Hero image for Frei Wins XCO Worlds on a Rainbow-Stripe Epic 9
By MTB Cycling Gear Team

Frei Wins XCO Worlds on a Rainbow-Stripe Epic 9


Sina Frei won the Elite Women’s XCO World Championship at Val di Sole on August 30, and by the numbers, it was the most one-sided ride of the week. She rode off the front alone, built more than a minute on the field, and crossed the line in 1:27:50 for the first Elite XCO title of her career, on a Specialized S-Works Epic 9 now repainted in custom rainbow-stripe world champion livery. We spent the days after Worlds writing up Jackson Goldstone’s stock V10, Vali Höll’s title-tying Commencal, and Tom Pidcock’s Dogma XC comeback from the same event. Frei’s win — arguably the most dominant of the four — got a single line in a stat table. That’s on us. Pinkbike’s own bike check of her rainbow-striped Epic 9 gives us the sourcing to fix it.

Quick Take

WinnerSina Frei (Switzerland), Elite Women’s XCO World Champion, Val di Sole 2026
Finish time / margin1:27:50, solo off the front, 1:07 clear of 2nd place
PodiumMartina Berta 2nd (Italy, +1:07), Nicole Koller 3rd (Switzerland, +1:07)
Titles1st Elite XCO World Championship (previously U23 world champion, 2017 and 2019)
BikeSpecialized S-Works Epic 9, custom rainbow-stripe world champion livery
Frame weight1,589g, per Pinkbike’s bike check
DrivetrainFull SRAM wireless — Eagle Transmission with an integrated Quarq power meter
Wheels / TiresRoval Control World Cup wheels, Specialized Air Trak tires
CockpitSeparate bar and stem, not Specialized’s integrated Roval Control one-piece cockpit
Best forClosing the biggest gap in our Val di Sole coverage
Skip ifYou want a full geometry or suspension-tune teardown — not all of it is published yet

The Result We Buried in a Stat Table

Frei’s race was decided early and never got interesting again, in the good way. Per the UCI’s own recap, she went clear on lap three with an 11-second gap. By lap six, that gap had grown to 56 seconds. She crossed the line 67 seconds up on Italy’s Martina Berta, with home-nation crowds watching a fellow Swiss rider, Nicole Koller, take bronze in the same time as Berta. Puck Pieterse — the rider most previews had pegged as Frei’s biggest threat — finished fourth, 1:25 back.

That’s not a sprint finish or a late-race gap that held on by fumes. That’s a rider who decided the race was over on lap three and then spent the next hour proving herself right. “It is a dream,” Frei said afterward, per the UCI. “I tried to push hard on the steep climbs and recover on the descents.” Simple description of a race plan that, in practice, nobody else in the field could answer.

How Did Sina Frei Win XCO Worlds Solo?

Three things had to line up for a lap-three attack to turn into a 67-second solo win, and none of them are luck:

  1. The attack has to actually stick. Plenty of XCO moves at lap three get reeled back in by lap five once the chase group organizes. An 11-second gap growing to 56 seconds means the field behind either couldn’t organize a chase or didn’t have the legs to close once Frei was clear.
  2. The lead has to keep growing, not just hold. Holding a gap is defense. Frei’s grew by 45 seconds across three laps, which is offense — she was faster than the group behind her on every lap she was out front, not just fast enough to survive.
  3. The rider up front has to manage a 90-minute solo effort without cracking. Riding alone means no draft, no tactical cover, and no pacing off anyone else’s rhythm. Frei’s own account — push the climbs, recover the descents — is exactly the discipline that keeps a solo lead from evaporating in the final laps.

Any one of those going sideways — the chase organizing on lap four, the gap plateauing instead of growing, legs going empty on the last lap — and this is a much closer race. None of them went sideways.

What’s Actually on the Rainbow-Stripe Epic 9?

Frei’s title bike is a Specialized S-Works Epic 9, the brand’s current top-tier XC race platform, dressed for Worlds in a custom rainbow-stripe scheme that replaced the blue-and-white European champion livery she’d been running since debuting the bike at the Les Gets World Cup in late August. Here’s the build, per Pinkbike’s bike check:

