Push ACS3 Coil Conversion Kit
Words & Photos by Chili Dog
If you’ve been around long enough, you’ll notice that the cycling industry, and the world for that matter, is cyclical. It seems the old saying that history repeats itself really is true. When I first started riding, coil suspension was all the rage. Air was around, but just couldn’t compare to the sensitivity and performance of a coil. Times changed, and air suspension got better. In fact, pretty much every bike these days comes spec’d with air suspension front and rear. Recently we’ve begun to see a push back (pun intended). As good as air springs have gotten, there are people that still yearn for the supple, sensitive feel of a spring. Push Inudstries caters to those people. A few months ago they sent us their ACS3 coil conversion kit for 2015-2019 FOX 36 FLOAT and TALAS forks and we couldn’t wait to install it in one of our test forks.
Inside the box you’ll find a Push coil, new spring side lower rod assembly, preload adjustment spacers, and an air bump stop unit. To control the progressiveness of the fork, the bump stop unit lets the rider have a pressurized chamber that fine tunes the end ramp of the fork, while the coil controls the beginning and mid stroke. The ACS3 is hand assembled from components that are 100% manufactured in Colorado.
An advantage of the coil kit is that coil springs generally have better sensitivity than air springs. As a result of having to contain air pressure internally under load, air cartridges have tight seals that result in friction. That friction causes stiction, and can take away from your fork’s ground tracing abilities. And that’s assuming a rider will take the time to properly lubricate and maintain their equipment. Slack on maintenance and your air spring is going to get even stickier. The Push ACS3 kit is relatively easy to install (check out Push’s video here) but rewards riders who take the time to get it perfect. Because coils aren’t adjustable, it’s also vital that a rider select the correct spring weight for their weight and riding style. Push offers a full line of springs to make that possible.
For many riders, one ride aboard a new GRIP 36 is enough to prove that air has come an amazingly long way and works just fine for their needs. But for those with specific needs or a refined palate, the benefits of going coil may be greatly appreciated.
Keep in mind though this modification is NOT reversible, and will void your Fox or Rock Shox warranty.