Extreme KartzWe aren’t a call center - we are a team of golf cart experts. We specialize in offering a wide range of golf cart parts and accessories for Club Car, EZGO, Yamaha, Icon, and Evolution Golf Carts. Take your cart to new heights with our top sellers, including high-performance Lithium Batteries, body kits, lift kits, Navitas kits, wheels and tires, and Custom Seats tailored to your preferences.
Extreme Kartz (extremekartz.com) has 250 customer reviews on Five Star Index, with an average rating of 4.6 out of 5.
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Showing 209 reviews with 5 stars · Clear filters
Kelle M.
I have now installed 4 conversion kits and have zero issues. The staff has been incredible and go about and beyond. I was having an issue after installing one and the staff was very helpful and i was able to trace the issue down to the Modular.
Response from Extreme KartzMay 7, 2026
Thanks for the kind words Kelle! It is always a pleasure working with you and we can't wait to help you with future builds!
Josh P.
I ordered a Bolt 48v lithium battery from Extreme Kartz after many hours of reading through their Lithium battery comparisons which were a huge help and ultimately the reason I ordered through them, because it goes above and beyond what other online retailers are doing and the lithium battery rabbit hole can be a big one to fall into. Shipping was quick, communication was great and the product arrived just as advertised. I will definitely use Extreme Kartz again!!
Response from Extreme KartzMay 4, 2026
Thanks for the kind words Josh! We can't wait to assist you in the future!
Sean I.
Great experience with fast shipping and also information and instructions. Definitely will go to this site again for all golf cart purchases. Also most competitive prices out there.
Response from Extreme KartzApr 28, 2026
Thanks for the kind words Sean! We can't wait to help you with future builds!
Mike B.
Excellent products. Just finished upgrading my Club Car batteries to the Bedrock 105AH Lithium Battery. The products came packaged very neat and organized. The battery was shipped in a very nice wooden crate. Installation directions were spot on. Looking forward to some summer cruising.
Response from Extreme KartzApr 27, 2026
Glad to hear you are enjoying your new Bedrock Battery! We can't wait to help you with future upgrades!
Consumer
I did my lithium conversion by myself and everything went together perfectly. Will definitely be upgrading my cart more from extreme kartz
Response from Extreme KartzApr 27, 2026
Happy to hear that your installation went well! We can't wait to help you in the future!
Mike A.
Ryan Hart answered all my questions via email and was very helpful and knowledgeable. Ordered a lithium conversion kit today.
Response from Extreme KartzApr 24, 2026
Thank you for the kind words! Ryan is definitely a rockstar! We can't wait to help you in the future!
Quintin G.
I initially was having a rough experience with my purchases but after contacting the customer support team, I’m more than satisfied with my experience. I enrolled in the dealer program and can’t wait to do future business with them. Definitely recommend to others.
Response from Extreme KartzApr 20, 2026
Hey Quintin! Thanks for the kind words! We hate to hear you had a rocky start but glad we were able to make this right for you! We can't wait to help you with your future builds!
William D.
The upgrade installed on my 2014 Club Cart provided by Extreme Kartz was exceptional! One of the easiest installs I’ve ever performed ( minus the awkward position in lifting a 52lb motor)! All cables clearly identified a labeled and that with online instructions any novelist can complete this install in a day.
Response from Extreme KartzApr 17, 2026
Hey William! Glad the install went well and you are enjoying your upgrade! We can't wait to help you in the future!