Originally Posted by
benbammens
I suppose the stem is allready extracted to its max... So without the head-tube extender the handlebar would be to low...
Exactly. Stem is extended to the max. I either had to add 2 cm of spacers or use the extender. I opted to use the extender but could always remove it and use spacers instead. The headtube on my bike was 1.5 cm shorter than they told me it would be when I ordered. If it had been the right length, the extender (or spacers) wouldn't be needed.