The more all-conditions ready little brother of the Pro R. There’s no reason to beat around the bush – last year at this time Polaris let us borrow a RZR Pro R Ultimate. After months of hearing about the performance of the naturally aspirated ProStar Fury 2.0 (that’s 2 as in liters or 2,000cc) four […] More »

How to freshen up all the fluids on your Quadrunner 250. Dear ATVC: Greetings everyone glad to be on this network. Does this quad have a drain bolt to change the shaft drive oil? The Quadrunner 250 doesn’t use a separate oil supply for the final drive but it does have front and rear differentials […] More »

Narrow diameter bars need more support. Dear ATVC: I noticed some race machines have handlebars that curve down into the clamps with no crossbar while others have a cross member usually with a pad on it. What’s the difference and which is better? “Better” in this case is a tough one to answer because it […] More »

It’s all about those descents. Dear ATVC: Hi, I’m researching oil for my quad and some recommend oils for quads with and without ADC. I’d like to know what ADC is and if my quad may have it. It’s a 2007 Polaris Sportsman 700 EFI with a 2008 800 EFI engine. Thanks. ADC stands for […] More »

Yes it’s real. No it isn’t the same as the CDI. Dear ATVC: I have a 2002 Yamaha Big Bear 400 with electrical problems. I am trying to find out the purpose of the Motor Control Unit. It is different from the CDI box and I am trying to determine whether or not it’s functioning […] More »

A parts giant topples. Dear ATVC: I just went to order a new shifter for my Bayou and even though Bike Bandit’s site is still up, I heard they are out of business. Is this true? How is that possible? On February 7th, Bike Bandit filed for Chapter 7 Bankruptcy in San Diego. They were […] More »

Dear ATVC: Just read your article about octane rating and found it very informative. I do have a question, though. Are octane ratings the same all over the world? Here in Europe, our numbers a much higher than yours. You can get 95 and even 98 octane at the pump. Do we just have higher […] More »