Please complete the following to register your OPEN for added warranty protection. Have a login already? Click here.

first name
last name
e-mail address
country of residence
time zone
OPEN model
serial number of your OPEN
(you can find it under the bottom bracket and looks like OPEN-1.0-####, OPEN-U.P.-#### or OPEN-U.P.P.E.R.-####)
bike's nickname
bought from
date of purchase (yyyy/mm/dd)

To help you and other customers better in the future, we’re trying to learn more about your bike fitting. We would really appreciate it if you would take just 1 minute to answer these questions (just skip the ones you can’t figure out):

your OPEN frame size
who determined frame size for you?
Are you satisfied with the frame size?
What is your overall height?
What is your inseam (no shoes)?
What is your saddle height?
(BB to top of saddle, measured along the seattube)
What is your stem length?
Pick the closest
year you were born
Would you like to show your bike in our showcase?