[echo7]

Hi All,
I have a question about the Seven 5e fork.
I have 10mm spacer below stem and 10mm above stem. Can I move my stem up (20mm spacer below stem, no spacer above stem)?

'emailed Seven but no reply as of yet.

 

[TopQuark]

Hi All,
I have a question about the Seven 5e fork.
I have 10mm spacer below stem and 10mm above stem. Can I move my stem up (20mm spacer below stem, no spacer above stem)?

'emailed Seven but no reply as of yet.

You'll need at least 5mm (Seven typically puts in 10mm) above the stem so the steerer protrudes slightly above the stem. If the steerer is below the stem, the compression plug will likely be situated lower than the stem. As such, the stem clamp force will put pressure on the unsupported carbon steerer instead of the compression plug.

 

[echo7]

thanks Topquark
It does make sense to put the stem below the steerer tube..

I had a chance today to check the stem and the innards of the fork..
I noticed that the seven stem cap diameter (the one that goes in the steerer tube) is 23.54mm while the inner diameter of the fork is 23.55mm.. so Basically the top cap also helps support the top part of the fork for breakage.

I took pictures and will post later..

Of course the best is always put 2-3mm extra steerer as you recommended.

 

[echo7]

just a follow up..

I received a reply from Seven..

Thanks for getting in touch. There are no requirements to have any spacers above the stem when using our fork. However, the maximum spaces height below the stem is 3 cm.

We hope this helps. If you have any other questions, please let us know.

I guess because the part of top cap that goes into the fork (about 1cm) would support the compression of the stem bolt..Im attaching pictures in case someone would have the same question..

 

[TopQuark]

Looks like a Reynolds top cap. Since it is press fit, it is likely safe. It's been a general rule that the steerer tube shall extend above the stem. This is so it can accommodate any top cap design available. Yours is an exemption.