Calculate Frame Stack and Reach

This calculator is offered to you as a service of St Joris Cycles. Given the handlebar stack and reach data from a dynamic bikefitting session (of SportMax), it calculates the frame stack and reach you need to look for in your search for a correctly-sized bike frame that matches with your personal bike position.

Disclaimer: St Joris Cycles is not responsible for the correct sizing of your bike. Find yourself a good bikeshop to help you to adjust the frame/bike of your choice according to your dynamic bikefitting data and assure yourself that your position is as intended. The purchase of a correctly sized bike or frame remains solely your responsibility.

If you have any questions or remarks, please send us an email!