Dropper Post Calculator

Knolly's handy dropper post calculator will help you maximize your dropper post travel range in our frames. Please select your frame size and your seat collar to rail length and let the calculator do the work!

For the convenience of other riders, we also offer this calculator for non-Knolly frames. However, these results should be considered unofficial and since we do not control the manufacturing or specifications of other companies' products, it is ultimately up to the customer to confirm results.

Don't see the post you are interested in? Reach out and we'll add it to the calculator!

A B
Step 1 (Measurement A) ?

Raise your seat to your desired saddle ride height, and measure from the seat post collar to the seat rail.

Step 2

Select your Knolly model and size.

Step 2 (Measurement B) ?

Insert your seat post as far into your frame as you can without forcing it, and mark the top of the seat post collar on the seat post. Remove your seat post and measure from the bottom of the post to the seat collar mark.