I have the Trifox sdy20, very light hard tail paired with a sid ultimate sl 100mm. My other bike is a lexon 258 with a 120mm sid ultimate. Also a very nice bike, maybe not the most modern geo but looks and rides very well.

I've got the bike on order.  Can you tell me what the chainline is?  52 or 55?  Would you use the M8100 or M8120 shimano crankset?

I ended up getting the Trifox. It does have 3 ports in the headtube, allowing for the internal dropper cable.

Overall, the quality is v good. I weighted the bare large frame at 912 grms.

Supplied seatpost is rubbish, a good bit less than 30.9, so loose in the frame and slipped during 1st ride. Dropper in there now.
The rear brake threads were tight, and I needed to add washers to the caliper bolt as the hole in the frame was not that deep.
The rear derailleur exit port was poor. I needed to dremel out the insert so I could feed in the outer casing.
I got the 740mm trifox flat bars, seem good quality and I weighed them at 152 grms.
Threaded BB is nice, 73mm so no spacers required.
2.35 maxxis tyres fit fine with good clearance.
The rest of the build was XT/SLX mix. Wheels are ztto microspline hubs with carbonbearm rims. 1450 grms. Snail china xtr chainring copy is nice.

I have frame on order. Which size dropper did you get?  I got the medium frame but have waiting on the bike so i can confirm insertion depth. Do you have any pictures of what you had to do to the derailleur exit port?  Worried about that one.

I ended up getting the Trifox. It does have 3 ports in the headtube, allowing for the internal dropper cable.

Overall, the quality is v good. I weighted the bare large frame at 912 grms.

Supplied seatpost is rubbish, a good bit less than 30.9, so loose in the frame and slipped during 1st ride. Dropper in there now.
The rear brake threads were tight, and I needed to add washers to the caliper bolt as the hole in the frame was not that deep.
The rear derailleur exit port was poor. I needed to dremel out the insert so I could feed in the outer casing.
I got the 740mm trifox flat bars, seem good quality and I weighed them at 152 grms.
Threaded BB is nice, 73mm so no spacers required.
2.35 maxxis tyres fit fine with good clearance.
The rest of the build was XT/SLX mix. Wheels are ztto
microspline hubs with carbonbearm rims. 1450 grms. Snail china xtr chainring copy is nice.

The Trifox sdy20 is 73mm bb?  Site has it listed as BSA 68mm.  Can you confirm?

taking a look.  not listed on their website

@spcycle - What is the difference in your SP-M016 model and the SP-M08?  Looks similar except the geometry of the M016 is much more slackened (head angle 67 vs 70).  Is that right?  Can I route dropper, rear brake, and derailluer cables internally?  The geo specs are assuming what size fork?  What is the max chainring?  What is the max rotor size that fits the rear?

This looks like it checks a lot of boxes:  slacker design, bb 73mm threaded, 2.4" tires max, boost spacing.  I just bought a new full suspension but looking to do a fast hardtail