“Spiral Summit” Route Details (Watopia)
See zwiftinsider.com/route/spiral-summit/
Back on July 29th, Shimano announced the details of their new DURA-ACE wheelsets. Keen eyes had already spotted these wheels in the WorldTour peloton, including Mathieu van der Poel riding them to multiple victories, including his epic TdF stage 21 win on Champs-Élysées!
The new wheelsets include the C99/Disc combo, the C60, the C50, and the C36. These wheels currently show as “coming soon”, with Shimano saying they’ll be available to consumers beginning in September:

The new C36, C50, and C60 are effectively replacing the wheelsets of the same name that have been in Zwift for years (but you’ll need to buy the new wheels to get the upgrade). The older C36, C50, and C60 have been removed from the Drop Shop, but will remain in your garage if you’ve already purchased them. (Currently, the older wheels include “DURA-ACE” in the name, while the new wheels do not. Zwift says this will be changed soon, as all of Shimano’s wheels in Zwift come from their DURA-ACE line.)
Here are the ratings of the new wheels, along with level unlocks and pricing:
The wheels are now available in the Drop Shop. But how do they compare with the previous versions, and how fast are they compared to other wheels on Zwift? Since Zwift’s 4-star rating system isn’t precise enough for our tastes, we ran these wheels through our standard battery of tests to determine exactly how they perform in Zwift and stack up against other wheelsets.
Let’s dive in and learn all about the in-game performance of these new Shimano DURA-ACE wheels!

Shimano’s wheels have always been rather lackluster performers in game when compared to the full Drop Shop list, but they’ve been top performers if you look at wheels available at lower levels (like 12 and below). These new wheelsets continue the trend of being available at low levels, but are sped up so much that they effectively erase the need to purchase anything else!
Here’s how much faster the new versions of these DURA-ACE wheels are on the flats, compared to the older models:
Those are huge leaps! And the new C99/Disc pictured above is basically as fast as the best discs on the flats (and slightly faster on the climbs), while being available at a lower level (28). This has led to a major shakeup in our “fastest bike setups by level” tables, as shown below:
| Level | Fastest Wheelset | Time Savings |
| 1 | Zwift Classic (Free) | 0s |
| 3 | Zwift 32mm Carbon (100,000) | 6.2s |
| 12 | Shimano C60 (325,000) | 31.6s |
| 15 | Roval Rapide CLX (500,000) | 33.4s |
| 16 | Roval CLX64 (525,000) | 40.1s |
| 25 | Zipp 808 (425,000) | 42.1s |
| 28 | Swiss Side HADRON Ultimate 650 (550,000) fastest non-disc | 53s |
| 37 | Zipp 858/Super9 (750,000) | 54.7s |
| 39 | Swiss Side HADRON Ultimate 850/Disc (900,000) fastest disc1 | 56.2s |
| Level | Fastest Wheelset | Time Savings |
| 1 | Zwift Classic (Free) | 0s |
| 3 | Zwift 32mm Carbon (100,000) | 6.2s |
| 6 | Shimano DURA-ACE C36 (600,000) | 33.4s |
| 10 | Shimano DURA-ACE C50 (650,000) | 46.1s |
| 12 | Shimano DURA-ACE C60 (650,000) | 48.6s |
| 28 | Swiss Side HADRON Ultimate 650 (550,000) fastest non-disc | 53s |
| 28 | Shimano DURA-ACE C99/Disc (900,000)1 | 58.2s |

