PUSH Industries, the company responsible for the drool worthy ElevenSix rear sock, have just released a drop-in coil spring kit for Fox 36's and Rockshox Pike forks. The ACS3 (Advanced Coil System) will allow riders to remove their existing air cartridge system and replace it with a coil spring and an air bump-stop that allows them to receive the benefits of 'coil-like' performance with the ability to tune the bottom out independently of the spring rate. 

• Five ways to tell your shock needs a service

• Off-Road Opinion: To Pack Or Not To Pack

This means that forks will be really sensitive to small bumps, then ramping up at the end of the travel to prevent a harsh bottom out. 

“The popularity of the Elevensix rear shock lit a fire under us to offer that same level of 
performance to the front end of our customers’ bikes,” said PUSH’s Darren Murphy.

PUSH also says:

• The system is purpose built to dramatically enhance small bump performance and full-range tuneability. 
   
• The ACS3 can be tailored to offer specific performance characteristics throughout the entire range of travel. 
   
• Coil springs available in seven different rates while the pneumatic bump-stop can be adjusted between 5 and 50psi. 
   
• Retail price $389 (USD)
   
• 2015 through 2017 Fox 36 Float or Talas 160mm kits are available NOW.
   
• Fox 36 140, 150 and 170mm travel models and 2018 140-170 kits arrive in late July.
   
• Rockshox Pike kits Coming Soon.
   
• RockShox Lyrik/Yari will NOT be offered due to the small inside diameter of the stanchion tube.
   
• UK pricing available soon.