  1. Frame: S-Works Epic 9 FACT 12r Carbon, weighed at 1,589g on Pinkbike’s scale — light even by the standards of a category where sub-1,600g frames are the baseline, not the exception.
  2. Suspension: RockShox SID Ultimate Flight Attendant fork up front, 120mm travel, paired with a RockShox SIDLuxe Flight Attendant shock running Ride Dynamics and Magic Middle mode. Both ends read the terrain and switch damping states without Frei touching a lever — the same electronic auto-suspension logic we’ve put through six months of trail testing on our own bikes, here doing its job across 90 minutes of racing instead of a weekend ride.
  3. Drivetrain: A full SRAM wireless setup — Eagle Transmission, with an integrated Quarq power meter built into the crankset. No cables, no mechanical derailleur hanger to bend in a rock strike.
  4. Brakes: SRAM Motive, 180mm rotors front and rear. Not the biggest rotors in the sport, but plenty for a bike built to go fast on the way up as much as the way down.
  5. Wheels and tires: Roval Control World Cup wheels wrapped in Specialized Air Trak tires — a lightweight, low-rolling-resistance pairing built for exactly the mixed fire-road-and-singletrack profile Val di Sole throws at XCO racers.
  6. Cockpit: A separate handlebar and stem, not Specialized’s own integrated Roval Control one-piece cockpit that ships stock on the Epic 9. That’s a deliberate fit choice — a two-piece setup trades a small aero and weight penalty for easier bar-angle and reach adjustments, which matters more to a racer dialing in position than it costs her in a wind tunnel.
  7. Finishing kit: A RockShox Reverb dropper post and a Specialized Power Evo saddle round out a build that reads less like a showcase and more like a bike set up by someone who’s going to actually race it.

Nothing here is exotic for the sake of being exotic. It’s the current state of the art in XC race hardware, on the bike of the rider who just won the sport’s biggest single-day race.

Rainbow Stripes, Not Just a New Number Plate

The livery is worth a beat of its own. Frei debuted this Epic 9 at Les Gets in a scheme built around Swiss and European-champion colors — white and blue dominating the frame, gold star accents on the seat tube, as documented by Brújula Bike ahead of that World Cup round. The rainbow stripes are new for Val di Sole, and they’re not cosmetic in the usual marketing sense. Cycling’s rainbow jersey and matching frame stripes are the sport’s way of marking a reigning world champion until the title changes hands — Frei gets to run this scheme on every bike she races in this discipline for the next year. It’s the visual version of the stat that matters more: she’s the one every other rider in the field is chasing now.

First Elite Title, Third World Championship Overall

Frei’s win at Val di Sole is her first Elite Women’s XCO World Championship, but it’s not her first rainbow jersey. She won the Women Under-23 world title in both 2017 and 2019, which means Val di Sole is her third UCI world championship in the discipline and her first at the sport’s top level. That gap between a strong U23 career and a first Elite title is a real one — plenty of riders who dominate U23 fields never convert it into an Elite championship, because the depth and tactical sophistication of the senior field is a different problem entirely. Frei just spent several seasons closing that gap, and Val di Sole is where it closed all the way.

Who Should Care About This

Anyone who wanted the full story on Worlds week’s most dominant single ride. A 67-second solo margin at the Elite level, over a field that included Puck Pieterse, is a bigger gap than anything else this site covered from Val di Sole. We should have led with it days ago.

XC racers curious about a Flight Attendant fork-and-shock combo actually racing at the top level. We’ve tested Flight Attendant against Fox Live Valve on trail bikes over a full season. Seeing the same auto-adjusting logic on a World Championship-winning XC race bike is a useful data point for anyone deciding whether the technology is proven enough to trust.

Anyone comparing cockpit setups on the Epic 9 platform. Frei running a separate bar and stem instead of the stock integrated Roval Control cockpit is a real signal that even a factory-sponsored racer will trade a small aero number for fit precision when it matters.

Who Should Skip This

Anyone shopping for a frame based purely on this result. The Epic 9 platform Frei’s riding is the same one Specialized has been racing all season — the story here is the livery and the result, not a mid-season frame change nobody’s seen before.

Anyone wanting full suspension pressures or a complete geometry breakdown. Pinkbike and Brújula Bike’s reporting covers the build kit in detail, but neither outlet published tune-specific numbers like air pressure or damper settings. What’s confirmed is confirmed. We didn’t guess at the rest.

The Bottom Line

Sina Frei won her first Elite Women’s XCO World Championship at Val di Sole by riding away from the field on lap three and never being seen again, crossing the line 67 seconds clear on a Specialized S-Works Epic 9 built around a full SRAM wireless groupset, dual RockShox Flight Attendant suspension, and a 1,589g frame now dressed in rainbow stripes. We spent this Worlds week writing about a stock V10, a title-tying Commencal, and a comeback from 35th on the grid — all worthy stories, and all of them arguably less dominant than the win we mentioned in passing. Consider the gap closed.


Reporting sourced from the UCI, Pinkbike’s bike check, and Brújula Bike. No test bike has been ridden by our team at time of publication.