As mentioned in the Flat Performance section above, Shimano’s wheels have been top performers among those unlocked at lower levels. These updated DURA-ACE hoops climb significantly better than their predecessors.
Here’s how much faster the new versions of these DURA-ACE wheels are on the climbs, compared to the older models:
This has led to a revision of our “Fastest Wheels by Level” list. While not as radical a revision as the aero performance list referenced above, it’s worth a mention.
| Level | Fastest Wheelset | Time Savings |
| 1 | Zwift Classic (Free) | 0 |
| 3 | Zwift 32mm Carbon (100,000) | 11.4s |
| 5 | Shimano DURA-ACE C36 (150,000) | 18.7s |
| 24 | Zipp 353 NSW (600,000) | 21.2s |
| 29 | CADEX Max 50 (680,000) | 22.5s |
| 32 | Princeton CarbonWorks Wake 6560 (685,000) | 24.1s |
| 35 | Princeton CarbonWorks Alta 3532 (685,000) | 25.9s |
| Level | Fastest Wheelset | Time Savings |
| 1 | Zwift Classic (Free) | 0 |
| 3 | Zwift 32mm Carbon (100,000) | 11.4s |
| 6 | Shimano DURA-ACE C36 (600,000) | 22.2s |
| 29 | CADEX Max 50 (680,000) | 22.5s |
| 32 | Princeton CarbonWorks Wake 6560 (685,000) | 24.1s |
| 35 | Princeton CarbonWorks Alta 3532 (685,000) | 25.9s |
Not reflected in these tables but worth mentioning, the new C50 wheels come in just behind the C36 in climbing performance, putting them 5th overall. But the C50 are much better aero performers.
The new C99/Disc wheelset, while of course not a strong climber compared to non-disc wheelsets, is actually a bit lighter than the top disc wheels, meaning it climbs better than the DT Swiss ARC 1100 DICUT 85/Disc and Swiss Side HADRON Ultimate 850/Disc. And when I say “a bit,” I mean less than 1 second faster – within our margin of error, but a measurable difference nonetheless.
Note: all test results above are from a 75kg, 183cm rider holding 300W steady using the Zwift Carbon frame.
With the release of these updated DURA-ACE wheelsets, Shimano’s wheels are finally truly strong performers. This is particularly true when you look at their very low level unlocks, but it’s even true compared to the overall landscape of wheels available to upper-level Zwifters. Our Wheel Ranking Charts show this clearly:
More experienced Zwifters may not pull the trigger to purchase the new DURA-ACE wheels (although I would bet many TT racers buy the new C99/Disc). But beginning Zwifters will surely be adding the non-disc DURA-ACE hoops to their garage early in their progression, since they’re the fastest wheels available below level 28.
These wheels have been added to the following posts:
Share below!
Important note: this post contains speed test results for Zwift frames or wheels. These results may change over time, and a bike's performance relative to others may also change. We don't always revise posts when performance rankings change, but we do keep current, master versions of our speed test results which are always available. See the frame charts, wheel charts, and Tron vs Top Performers for current performance data.
If you’re racing on Zwift, upgrading your frame and wheels can cut crucial seconds off your efforts. But figuring out where to spend your hard-earned Drops can be confusing! So we’ve put together this table which lists the best climbing frame and wheelset available at every Zwift level.
Keep in mind this list applies only to bigger climbs. If your race is flat or only has short, rolling climbs you’ll probably want to go with a more aero setup.
| Level | Fastest Frame | Time Savings |
| 1 | Zwift Steel (Free) | 0 |
| 3 | Zwift Carbon (55,000) | 31.1s |
| 8 | Liv Langma Advanced SL 2025 (1,000,000) | 72.1s |
| 10 | Canyon Aeroad 2024 (1,100,000) | 73.9s |
| 12 | Canyon Ultimate CFR (350,700) | 74.2s |
| 17 | Scott Addict RC (660,200) | 77.8s |
| 21 | Van Rysel RCR Pro (1,400,000) | 79.4s |
| 30 | Specialized Aethos S-Works (966,300)* | 85.8s |
| 40 | Specialized S-Works Tarmac SL9 (1,900,000) | 87.7s |
* The un-upgraded version of the Specialized Aethos S-Works climbs a bit slower than the un-upgraded Specialized S-Works Tarmac SL9, but if you compare the fully-upgraded versions of both bikes, the Aethos is a much stronger climber. This is due to how Zwift’s upgrade system is structured. See charts/data >
| Level | Fastest Wheelset | Time Savings |
| 1 | Zwift Classic (Free) | 0 |
| 3 | Zwift 32mm Carbon (100,000) | 11.4s |
| 6 | Shimano DURA-ACE C36 (600,000) | 22.2s |
| 29 | CADEX Max 50 (680,000) | 22.5s |
| 32 | Princeton CarbonWorks Wake 6560 (685,000) | 24.1s |
| 35 | Princeton CarbonWorks Alta 3532 (685,000) | 25.9s |
Total time savings of fastest frame and wheelset over stock Zwift setup (Zwift Steele frame and Zwift classic wheels): 87.7+25.9=113.6 seconds
Times above are based on our climbing speed tests, done with a solo 75kg, 183cm rider at 300 watts on Watopia’s Alpe du Zwift.
It may seem simplest to just purchase each frame or wheelset on the list as soon as you level up, but if you want to maximize performance you also need to take Zwift’s Bike Upgrade functionality into account, since it rewards riders who stay on the same frame long enough to fully upgrade it. Simply put: it doesn’t make sense to buy each frame/wheelset on this list, since you won’t be able to fully upgrade it before having access to buy the next fastest frame. So you’ll need to choose your purchases/upgrades wisely.
There’s another factor to consider here as well, when you’re looking strictly at climbing performance. Zwift’s upgrade system is structured so that, if a bike is classified as a climbing bike, the upgrades it receives are more climbing-focused. All-arounders and aero bikes, on the other hand, receive more “balanced” upgrades between aero and climb performance.

