Giant anthem 2 27.5 setup

hi all
So my bike arrived in the post today.
Front wheel was removed, so were the handle bars.
I've received my road bike before in the post, so have some VERY basic setup skills, and wanted to make sure I'm not doing anything wrong.
So a few questions please to the gurus out there:
1- when I inserted the seat post and saddle, there was a warning if I push it all in I may damage the bike? There is NO MAX LIMIT OR LINE on the seat post that says do not insert any further? I just pushed it all the way in till it hit metal, then pulled it out a little and tightened?
2- the front wheel has a 15mm axle. I tightened it to the Max and the locked the release lever? Should I not tighten to the MAX?
3- I do not have a stand, so I was working on the bike upside down. Are the bottoms of the shox supposed to be hollow and exposed? Isn't there a plastic cap or something to cover them from the elements?
Pics attached!!
Bike with heavy steel wiggle pedals and some wrapping still on the shox at 12.69kgs. Impressed with the weight for a full susser...


So my bike arrived in the post today.
Front wheel was removed, so were the handle bars.
I've received my road bike before in the post, so have some VERY basic setup skills, and wanted to make sure I'm not doing anything wrong.
So a few questions please to the gurus out there:
1- when I inserted the seat post and saddle, there was a warning if I push it all in I may damage the bike? There is NO MAX LIMIT OR LINE on the seat post that says do not insert any further? I just pushed it all the way in till it hit metal, then pulled it out a little and tightened?
2- the front wheel has a 15mm axle. I tightened it to the Max and the locked the release lever? Should I not tighten to the MAX?
3- I do not have a stand, so I was working on the bike upside down. Are the bottoms of the shox supposed to be hollow and exposed? Isn't there a plastic cap or something to cover them from the elements?
Pics attached!!
Bike with heavy steel wiggle pedals and some wrapping still on the shox at 12.69kgs. Impressed with the weight for a full susser...



0
Posts
1. I'd be amazed if there is no minimum insertion mark on a seatpost - you need to set the sadle to correct length for your legs just as on a road bike
2. If it is a screw-thru front axle make sure you grease the threads well and do not overtighten
3. Yes this is normal on latest forks - it save weight
there are various measurments on the seatpost but NO max line or warning?
ill upload a pic
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Just had my first spin on it....coming from a road bike background....absolutely loved it...
Did not feel heavy at all...
would that be OK?
Did yours also come with a RockShox Monarch RL?
My Giant Anthem that I ordered is speced as a RockShox Monarch RT, on the Giant website and on the website where I bought it from.
The bike I received today has a RockShox Monarch RL?
Also, should the rear brake cable be routed externally like that? I thought it's internally routed? Did yours arrive like mine as well?
I thought the rear brake cable goes in to the bottom tube, and emerges here:
Cracking bike btw...
is it something i can do myself? or best to get a lbs to do?
and is there enough space for TWO cables to enter the bottom tube on the left side?
As for if its easy to do, depends on the brakes really, shimano ones are pretty simple, I followed this guide http://www.epicbleedsolutions.com/blog/shorten-shimano-hoses-without-bleeding/ I was shortening mine at the same time. You will need a new olive and barb for the hose after you take the originals out (you'll need to in order to remove the bolt that hood the hose in the lever)
The brakes that came on my bike are avid elixir 5. They are the only thing I don't like on my bike. Might as well change them to shimanos.
Can you suggest a set that will sit nicely with the SRAM X7 shifters I have already on the handle bar?
I also like the idea of "rubber bungs" for double cables.
Do you know a particular one you can point me at that I can buy?
Thanks
All the spares, part numbers and details on cable routing etc can be found here. https://www.giant-bicycles.com/_upload_cz/bikes/models/manual/MY14%20GIANT%20Off-Road%20Bicycles%20Service%20Info.pdf Says 2014 model year but the frames haven't changed