Measure from the center of the lower shock mount to the center of the upper shock mount. This will give you the actual length of the shock. Knowing the stock height is essential because it allows you to accurately determine how much you're raising or lowering the rear of the bike when you install a new shock or make adjustments. This will help you predict how the changes will affect handling, comfort, and stability. Also, keep in mind that changing the rear shock height can also affect the front-end geometry, so it's something you need to consider as a whole. Knowing the stock height will help you make informed decisions and avoid any unwanted surprises.

Options for Adjusting Rear Shock Height

So, you're ready to make some changes? Great! There are a few different ways you can adjust the rear shock height on your NMAX 2018. Let's explore some options:

• Adjustable Shocks: One of the easiest and most effective ways to adjust rear shock height is by using adjustable shocks. These shocks come with threaded bodies or adjustable mounts that allow you to easily raise or lower the ride height. Brands like YSS, Ohlins, and KTC offer adjustable shocks specifically designed for the NMAX. These shocks not only provide height adjustability but also often improve overall suspension performance.
• Shock Extensions: Another option is to use shock extensions. These are essentially spacers that you install between the shock and the frame, effectively lengthening the shock and raising the rear of the bike. Shock extensions are a more affordable option than replacing the entire shock, but they may not offer the same level of performance or durability. Plus, using extensions can sometimes put extra stress on the shock mounts, so it's essential to choose high-quality extensions and install them correctly.
• Modified Shock Mounts: For those who are more mechanically inclined, modifying the shock mounts is another possibility. This involves either fabricating new mounts or modifying the existing ones to change the shock's mounting position. However, this option requires a good understanding of suspension geometry and welding skills, so it's not recommended for beginners. Incorrectly modified shock mounts can compromise the structural integrity of the bike and create unsafe riding conditions.

Considerations Before Making Changes

Before you start wrenching away, there are a few important things to consider. Making changes to your scooter's suspension can have a significant impact, so it's essential to do your homework and plan accordingly. First off, think about your riding style and what you want to achieve. Are you looking for sharper handling, more comfort, or just a different look? Your goals will help you determine the ideal shock height for your needs. Next, consider the impact on handling. Raising the rear will generally make the steering quicker and more responsive, but it can also make the bike feel less stable at high speeds. Lowering the rear can improve stability but might make the steering feel sluggish. Thirdly, think about the impact on comfort. A taller rear shock can provide more suspension travel, which can improve comfort on rough roads. However, it can also change the seat height, which might not be comfortable for all riders. Fourthly, be mindful of clearance issues. Raising or lowering the rear too much can cause the tire to rub against the fender or other parts of the bike. Always check for adequate clearance after making any adjustments. Finally, consider the overall balance of the bike. Changing the rear shock height can affect the front-end geometry, so it's essential to maintain a balanced setup. You might need to adjust the front suspension to compensate for changes in the rear. Remember, it's always a good idea to consult with a qualified mechanic or suspension specialist before making any major changes to your scooter's suspension.

Step-by-Step Guide to Adjusting/Replacing Rear Shocks

Alright, ready to get your hands dirty? Here’s a general step-by-step guide to adjusting or replacing your NMAX 2018's rear shocks. Keep in mind that specific steps may vary slightly depending on the type of shocks you're using, so always refer to the manufacturer's instructions. Safety first, guys! Make sure your scooter is stable and secure before you start.

1. Gather Your Tools: You'll need a few basic tools, including sockets, wrenches, a jack or stand to lift the rear of the scooter, and possibly a torque wrench. Having the right tools makes the job much easier and safer.
2. Prepare the Scooter: Place the scooter on a level surface and use a jack or stand to lift the rear wheel off the ground. This will allow you to access the rear shocks more easily.
3. Remove the Old Shocks: Locate the bolts that secure the rear shocks to the frame and swingarm. Use the appropriate sockets or wrenches to loosen and remove these bolts. Be careful, as the shocks may be under some tension. Once the bolts are removed, carefully remove the old shocks.
4. Install the New Shocks: If you're installing new shocks, now's the time to do it. Align the new shocks with the mounting points on the frame and swingarm. Insert the bolts and tighten them to the manufacturer's specified torque. If you're adjusting the height of your existing shocks, make the necessary adjustments according to the manufacturer's instructions. This might involve turning threaded collars or adjusting the position of the shock mounts.
5. Check for Clearance: After installing the new shocks or adjusting the height of the old ones, check for adequate clearance between the tire and the fender, as well as any other parts of the bike. Make sure nothing is rubbing or interfering with the movement of the suspension.
6. Test Ride: Before you hit the road, take the scooter for a short test ride in a safe area. Pay attention to how the suspension feels and make any necessary adjustments. It might take a few test rides to fine-tune the suspension to your liking.

Finding the Perfect Height for You

Finding the perfect rear shock height for your NMAX 2018 is a personal journey. What works well for one rider might not work for another. It's all about experimenting and finding the setup that best suits your riding style and preferences. Don't be afraid to try different heights and see how they affect the handling and comfort of your scooter. Start with small adjustments and gradually work your way up or down until you find the sweet spot. Keep in mind that it might take some time and effort to dial in the perfect setup, but the results will be well worth it. And remember, if you're not comfortable making these adjustments yourself, don't hesitate to seek help from a qualified mechanic or suspension specialist. They can provide valuable guidance and ensure that your scooter is set up safely and correctly. Happy riding, and may your NMAX always handle like a dream!