SRX M10
New member
I am looking for a secondary helix suggestion for trail riding. The sled came with a maxx performance purple primary spring , the angle markings have been chisled off the helix so I want to start with a new one. The tech pages don't have any info for heavy hitters. Looking for corner to corner performance with good backsift 50/40? 51/43? I also have a silver secondary spring and a green. Thanks.