Sigma 1609 sts instructions not included trailer

Save sigma 1609 sts to get e-mail alerts and updates on your eBay Feed. Unfollow sigma 1609 sts to stop getting updates on your eBay feed. You'll receive email and Feed alerts when new items arrive. Free download of your Sigma Sport BC 1609 STS User Manual. Still need help after reading the user manual? Post your question in our forums. I have a wireless Sigma 1609 sts with out the cadance sensor on my bike. I have about 5,900km on the unit. I am currently on my 4th set, for the computer and fork sensor, of batteries for the unit, this includes the set that comes with the unit.