My Winspace G5 gravel bike review, starts with an hones confession 🙂 I’ll be honest with you: for years, my identity as a cyclist was almost entirely defined by asphalt. Ultra-distance road events; 630 kilometres in under 24 hours, Sleep Monsters, gravel-free routes through the Belgian Ardennes and beyond. Road was everything. Gravel was something other people did.
That’s changed. Over the past year my gravel bike has quietly become the machine I reach for more and more often. Whether I’m exploring local farm tracks east of Ghent or scouting terrain for the ultra-distance gravel events I’m planning to enter from next year onwards. And once you start looking at the gravel world through that lens, through the eyes of someone who needs a bike that can genuinely handle 400+ kilometres in a single push, you evaluate bikes very differently. You stop caring about brand heritage and start caring about engineering, weight, and value per euro spent.
That’s exactly where the Winspace G5 enters the picture. I’ve been following Winspace’s gravel programme since they first showed a prototype at Eurobike. The G5, launched at Eurobike 2026, is the machine that made me sit up and pay close attention. This is a Winspace G gravel bike deep-dive review. Expect detail, expect honest comparisons with Canyon, Ridley, Orbea and Scott, and expect a personal perspective from someone who will be riding this kind of terrain at the sharp end of the distance envelope.
From Road Ultra-Distance to Gravel: Why This Transition Matters
Ultra-distance cycling teaches you to be brutally honest about equipment. When you’re hours into a 24-hour effort, your body finds every weakness in a bike. A saddle a millimetre wrong, a handlebar width that fatigue amplifies, a drivetrain that doesn’t shift cleanly under the kind of load you’re putting through it at 3am. I approach every bike purchase through that filter.
Gravel adds a dimension road cycling doesn’t: surface variation. Belgian gravel roads, particularly the farm tracks through West and East Flanders, range from well-maintained compressed limestone to surfaces that would embarrass a mountain goat. A gravel bike for ultra-distance use needs to be equally competent on tarmac, because you’ll spend hours on it between sections of dirt, and on loose gravel, packed earth, and whatever the Belgian winter has left behind. It needs compliance without being slow. It needs aerodynamic efficiency without sacrificing handling on tricky descents. And it needs to do all of this at a price that doesn’t make you question your financial judgement every time you look at it.
The Western gravel market has responded to this demand with increasingly expensive machines that increasingly prioritise marketing budgets over engineering substance. I’ve watched the price of flagship gravel bikes from Trek, Specialized, and Cannondale march steadily towards €7,000 and beyond. And I’ve watched what you actually get for that money stay essentially the same: a carbon frame, electronic shifting, and a badge. Winspace has taken a different approach entirely. Their new Winspace G5 gravel bike is the clearest expression of that philosophy to date.
What Is the Winspace G5 gravel bike? The Headline Specifications
The Winspace G5 gravel bike is the brand’s race-focused gravel flagship, launched at Eurobike 2026 and positioned firmly above the established G3 all-rounder. Where the G3 is built for versatility and endurance across all terrain types, the G5 targets a specific rider: someone who wants to race gravel, who wants every watt to count, and who refuses to accept that aerodynamic performance and gravel capability are mutually exclusive.
The frameset alone tells the story. The G5 uses an aerodynamically profiled carbon frame with D-shaped seatstays borrowed directly from Winspace’s acclaimed T1600 road race platform. It is a detail I’ll come back to, because it matters enormously. The frameset is available for $2,200, making it one of the most technically ambitious gravel frames at this price point anywhere in the world.
Complete bike options run to two builds: the G5 Pro Di2 at $4,799, and the G5 Ultra Di2 at $5,199. The Ultra is the machine that has captured the most attention. It arrives with a SRAM RIVAL AXS XPLR groupset, Lún GRAPID2 D45 carbon wheels with steel spokes, Michelin Power Gravel 700x40C tyres, an Adventure Integrated Handlebar, and an aero carbon seatpost. In size M, the complete bike weighs approximately 8.4 kilograms. That is a remarkable number for a complete carbon gravel race machine.