So while the table above shows the Specialized S-Works Tarmac SL9 outperforming the Specialized Aethos S-Works on climbs, this is only true if the frames aren’t upgraded. If you compare fully-upgraded versions of those frames (the toggle on this Tron vs Top Performers chart may help), the Aethos is actually a much better climber, putting ~21 seconds into the S-Works Tarmac SL9 over an hour on a climb.

The Trek Emonda (unlocked by completing the Climb Mt Everest Challenge) earns a mention here as well, because it is classified as a climbing bike and will outclimb all bikes except the Aethos when fully upgraded.
Don’t have enough Drops? Keep riding – you’ll get them soon enough! (Learn how to earn more Drops here.) And if you’re wanting to level up faster, check out How to Earn More XP and Level Up Faster on Zwift.
Even more so than our list of most aero frames and wheels by level, the biggest performance gains for climbing come very early in a Zwifter’s level progression. Over 83% of total gains are attainable by just level 8!
Hopefully this helps you select a bike for your next race, no matter your Zwift level. Got questions or comments? Post below!
Important note: this post contains speed test results for Zwift frames or wheels. These results may change over time, and a bike's performance relative to others may also change. We don't always revise posts when performance rankings change, but we do keep current, master versions of our speed test results which are always available. See the frame charts, wheel charts, and Tron vs Top Performers for current performance data.
As we make our way into the latter half of 2026, there is still time to chase your goals for the year. In this week’s top video, one Zwifter discusses new goals for 2026 and sets a fitness benchmark on the iconic Alpe du Zwift.
We’ve also included videos about climbing Mont Ventoux on both Zwift and in real life, details on Zwift Racing League, riding a stage from the Tour de France Femmes avec Zwift (TDFFaZ), and a look into a year’s worth of fitness gains.
Share the link below, and we may feature it in an upcoming post!
Now in its 20th round, Zwift Racing League continues to take racing to the next level on Zwift! Registration is now open for the first round of the 2026/27 season, which begins on September 22.
This page contains everything you need to know about the current ZRL round and is updated as WTRL announces new details.
Zwift Racing League (ZRL) is team-based racing for all abilities. It’s also the world’s largest virtual cycling competition, with over 30,000 riders of all abilities participating in each of the past two seasons!
Organized by WTRL, this is a team-based points competition spanning multiple weeks, with teams divided into divisions based on time zones and ability. Races take place every Tuesday, and the season is divided into distinct rounds with brief breaks in between.
ZRL is Zwift racing at its highest level. Its unique structure and varied race formats drive serious Zwift racers to show up week after week while providing a place for new racers who jump in and find their first team home.
Zwift + WTRL continuously collaborate to modify ZRL’s structure and rules with the aim of engaging as many racers as possible. Heading into this first round of season, many rule changes have been made. See below for the basics, and see WTRL’s website for details.
The 2025/26 season ended with a four-week round, but this year all four rounds are full six-week affairs.
Team sizes are being reduced from 12 riders to 10, with only 5 riders (instead of 6) racing each week.
Fastest Through Segment points were formerly given to the top 5 riders. They will now be awarded to the top 10 riders: 15 points for 1st, then 12, 10, 8, 6, 4, 3, 2, down to 1 point for 10th place. Learn all about FTS, FAL, and other points systems used in ZRL >
The first race of each round will now be a “Race of Truth”. This format is scored just like a ZRL points race, but there’s one big difference: drafting is turned off (and so are TT bikes)!
For the first time ever, steering is enabled in all races. Braking will be available for TTT events only.
Training events will be held every Tuesday until this round begins. Ride alongside other Zwifters and learn about team racing, what to expect when you race ZRL, and how to take the next step and join a team. No racing – just a group ride.
See upcoming events at zwift.com/events/tag/zrlintro.
250 XP will be rewarded for every lap completed, adding up to thousands of XP across the season.
Essentially a “classifieds” list of people looking for a team, with the ability for existing team admins to easily search the list and contact riders.
WTRL says this won’t be live until the first week of September, so if you’re looking for a team before then, visit wtrl.racing/zrl/teamhunt.
Teams must wear their chosen ZRL kit in every race. There are no exceptions, and penalties (currently not yet specified) will apply.
These upgrades are not yet fully in place, but the plan is to reduce the need for riders to click a RacePass each week. Instead, team admins can optionally select and sign up their 5 riders each week.
Here’s an interesting new rule:
I predict this rule will cause a lot of strife and confusion, because most of the popular smart trainers (including the Wahoo KICKR and KICKR CORE) “generate cadence values algorithmically”, meaning many riders will need to purchase actual cadence sensors to comply with this rule.
Note: the above rule was changed in the rulebook on 8/18/2026, so it no longer applies. As always, see the current rulebook (available on this page) for current rules.
WTRL is updating their rules to clearly state pairing and accuracy standards. Here are some excerpts from the rules:
For details on ZRL rules, including the full “Technical Guide & Rules” PDF, see the ZRL Rules page >
Each ZRL round comprises weekly races which are either scratch races, points races (including Race of Truth), or team time trials (TTT). Scratch Races and Points Races are both actually points-based in terms of final results, but Points races include intermediate segments while Scratch Race points are all earned at the finish line. TTT winners are the teams who complete the race course fastest, with team time taken from the fourth rider across the line.
The round begins with the new “Race of Truth” format on one of the new Paris routes! In this format, we’re all on road bikes (no TT bikes allowed), but drafting is disabled. So basically, a Merckx-Style TT… with FAL+FTS segment points… on Zwift! Back-to-back Montmartre climbs are going to hurt, particularly in this format.

