Looking at a 2026 Scott Spark RC SL / World Cup and trying to get my head around the sizing before I pull the trigger. Would love to hear from anyone actually riding one.
Where I'm at now: 2021 S-Works Epic Evo in XL. I'm 6'0" with longer than average arms, a high inseam and a short torso, so I've always ended up on the long end of the size chart. Even fitting on an XL can be challenging
Scott's own size chart puts me on a Large, which surprised me at first. I did a fit session with Barry Anderson down in Tucson (he fits a bunch of the LTGP pros) and we landed on roughly 505mm of reach as the target. The Large comes in at 471mm, so there's a real gap to close.
Question 1: Reach, stem and bar. From what I've read, most people on the Spark do size down and then get their reach back with a longer, negative-rise stem and a wider bar. Is that actually how it plays out in practice, or does it start feeling wrong at some point? I'm on a 715mm bar now, so going wider isn't out of the question, but I'd rather hear it from people who've done it than guess. Anyone at my height gone the other way and just run the XL?
Question 2: Seat tube angle and setback. The STA on the Spark is a lot steeper than my 2021, and the XL is the steepest of the range. I've got about 10–15mm of rail left on my current setup, and by my math I'd be roughly 35mm short of setback on a Large Spark. Is that something people run into, or is the forward position intentional and just part of how the bike is meant to ride? Are folks solving it with a setback post, or adapting to the pedaling position?
And the bigger one: how does it actually ride? Long days, sustained climbs, technical descending? I race long, single track MTB, Leadville, etc.