The G5 accepts 700c tyres up to 50mm wide. This is considerably more than many dedicated race machines. And it comes in four colourways: Nautical Blue, Dune Fade, Alpine White, and Carbon Black. Lead time for the frameset is 15–20 business days due to high demand. You can see the full G5 specification on Winspace’s official gravel bikes page.
Winspace G3 vs G5 gravel bike: What Actually Changed and Why It Matters
If you want the detailed head-to-head between the G3 and G5, I’ve already written the definitive breakdown. You can read my full Winspace G3 vs G5 comparison article for the complete picture. But for context in this deep-dive, here’s what the upgrade actually represents.
The G3 uses T700, T800, and M40 carbon fibre in a frame optimised for all-terrain versatility. It’s a brilliant bike. 950g frame, 450g fork, T47 bottom bracket, 700c x 50mm tyre clearance, available from $3,799 in complete Di2 form. It is one of the best-value carbon gravel bikes on the planet. I mean that sincerely.
But the G5 is something different. The frame geometry shifts toward a more aggressive, race-oriented position. This means a shorter stack, longer reach, and snappier handling. The aerodynamic tube profiles are meaningfully more advanced, with truncated aerofoil shaping across the main triangle that reduces drag at road speeds where you spend most of your time on tarmac-gravel mixed routes. And then there are those seatstays.
The D-shaped seatstay architecture comes directly from the T1600. This is Winspace’s flagship road race frame. These seatstays do two things simultaneously: they reduce aerodynamic drag significantly (a round tube creates far more drag than a D-shaped equivalent at equivalent wall thickness), and they provide carefully engineered vertical compliance that smooths road vibration without introducing lateral flex. This is exactly the kind of compliance you want for ultra-distance gravel. Your hands, wrists, and lower back will thank you at hour ten. The geometry moves, the carbon grade stays at the highest level, and the frameset price increases from $1,550 to $2,200. For what you’re getting, that $650 is one of the better value propositions in cycling.
Engineering Deep Dive: What Makes the Winspave G5 Gravel Bike Frame Special
Most gravel bike reviews stop at “carbon frame, aero tubes, tyre clearance.” I want to go deeper, because for ultra-distance riders the details matter enormously.
Internal cable routing
The G5’s internal cable routing is fully integrated. The cables enter through the headtube and are completely hidden through the frame. This isn’t just cosmetic: fully internal routing eliminates wind noise on long descents (more relevant than you’d think after 12 hours in the saddle) and reduces cable contamination in wet or muddy conditions. In a Belgian February, that difference is measurable in shifting reliability over a long event.
The Adventure Integrated Handlebar
The Adventure Integrated Handlebar included with the Ultra build deserves specific mention. This is not an afterthought component. It’s a purpose-designed cockpit that integrates bar and stem into a single aero unit while maintaining a natural hand position suitable for long hours. The ergonomics have been considered carefully, and the integration eliminates the gap between stem and bar where water, mud, and debris can accumulate during a gravel race.
T47 bottom bracket
The bottom bracket specification is T47. This is the same as the G3. It’s the correct choice for a gravel bike. T47 threaded shells are far more serviceable in the field than press-fit standards, resist contamination better, and accept the full range of road and gravel-specific cranksets. Any mechanic in any country can service a T47 shell. After a 400km gravel event, that serviceability matters.
50 mm Tyre clearance
Tyre clearance of 700c x 50mm is wider than many dedicated race bikes. The G5 Pro Di2 ships with 700x40C rubber, enough for most race-format gravel, but knowing you can fit a 50mm tyre opens the door for bikepacking configurations where you want maximum volume and comfort. That versatility is a genuine engineering achievement in a frame profile this aerodynamically refined.
G5 Complete Bike Builds: What You Actually Get
Winspace offers two complete G5 gravel bike builds, and both represent genuinely compelling value propositions.
The G5 Pro Di2 at $4,799 pairs the G5 frame with Shimano’s Di2 electronic shifting. The same class of electronic groupset that costs eye-watering sums when purchased separately or included on Western-brand bikes at this price. The Lún wheelset is included, and the complete build arrives ready for serious gravel racing. For riders who prefer Shimano’s shift logic and the deep integration of its Di2 system, this is the natural choice.
