You really have to know yourself Adrian, as in what stem and bars at what length/height you will be riding it with. Basically, figure what spec numbers matter most to you and base the frame size on that. Look at the numbers and know what you're comparing carefully ! Seat tube height only matters that you have enough, as in it's not slammed to the seat lug. Otherwise the fit is all about forward reach and the height of the front end and if it allows you to position the bars where you want them. If it's too high even with a very(-25/35d) negative rise stem you're at a dead end. Same if the front length is insufficent. In those cases you're better off with something else. On Tuesday, April 1, 2025 at 8:18:05 AM UTC-4 Dan wrote:
> I have a 57cm Roadini. I’m 6’ tall with a PBH of ~89 and saddle height of > 77.5. You can see what this looks like below. It’s a tall bike, especially > when you figure in the extra stack from the headset! I think the lowest I > could put the bars is maybe 2-3cm below the saddle. As shown they are maybe > 1-2cm above the saddle. > > From what you’ve said about yourself, if you want to run drop bars then a > 54 may be your best bet. Sounds like that matches the bikes you have > already too. If you want to run alt bars, well, see if you’d be comfortable > with the standover height on the 57! > > [image: IMG_0017.jpeg] > > > > On Tuesday, 1 April 2025 at 09:23:30 UTC+10:30 [email protected] wrote: > >> Good morning everyone! >> >> I'm looking to get prepared before the roadini launch later this year - >> I'm just slightly confused about sizing. >> >> I have an 85.5ish PBH, so I'm straddling the line of both the 57 and 54. >> I know Grant has a funky philosophy on sizing, but man is it hard narrowing >> it down. >> >> I've owned a 56cm Surly Midnight Special and a 55cm All City Zig Zag. >> When comparing them on bikeinsights to a 54cm Roadini, they're somewhat >> similar. When looking at the 57 on insights, it looks waaaaaay way way >> taller. I understand their stacks are usually higher but should I be >> conservative when selecting a size? Size down? Size up? >> >> What's everyones experience with their modern roadini? >> > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/rbw-owners-bunch/205ad3d0-a2f0-405c-a76a-e4a244b3e7c0n%40googlegroups.com.
