I found manufacture making 20L tank out from 304 stainless.
I contacted them and quoted about 194000yen(about $1750 @110yen) w/o shipping and take about a month.
The tank seems solid and pressure tested before shipping.
The challenge is they don't take credit card and only wire transfer which...
I have 2020 VMAX and I believe there is no difference in frame since 2009. Yamaha Service manual is 2017-2020 so there might be some difference but not exactly sure which is changed(or not even changed anything)
I still have Sato Bar if you are interested, I can put it on ebay if you want.
I had this Sato one before SSB crash bar.
SATO RACING Frame Sliders - Yamaha VMAX 1700 2009-2019 [Y-VMAX09FS-BK] | eBay
Luckily I haven't used it but I saw some bike crash video on Youtube, I see same kind(not Sato) bar snaps in hard crash.(well its end of bike anyway kind crash).
I believe, the...
I just got Engine guard(Crash bar) on my VMAX yesterday and post here, if you are interested.
https://www.vmaxforum.net/threads/vmax-1700-engine-guards.48159/post-497629
I had SATO racing crash bar on ebay, but this one is much stronger (and cost x4 more lol)
I ordered crash bar from Japan( SSB for Yamaha V-MAX 1700 – SSB Factory Japan )
They make one by order so took about 1month to my door. After they shipped the item with UPS global, it only took 3 days to Seattle.
You need to mod bottom of air intake cover but fitting is just perfect...