The G5 Ultra Di2 at $5,199 is where the specification becomes genuinely impressive. SRAM RIVAL AXS XPLR is an outstanding electronic wireless groupset. 13-speed, purpose-built for gravel with a wide-range cassette and reliable wireless shifting that eliminates the mechanical failure modes of cable systems. Pair that with the Lún GRAPID2 D45 carbon wheelset (45mm deep carbon rims with steel spokes (an unusually durable construction for a carbon race wheel) and Michelin Power Gravel tyres, and you have a bike that arrives as a complete, race-ready system. Michelin’s Power Gravel compound is one of the fastest gravel tyres available. I’ve seen it used at the front end of professional gravel races. This is not a budget tyre included to hit a price point; it’s a genuinely excellent choice.
The Ultra arrives 90% pre-assembled. Handlebar, seatpost, saddle, and front wheel are the user’s only tasks. A 30-minute job that results in a machine you can genuinely race the same day. At 8.4kg in size M, the complete Winspace G5 gravel bike weight is competitive with anything in this price category and lighter than several bikes costing significantly more.
The Winspace G5 gravel bike vs Canyon Grail CF SLX 8 AXS
This is the most revealing comparison on this list, because for once we’re matching flagship against flagship at a similar price level. Canyon’s Grail CF SLX 8 AXS currently retails at $5,599, reduced from $6,099, and is a genuinely serious machine. The CF SLX designation means Canyon’s highest-grade carbon, and the component package backs that up: SRAM Force AXS electronic wireless groupset, DT Swiss GRC 1400 Spline carbon wheels (45mm front, 50mm rear), and integrated down-tube storage. The complete weight is approximately 8.2kg in size M. This is not a budget bike with marketing gloss. It is a proper race-focused gravel machine from one of the most experienced direct-sales brands in the world.
So why does the Winspace G5 Ultra Di2 gravel bike still come out ahead? There are two decisive reasons. First, the price: at $5,199, the Winspace is $400 cheaper than the Canyon. That gap alone demands explanation, because the G5 Ultra runs SRAM Rival AXS XPLR while the Canyon carries SRAM Force AXS And Force sits a full tier above Rival in SRAM’s hierarchy. Force AXS is smoother, the electronics are more refined, and it includes power meter compatibility that Rival does not. If groupset tier is your absolute priority, Canyon’s $400 premium is not unreasonable. It buys you a genuinely better drivetrain.
50 vs 42 mm tyre clearance
But here is what Canyon gives up for that premium: tyre clearance. The Grail CF SLX 8 AXS maxes out at 42mm. This is meaningfully less than the G5’s 50mm maximum. For road-biased gravel racing on well-prepared courses, 42mm is sufficient. For the mixed-terrain ultra-distance events I’m targeting, where surface conditions can change dramatically over 300+ kilometres and the ability to fit wider rubber sometimes means the difference between finishing and pulling out, that extra 8mm of clearance matters in a way that no groupset upgrade can compensate for. It is a real-world advantage that reveals itself precisely when conditions become demanding.
The Canyon Grail CF SLX 8 AXS is a superb gravel bike. At $5,599, it should be. But the Winspace G5 Ultra Di2 costs $400 less, accepts significantly wider tyres, and arrives with an aero frame architecture borrowed from a dedicated road race platform. When you add the Belgian VAT reality into the equation, import duties on Winspace, dealer margin baked into the Canyon, the landed price gap in Europe narrows for the Canyon and widens in Winspace’s favour. For ultra-distance gravel, those trade-offs consistently point toward the Winspace G5 gravel bike.
The Winspace G5 vs Ridley Kanzo Fast
Ridley is a Belgian brand, so this comparison is personal for me. The Kanzo Fast is their race-oriented gravel machine, using 30T HM/HR UD carbon construction and targeting the gravel race market directly. Starting prices in the UK begin around £3,200 (roughly $4,000), making it a more direct competitor to the G5 Pro Di2 on price.
