text: ShockStop Seatpost: Add Suspension to Your Bike by Redshift Sports » FAQ — Kickstarter
  Absolutely - We designed the ShockStop Seatpost so that you can adjust it to perfectly match your weight and riding style. After the Kickstarter campaign is completed, we'll send out a Backer Survey to collect information about your order. In that survey, you'll select a specific spring installation based on your body weight (don't worry, we'll provide plenty of guidance). The selected spring will be come pre-installed in the seatpost. Next, you'll use the preload adjustment knob at the bottom of the seatpost to adjust the spring preload - the amount of force required to cause the saddle to start moving. Together, the stiffness and preload allow you to dial in the feel to your exact preference.
  Last updated: Tue, Apr 10 2018 8:42 am EDT
  The seatpost ships with one spring of your choice. After the Kickstarter campaign is completed, we'll send out a Backer Survey to collect information about your order. In that survey, you'll select a specific spring installation based on your body weight (don't worry, we'll provide plenty of guidance). The selected spring will be come pre-installed in the seatpost. If, in the future, you decide that you want to try a different stiffness spring, we will have other spring stiffnesses available for purchase at a substantial discount for Kickstarter backers.
  Last updated: Tue, Apr 10 2018 8:45 am EDT
  The seatpost is tested to the latest ISO 4210 standard for Racing & Mountain Bicycles. These standards typically specify "Static Strength" tests (i.e. one-time application of force) as well as "Fatigue" tests (i.e. repeated application of force) for different bicycle components.
  Last updated: Tue, Apr 10 2018 2:59 pm EDT
  Last updated: Tue, Apr 10 2018 11:33 am EDT
  Last updated: Tue, Apr 10 2018 11:34 am EDT
  Yes, the seatpost is compatible with mounting a Di2 battery - we're developing a ShockStop-specific mounting option and that will be offered as an add-on option in BackerKit after the campaign is complete.
  Last updated: Tue, Apr 10 2018 11:35 am EDT
  Your ShockStop Stem will ship with the Seatpost. If you'd like to get the ShockStop Stem earlier, we will offer an add-on shipping fee option after the campaign.
  Last updated: Tue, Apr 10 2018 11:38 am EDT
  Damping is important for MTB because you're trying to absorb larger amplitude impacts. For high-frequency, small amplitude perturbations, it's better to have a very lightly damped system to maximize responsiveness. The plunger seals provide enough damping to prevent unwanted movement of the post, but otherwise, the system is free to respond quickly.
  Last updated: Tue, Apr 10 2018 12:09 pm EDT
  Last updated: Tue, Apr 10 2018 12:14 pm EDT
  We will offer a prepaid option for those who would prefer to pay the taxes & duties up front. The shipping provider charges a fee of €10 for the prepaid VAT service (in addition to the tax and duty amount). We will continue to look for even easier and cheaper options to prepay VAT after the campaign ends. If you don't choose the prepaid service you will be responsible for any taxes, duties, and fees that are due on import.
  Last updated: Thu, May 10 2018 12:40 pm EDT
  Last updated: Tue, Apr 10 2018 1:45 pm EDT
  Is the ShockStop Seatpost compatible with my folding bike
  The ShockStop Seatpost is 27.2mm in diameter and 350mm long. Typically, folding bikes use very long seatposts in larger diameters. But, many folding bikes come with and can work with telescopic seatposts. These allow you to use a standard seatpost like the ShockStop by adding an extension that fits into the bike and accepts the standard seatpost. Check with you local bike shop or bike manufacturer to see if one of these is available and if it accepts 27.2mm seatposts. An example of one that accepts 27.2mm seatposts is the Tern telescopic seatpost: https://www.ternbicycles.com/us/gear/471/telescopic-seatpost