There should be several models that will fit him…esp if he is mostly legs as that will be more of a seatpost adjustment vs. top tube. Cervelo makes a 61 for starters in both agressive and less aggressive model
Just because a company uses tshirt-style sizing and “large” is their biggest size doesn’t mean it won’t fit him. I’m 6’6" and on a large Giant Trinity Advanced, though if your friend is long legged, that’s probably not the bike for him. I tend to have the opposite problem of longer arms/torso, so sorry I can’t be much help with specific recommendations.
Check out cervelo. They’ve got a good sizing for taller people. I thinks it’s mostly top tube length that is compatible. I’m 6’4" with short legs and used to ride a QR I got from Inside-Out -Sports. They’re good guys and I reccomend them.
Just because one is tall, do not assume you need a larger than life frame. I found this out when I bought my bike from Ves. I am 6’5". Sent him my measurements and he fitted me on
a standard 59 frame. Fits like a glove.
Take a look at the stack and reach tables. I am also tall (6’3") with long legs and can ride many frames comfortably. Start with fit coordinates and go from there.
(eg. Argon 18 biggest model i Large, not XL)
6’4", 89KGs on argon 18 e114 ‘large’ - like a glove, one stiff beast for big guys.
other big freaks riding it include(d ?) ain alar juhanson @195cm and 94KGs
also trjobeon sindballe who I think is about 193cm
Not saying it will fit your mate or its the best bet for him - just echoing what others are saying re. getting measured / fitted…
x2 - get a fitting and then your friend will not be gambling on a bike size.
Can’t disagree with the suggestion of having someone fit you.
As another data point, I’m 6’4" with a 38" inseam and fit on a 61 cm P2C. I was surprised at how much seat mast they shipped it with. I do move the saddle forward with a Arione Tri 2 saddle to shorten the cockpit just a bit.
Fit is one thing - availability is another, e.g. my experience with Cervelo when I was buying was that the wait time for a 61cm P2 was looong, 61cm P3 not so long. So having some schedule flexibility helps.
I am 6 3 and am just about all legs. I’m on a size large Blue Triad EX. Fits me perfectly.
The biggest thing is to have him go and get fitted. He might prefer to ride super steep and could make a longer/lower frame work for him. But until that fit happens… We all are just speculating.