We head to Innsbruck for the first scratch race of the season, held on the popular Innsbruckring circuit. The elastic will stretch and break every time up the Leg Snapper… but who will stay away for that long final sprint?

Our first true points races of the season are in Makuri Islands, with A/B riders on a different route from C/D. Both routes feature flat sprint segments hidden behind short climbs.
Read our Race 3 Guide (A/B) >
Read our Race 3 Guide (C/D) >

The only TTT of this round is on Watopia’s classic Figure 8 Reverse, a route popular in the early days of Zwift racing. Teams will take on the tricky Hilly KOM in both directions, as well as the rollers of The Esses and other pacing challenges.

The second scratch race of round 1 finds us in the Big Apple, taking on the Green to Screen route for the first time in ZRL history. Get ready for big attacks on the Brooklyn Bridge KOM near the finish!

The final race of the round is on a brand-new route with a red-hot finish! You begin with a lovely downhill section, but then the legs will be softened on the Jarvis KOM, and fully hammered to bits by the finish up the Volcano KOM.

Some divisions and start times are adjusted between rounds. Use the table below to find a time slot that works for your team. Please note that time slots may shift a bit – what you see below are provisional times. We will update this table once WTRL finalizes it.
Team registration is already open (go to wtrl.racing/zrl/myteams/ and click “Register a Team”). Registration for round 1 closes on September 18, 2026.
ZRL is a team-based competition – you cannot sign up as an individual rider. Teams can roster up to 10 racers, but only 5 can race in each event. Teams must have at least 4 riders on their roster, and a rider can join as many teams as they’d like, but only a maximum of two teams per league category.
Want to race, but don’t have a team? Here are seven ways to find a team:

If this is your first time racing on Zwift, here are a few tips to get you started fast:
We recommend checking out WTRL’s Zwift Racing League page for rules, team registration, results, and more. They also have a Help Center with lots of useful info, and their Facebook page is the place to go for discussion of all things ZRL.
You may also share questions or comments below!
Zwift version 1.120 begins its phased rollout today. This update includes new Shimano DURA-ACE wheels, more route badges for runners, and some minor tweaks and fixes. Read on for details!
The following new wheels are now available in the Drop Shop:
These are the in-game versions of Shimano’s latest DURA-ACE wheelsets, which are labeled as “coming soon” on their website. Watch for speed test results here on Zwift Insider this week, and news coming soon of upcoming Zwift races featuring these wheels!