At 9.1kg, the Kanzo Fast with SRAM Rival AXS XPLR is somewhat heavier than the G5 Ultra Di2’s 8.4kg. The Kanzo Fast’s tyre clearance tops out at 42mm. This is considerably less than the G5’s 50mm maximum, which matters for ultra-distance riders who sometimes need to switch to wider rubber for rougher terrain. Belgian or not, Ridley’s direct-to-consumer model cannot match Winspace’s pricing on equivalent specifications.
The Ridley does bring local dealer support and European brand familiarity. For some riders, those things have genuine value. But if you’re evaluating purely on engineering and specification per euro, the G5 wins convincingly. It’s lighter, it accepts wider tyres, it comes with more advanced wheel technology on the Ultra build, and it costs less at equivalent spec levels.
The Winspace G5 vs Orbea Terra M20TEAM
The Orbea Terra is a genuinely interesting competitor. Orbea’s OMR carbon is a well-regarded frame material, and the Terra M20TEAM at approximately $4,094 brings Shimano GRX RX820 Di2 electronic shifting. That’s a direct match in drivetrain technology level to the G5 Pro Di2. Orbea’s MyO customisation platform is a genuine differentiator: buyers can specify frame colour, decal colour, component choices, and cockpit configuration from the factory. If personalisation matters to you, Orbea does it better than anyone.
The Terra’s tyre clearance goes to 45mm which is wide enough for most gravel applications. The LOCKR XXL integrated storage system is thoughtfully designed for longer-distance riders: 35% larger than the previous generation and integrated into the downtube, accessible from the top while riding. For bikepacking or ultra-distance use where carrying nutrition, tools, and emergency kit matters, this is a considered engineering choice. Good news though, the G5 also has an integrated storage room with magnetic cover.
At $4,094 for the M20TEAM versus $4,799 for the G5 Pro Di2, the Orbea is $700 cheaper for a Di2-equipped carbon gravel bike. Where the G5 wins: the aero frame architecture is more advanced, the Lún carbon wheelset included with the G5 represents better technology than the Oquo alloy wheels on the Terra M20TEAM, and the G5’s race-focused geometry is sharper for competitive gravel events. Where the Orbea wins: MyO customisation and arguably broader versatility for touring-oriented use. Both have an integrated storage room. It’s a closer comparison than any other brand on this list, and honest riders will need to decide which features matter most to their riding style.
The Winspace G5 vs Scott Addict Gravel 20
The Scott Addict Gravel 20 at $4,299.99 is the most complete specification package from a Western brand at this price level. It runs SRAM RIVAL XPLR AXS (wireless electronic), Syncros Capital 1.0 40 carbon wheels , legitimately good carbon hoops, and arrives at approximately 8.8kg. This is a genuinely strong build for the money, and Scott has done well to package carbon wheels and electronic shifting at sub-$4,300.
The comparison with the G5 Ultra Di2 at $5,199 is a meaningful one. For $900 more than the Scott, the Winspace delivers: 400g of weight saving in a complete bike, the Lún GRAPID2 D45 carbon wheel advantage (45mm deep versus the Syncros 40mm), Michelin Power Gravel rubber instead of generic OEM tyres, and an aerodynamic frame architecture that is measurably more advanced than the Addict Gravel’s cross-section profiles. If every watt and every gram matters, and in ultra-distance events, they do, the G5 Ultra’s advantages are real and quantifiable.
The Scott is excellent value for money at its price point, and I wouldn’t dismiss it for riders whose budget tops out at $4,500. But for the serious gravel racer who can stretch to $5,200, the G5 Ultra is the faster, lighter, more aerodynamic machine.
