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What To Look for In A 125cc Go Kart

Choosing one’s rig is inherently subjective, making it challenging to provide helpful guidance on the topic. Racers have a wide range of preferences, from ultra-light chassis to innovative add-ons that offer them an advantage. There are just two distinct chassis tubing options for 125cc go-karts, and each has its unique advantages and disadvantages.

It is essential that a kart chassis can accommodate a 125cc engine since this is the most common size used in the sport. All adult-classified chassis are similar in size, yet even the slightest variations may be crucial at the highest levels of competition.

To keep the weight down and make the most of the smaller, less powerful engine, practically all 100cc kart chassis are designed using 30mm moly tubing as standard. If you go with a kart intended to operate with a lower cc engine, you won’t have nearly as much space to install a more powerful motor.

Choosing a chassis from a manufacturer with a physical facility near you is preferable to always play the internet guessing game in search of replacement components. In addition, it’s a lot of fun to meet locals who share your passion for go-karts and may provide advice on maintenance or chat with you about the latest innovations.

How To Find an Affordable 125cc Kart

Want to find an affordable go-kart? Don’t be afraid! Buying a used vehicle is a no-brainer, particularly if you need to save costs in other areas. Used isn’t the same thing as awful. You may acquire your kart for a lot less money since so many individuals test out new gear and then sell it when they discover something they like more.

You don’t have to buy everything online as I do, but it’s helpful to see what others are selling used kart chassis and components for on places like eBay. My father and I would spend our free time at the track chatting to spectators and workers for various reasons on race weekends.

First, we made many wonderful friends by being kind and helpful wherever possible. However, the essential benefit of being a pleasant person at the karting track is that people who have more money invested in karting than you will think of you when they want to sell their old, barely-used equipment.

In addition, you should make a point of regularly engaging in conversation with the track’s proprietors and marshals. They often upgrade the rental karts, which means they usually have excellent replacement parts and sometimes whole rigs for sale.

It’s also a good idea to check the websites of kart manufacturers to see if they have any deals planned to coincide with the launch of their newest products. For instance, you can guarantee that when Top Kart and CRG release their most unique rigs, last year’s models will be valuable.

What Kart Would I Purchase?

Picking the Margay Brava 125 was a no-brainer. Margay is well-respected in the industry due to the company’s ability to tailor each customer’s racing kart to their specific needs.

Instead of having to fumble with the kart’s bare chassis yourself, they’ll take your measurements and make the necessary adjustments based on your height and weight. Even though they are still a relatively young company, Margay has quickly become one of the most formidable competitors in the American karting scene.

The 125 chassis is one of the most adaptable since it can be used with any 125cc engine today (for example, Tony Karts are often raced with Rotax engines more than any other).

It’s not as cheap as a Tony-Kart chassis, but it’s still more affordable than many other options. Perhaps it’s because I have a soft spot for up-and-coming or out-of-the-ordinary solutions, but the Margay Brava has won me with its stylish appearance and thoughtful construction.

How Much Horsepower Does A 125cc Go Kart Have?

Here are some 125cc go-karts and their horsepower:

  • Vortex RoK GP = 36HP
  • Rotax Max EVO = 30HP
  • X125T = 30HP
  • CRS Motori A1 Engine = 30HP
  • IAME X30 = 28HP

While it’s true that less horsepower means a slower peak speed, not all of the hype around horsepower is justified. You can always increase your vehicle’s power by tuning and upgrading the engine. Though challenging, developing a specific machine can be a labor of love and an enriching experience when you succeed in pushing the envelope.

To illustrate how uniquely diverse each engine is, consider the X30 even though it has the fewest horses of the group, many kart racers like it and utilize it in competition, especially against those who use the X125T. It is possible via tweaking; the team decided to do so since the engine allows an additional two horsepower.

The IAME X30 is well-known as a dependable and low-cost go-kart engine option. Also, its mechanical components are more recognizable to most drivers, making repairs a breeze. 

How Much Maintenance Does A 125cc Go Kart Need?

Compared to lower-class go-karts, the most significant difference in maintenance for a 125cc machine is the increased frequency with which the engine must be inspected. Since you’ll probably be using a 2-stroke, your motor will have to put in a lot of extra effort.

What’s more, kart maintenance is performed in much the same way as it is for any other kind of vehicle.

If you make it a habit to double-check everything, doing so will seem less like work and more like second nature. When anything goes wrong with something you own, the onus is on you to fix it.

  • Do oil changes every 25 hours, more often on racing weekends.
  • Please remove the spark plug, clean the electrodes, and reassemble it using graphite grease. Every year, you should change the spark plug.
  • Monitor the tread depth of the tires and carry a minimum of three pairs of tires at all times.
  • Check brake pads and discs and maintain two or three additional sets of brake pads to replace them when they’ve worn down;
  • Bleed the brakes once every two weeks, or more often if you feel the brakes losing response.