The older versions of the C36, C50, and C60 have been removed from the Drop Shop, so they are no longer available for purchase, although they will remain in your garage if you’ve already purchased them.
Here’s a nice little update we didn’t see coming. Zwift’s release notes say, “Equipping a wheel set in the garage will save it to the equipped bike. Each owned bike in the garage can have a unique wheel set saved.”
Now you can easily set up, say, a climbing bike (Specialized Aethos with Princeton Alta wheels), a TT rig (Canyon Speedmax CFR with DT Swiss disc), a gravel bike (Cannondale SuperX LAB71 with Roval Terra Aero CLX wheels) and an all-around racer (Tarmac SL9 with Princeton Wake 6560 wheels). To swap from one bike to the other, just choose the new bike in your garage. Voilà! It already has the right wheels attached.
We’ve got two more garage requests for Zwift – an easy one, and a tougher one:
Zwift has added four new route badges for runners, continuing the trend they started in the v1.119 release. Once you’ve installed version 1.120, the following routes will have achievement badges and XP available for runners:
Not mentioned in the release notes, but worth putting here just for the record:
Zwift supplied these additional release notes:
Discuss this update in Zwift’s forum >
If you spotted any other changes or bugs in the update, please comment below!
Today, Zwift unveiled a simple new challenge, fittingly titled “Zwift Shorts”. The goal? Complete eight very short event-only routes that are typically unavailable for free riding:
These routes are easily accessible during the challenge (which ends September 27, 2026 at 23:59 PDT), making them ideal for quick sessions and easy progression.
Here are the routes included in this challenge:
Note: Route lengths on the in-game challenge screen shown above include event lead-ins, but when you free-ride most of these routes the game puts you at the end of the lead-in, so the actual route length is shorter than shown. Our lengths listed above are accurate, meaning this challenge requires ~31km of riding. Most riders could knock out this challenge in one solid session! Are you up for it?
You’ll get a green completion banner popup when you finish each route. Make sure you keep riding until you see the popup, to ensure you’ve completed the route!
You will get credit for completing a route whether you do it in an actual Zwift event (like a race or a group ride), or just click the “Zwift Shorts” card on the home screen and free-ride it.
Up to 1000 bonus XP is rewarded as you progress through the challenge:
Share below!
Recently the HISP Club announced the 5th edition of their popular “Tour de Hisp” – a 13-stage daily tour running August 24-September 6. Here are all the details!
Sign up for Tour de Hisp events like you would any other Zwift event – online or via the Companion app.
See upcoming Tour de Hisp events at zwift.com/events/tag/hisp
Learn more at the Tour de HISP 2026 homepage. You may also post questions and comments below!
This weekend wraps up a few different event series: Tour Fever, Tour de 4, and Tugaz Tour 2026. We feature all three below, plus a couple more! Scroll down for our picks…

✅ Good Cause ✅ Popular ✅ Kit/Cap Unlock
With more signups than any other event this weekend, the Tour de 4 ride with Sir Chris Hoy is as popular as ever! This is the last Tour de 4 events of 2026, so don’t miss it.
Join Sir Chris and special guests for an open-paced 45-minute ride on the Makuri Islands Island Hopper route. Finish the ride to unlock the in-game Chris Hoy Tour de 4 kit and the new 2026 Tour de 4 cycling cap.
Saturday, August 15 starting @ 9am UTC/5am ET/2am PT
Sign up at zwift.com/events/tag/tourde4

✅ Prize Giveaway
Here’s a one-off ride from Zwift Insider friend and longtime ride organizer Tim Perkin. This ride, led by Tim at C pace on Watopia’s Sand and Sequoias (22.4km, 181m) includes a prize giveaway for one finisher: a pair of Shokz OpenRun Pro 2 headphones!
Saturday, August 15 starting @12pm UTC/11am ET/8am PT
Sign up at zwift.com/events/view/5672242

✅ Popular ✅ No Powerups
The popular Tugaz Tour 2026 consists of 15 standalone races, and this is the last one! And it’s a big one, on Watopia’s The Pretzel (72.9km, 1362m). This is a mass start event using W/kg-based categories. There are no powerups, no steering, and no braking.
Sunday, August 16 @ 9:05am UTC/5:05am ET/2:05am PT
Sign up at zwift.com/events/view/5370628

✅ Ventoux ✅ Popular ✅ Unlocks
This weekend is our last chance to knock out stages in Zwift’s Tour Fever series! Make-up events are scheduled all weekend… see upcoming events at zwift.com/events/tag/tourfever2026.
The events I want to highlight, though, are on stage 4’s long route. These are special L’Etape Femmes events on the challenging Ven-Top route (21.1km, 1534m ). Finishers receive an exclusive L’Etape Femmes kit unlock, along with any applicable Tour Fever unlocks.
Multiple time slots this weekend
Sign up at zwift.com/events/tag/tourfever2026stage4

✅ Banded Ride ✅ Beginner-Friendly ✅ Route Badge ✅ New Route
The friendly Bikealicious crew is leading a banded group ride on New York’s Stay Puft Pursuit route (32km, 416m). Grab this route badge if you haven’t done so yet, which comes with a 625XP bonus.
Saturday, August 15 @ 9pm UTC/5pm ET/2pm PT
Sign up at zwift.com/events/view/5670213
We choose each weekend’s Notable Events based on a variety of factors including:
In the end, we want to call attention to events that are extra-special and therefore extra-appealing to Zwifters. If you think your event qualifies, comment below with a link/details and we may just include it in an upcoming post!
See zwiftinsider.com/tiny for current Tiny Race details.