Side-by-Side: The Numbers That Tell the Story
Numbers cut through marketing noise faster than adjectives. Here’s the complete comparison table:
| Bike | Price (USD) | Groupset | Wheels | Weight | Max Tyre |
| Canyon Grail CF SLX 8 AXS | $5,599 | SRAM Force AXS | DT Swiss GRC 1400 carbon | ~8.2 kg | 700×42c |
| Ridley Kanzo Fast (Rival AXS) | ~$4,000 | SRAM Rival AXS XPLR | Alloy | ~9.1 kg | 700×42c |
| Orbea Terra M20TEAM | $4,094 | Shimano GRX RX820 Di2 | Alloy (Oquo) | ~9.0 kg | 700×45c |
| Scott Addict Gravel 20 | $4,299 | SRAM Rival XPLR AXS | Syncros carbon 40mm | ~8.8 kg | 700×45c |
| Winspace G5 Pro Di2 | $4,799 | Shimano Di2 | Carbon Lún wheels | ~8.6 kg | 700×50c |
| Winspace G5 Ultra Di2 | $5,199 | SRAM Rival AXS XPLR | Lún GRAPID2 D45 carbon | 8.4 kg | 700×50c |
What the table makes clear: the G5 Ultra Di2 at $5,199 costs less than the Canyon Grail CF SLX 8 AXS at $5,599, while offering the widest tyre clearance of any bike in this comparison at 700×50c. Against the Ridley, Orbea and Scott, the Winspace is heavier on specification across the board. Even against the Canyon flagship, the strongest rival here, the Winspace G5 gravel bike holds the price advantage and the tyre clearance advantage, while the Canyon counters with the superior SRAM Force AXS groupset and marginally lighter weight. Every other bike in this list costs less but delivers noticeably less. No Western brand gives you this total package for the Winspace’s price. That’s not opinion; it’s arithmetic.
Performance Scorecard — Editorial Ratings
Scores (out of 10) are editorial judgements across six dimensions: frame weight, wheel quality, drivetrain technology, aero design, value for money, and tyre clearance. The Canyon Grail CF SLX 8 AXS scores highest on drivetrain technology (SRAM Force AXS) but trails on tyre clearance (42mm max). The Winspace G5 Ultra Di2 wins overall on value for money, tyre clearance, and aero design.
Why the Winspace G5 Gravel Bike Has My Preference
I’ve put thousands of kilometres on Winspace frames. My T1550 Gen 2 road bike is the machine I raced for my 630km ultra-distance effort, and it earned my complete trust over hours and distances that reveal every weakness in a design. That experience colours how I approach the G5.
Quality
The first thing I look for in a gravel frame is consistent quality control. Chinese carbon manufacturing has an unfortunate reputation built on the worst-case examples — frames with inconsistent layup, poor paint finish, welds that disguise quality issues beneath thick clear coat. Winspace is not that. Their quality control process is transparent and rigorous, the carbon finish is exceptional, and the frame tolerances are tight. I’ve never had a quality issue on a Winspace frame, and I’ve heard the same from the growing community of European ultra-distance riders who’ve switched.
Efficiency
The second thing I look for is efficiency; watts per hour. Aero gravel matters more than some riders acknowledge. On a 300km mixed-surface event, you might spend 60% of your time on tarmac between gravel sections. Over six or seven hours at race pace, the drag difference between a round-tubed gravel frame and an aero-optimised one like the G5 is measurable in minutes. Those minutes compound with distance. I know from road ultra-distance experience that every watt saved translates directly into time at the finish, or energy available for a final push. The G5’s aero architecture is a genuine competitive tool.
Wheels
The third factor is the wheel system. The Lún GRAPID2 D45 wheelset included with the G5 Ultra is a serious piece of kit. Forty-five millimetre deep carbon rims with steel spokes. An engineering choice that provides superior durability to aluminium spokes under gravel-specific lateral loads, paired with good-quality carbon rim construction. Even as Western brands push into genuine flagship territory, Canyon now offers carbon wheels and Force AXS on the Grail CF SLX 8 AXS. They price themselves $400 above the Winspace G5 Ultra gravel bike to do so, and still cap tyre clearance at 42mm. At equivalent money, or below it, Winspace gives you more bike. The Lún GRAPID2 D45 wheelset changes the ride character of the G5 fundamentally. It is not a cost-control decision; it is what a $5,200 gravel machine should include as standard.
Value
And finally: value security. When I spend $5,000 on a bike, I want to know I’m getting $5,000 of bicycle. With Winspace, the direct-to-consumer model eliminates the dealer margin, the marketing budget, and the brand premium that adds $1,000–$2,000 to Western brand prices without adding a gram of engineering substance. The G5 Ultra costs what it does because that’s what it costs to build it. Not because of a carefully managed brand positioning strategy.
