Builders can be odd people however such as those builders that only offer a 30.9 mm seat tube rather than 31.6 mm (essentially the same weight dropper but without the seat collar pinch issues) essentially choosing to use what is easier or cheaper for them to source rather than use what is best for the customer.
I am not saying it is the same decision making process with the HT head set spec however there is some weird in the world when it comes to choosing HT length, especially on L and XL frames in longer travel uses. It is pretty easy to imagine that there are going to be some horrible forces going into the head tube on an XL 160-170 mm travel bike.
May 8, 2023, 9:24 a.m. - AndrewR
Builders can be odd people however such as those builders that only offer a 30.9 mm seat tube rather than 31.6 mm (essentially the same weight dropper but without the seat collar pinch issues) essentially choosing to use what is easier or cheaper for them to source rather than use what is best for the customer. I am not saying it is the same decision making process with the HT head set spec however there is some weird in the world when it comes to choosing HT length, especially on L and XL frames in longer travel uses. It is pretty easy to imagine that there are going to be some horrible forces going into the head tube on an XL 160-170 mm travel bike.