Finding the perfect dropper post length for your bike has never been easier. Just confirm your seatpost diameter, take two quick measurements, and let the Reverb AXS Calculator do the rest. Here’s what to measure: 1️⃣ Saddle height — from the top of the seatpost clamp to the center of your saddle rails (in mm) 2️⃣ Maximum insertion depth — check your frame specs or measure by inserting a tape measure down the seat tube until it stops. The distance from the stop point to the top of the seatpost clamp is your max insertion. Ready to dial in your perfect length? With dropper lengths between 100mm and 250mm, you can find the right fit for smooth control on every ride. Tap the link in our bio to try the Reverb AXS Calculator. Video by @gzelaeu #RockShox