Is the Winspace G5 Right for Your Ultra-Distance Gravel Goals?
Let me be specific about who the G5 is for and who it is not for.
The G5 is the right machine if you race gravel events, plan to do so, or want a bike that will still be competitive under you as your ambitions grow. If you’re aiming at events like Traka, Silk Road Mountain Race, or any of the growing calendar of European ultra-distance gravel events, the Winspace G5 gravel bike is a weapon. Its race geometry means you’re in an efficient position for sustained speed; its aero frame architecture means you’re losing fewer watts to drag; its wide tyre clearance means you can adjust rubber for terrain without needing a second wheelset.
It’s also the right machine if you’re a transitioning road cyclist who wants gravel capability without giving up the efficiency feel of a road bike. That’s precisely where I find myself. I want to cover ground fast, I want the efficiency I’m used to from road ultra-distance, and I want the terrain flexibility that gravel opens up. The G5 delivers all three without compromise.
The G5 is possibly not the right machine if your gravel riding is relaxed, social, and more about exploration than competition. For that rider, the G3 is arguably the better choice. It is more compliance built into the frame geometry, a wider range of complete bike pricing, and a more forgiving fit. I’ve covered my full G3 vs G5 breakdown here if you want to work through that decision in detail.
Practical Buying Considerations
A few practical points worth covering before you make a decision.
Winspace ships internationally from China directly to your door. Import duties and VAT apply depending on your country. Belgian buyers will need to account for 21% VAT on import. Even accounting for these additional costs, the final landed price of a G5 Ultra in Belgium typically undercuts equivalent Western-brand specification by a meaningful margin. I’ve done this calculation personally, and it is worth doing properly before you compare sticker prices.
Lead time is currently 15–20 business days for G5 framesets due to high demand following the Eurobike launch. Complete bikes vary. Check with Winspace directly for current availability. If you have a specific event on the calendar, factor this timeline into your planning. The wait is worth it, but you don’t want to be waiting for a bike two weeks before a race you’ve trained for all year.
Assembly for the complete bike is straightforward. The 90% pre-assembled delivery means a confident home mechanic or any local bike shop can finish the build in 30–60 minutes. Winspace provides assembly documentation, and the components are all mainstream brands. SRAM and Shimano service is available from any qualified mechanic globally.
Sizing follows standard road bike conventions. If you know your road bike size, Winspace’s geometry chart will translate directly. The G5 geometry is slightly more aggressive than the G3. If you’re between sizes and typically size up for comfort on your road bike, consider your standard size on the G5 rather than going up.
You can buy the Winspace G5 here and feel free to use the promo code Velofanatics5 for a nice 5% discount.
My Final Verdict
The Winspace G5 Ultra Di2 is the best-value performance gravel bike at its price point. I don’t make that claim lightly, and I’ve arrived at it by comparing it against every serious competitor in this category. At $5,199 with carbon wheels, wireless electronic shifting, an aero-optimised frame, and a complete weight of 8.4kg, it offers a specification package that no Western brand can match for under $6,500–$7,000. That gap is too large to ignore, and too consistent across multiple competitors to explain away as a one-off coincidence.
For my own gravel ambitions, longer events, faster terrain, an eye on ultra-distance gravel races from next year, the G5 is the machine I want under me. It’s efficient enough to go fast on the tarmac sections, capable enough to handle serious mixed terrain, and light enough to not fight you on the climbs. The aero architecture borrowed from the T1600 road platform is not a marketing story. It’s a real engineering advantage that I can feel on long days. And the Lún D45 carbon wheelset transforms the ride quality in a way that alloy wheels simply cannot.
The Belgian gravel roads will tell the final story. But based on everything I know about Winspace engineering and everything I’ve analysed in the competitive landscape. I expect the G5 to earn that trust quickly and hold it for the long distances that matter most.
Have you ridden the Winspace G5, or are you considering it for a gravel event? Drop a comment below. I’d genuinely like to hear from riders who are pushing these bikes at the distances where they truly reveal themselves.
