The MotoGP Engine So Dominant It Got Banned

Do not click away, because in the next 30 seconds I'm going to show you the most successful engine layout in the history of MotoGP, and the reason you have never seen one race in your lifetime, and never will. 5 cylinders, 48 wins from 82 starts, 58.5% of every race it ever entered, 3 riders world championships in 5 years, and it has not turned a wheel in anger since 2006. Not because somebody built a faster one. Nobody ever did. Because the rulebook reached back and made it illegal to ever build another. Here's exactly how they did it. And the part almost every version of this story gets wrong. Here's the thing nobody could tell you at the time. Nobody knew what the right engine for this era actually looked like. Not Honda, not Yamaha, not Ducati. For one season, the sport handed every factory on earth the same blank sheet of paper, and every single one of them answered the question differently. Yamaha built an inline 4. Kawasaki did the same. Suzuki bet on a V4. Aprilia, stubborn as ever, showed up with a raucous inline 3. 5 factories, 5 philosophies, all racing each other into a future none of them had actually seen. But then there was Honda, staring at the exact same blank page, about to do something no manufacturer had ever done in the history of Grand Prix racing. They built a 5. Not because 5 cylinders were obviously better. Because buried in the fine print of the new rulebook was a detail almost the entire paddock walked straight past. And Honda were about to turn it into the most dominant race engine of the decade. And if that sounds like a wild gamble for a company to take on a hunch, hold that thought. Because the way this idea was actually born is even stranger than the engine itself. I'll get to that. But first you need to understand the loophole, because without it, none of this happens. Act 1. The shape. Nobody had tried. To understand why Honda gambled on 5 cylinders, you have to read the 2002 technical regulations the way their engineers did, like a puzzle with a prize hidden inside it. The new rules didn't just cap engine size at 990 cubic centimeters, they tied a bike's minimum weight to how many cylinders it had. In the old 500 cubic centimeters days, 4 cylinders was the ceiling. Now the ceiling was gone. You could run as many cylinders as you wanted, but each one you added carried a weight tax. So on paper, choosing 5 over 4 should have cost Honda dearly. It didn't. And this is the whole ballgame. Because of exactly where the rulebook drew its lines, a 4-cylinder engine and a 5-cylinder engine were dropped into the very same weight bracket, 145 kilograms minimum, for either one. Read that again, because MotoGP's own historian Matt Oxley confirmed it decades later. In 2002, the maximum cylinder count went from 4 to, in his words, however many you wanted, and the minimum weight for 4 and 5-cylinder 4-strokes was identical. 145 kilograms. Which means Honda could take everything an extra cylinder gives you. A smoother spread of power, higher achievable revs, more peak horsepower, for a cost in kilograms of exactly nothing. A free cylinder. Sitting in plain sight in a document every rival had a copy of. Nobody else touched it. Now, the origin story I promised you, and this is real. According to Honda's own official account, the V5 didn't come from a lab, or a wind tunnel, or a directive from the top. It came from a throwaway line. The head of Honda's motorcycle product planning department wandered past the engine team and said, more or less, wouldn't it be interesting, and just like Honda, to build a V5? The engineers, in Honda's own words, could not be bothered responding seriously. A V. Odd number of cylinders, a balance nightmare, no precedent anywhere in Grand Prix history. But they sketched a rough layout anyway, almost to prove it was a bad idea. But then they looked closer, and what they found stopped them cold. The vibrations that should have torn a V apart could be cancelled out, without a balancer at all. The dumb idea wasn't dumb. The dumb idea was the answer. And if you're wondering whether Honda had form for this kind of thing, reading the rulebook sideways and building something the referees never saw coming, they did. Twenty years earlier, when Grand Prix racing capped the top class at four cylinders, Honda's engineers built a four-stroke V4 with oval-shaped pistons. Each cylinder ran two connecting rods and eight valves, effectively two cylinders fused into one. On paper, a four. In practice, it breathed like an eight. That machine was the NR500. And here's the honest part. The NR500 never won a Grand Prix. The idea outran what 1970s metallurgy could survive at racing revs, and Honda quietly moved on to a two-stroke. But the instinct never left the building. Find the exact edge of what the rules actually say. But then build something nobody writing those rules ever imagined. So now Honda had their loophole, and they had their strange, brilliant engine idea. All they needed was for the greatest rider on the planet to believe in it. He didn't. Valentino Rossi had just won the very last 500cc two-stroke world title in 2001 on Honda's NSR500. He climbed onto the new four-stroke for the first time straight after winning the Suzuka 8 Hours that year. And he came away underwhelmed. In his own words, years later, to Sky Sport Italia, at the beginning it was not so strong. I was quite worried because I thought the 500s would be stronger. I was wrong. Valentino Rossi, on his first ride of the RC211V, sit with that. The reigning world champion, the man the entire project was built around, rides Honda's brand new flagship. And his honest first reaction is that the old two-stroke it was designed to replace might still be the better motorcycle. He was worried. He said so. So picture where Honda actually stood heading into the single most important season in the sport's modern history. A cylinder layout with no precedent anywhere. A balance problem everyone said couldn't be solved. And the best rider alive, quietly unconvinced the thing was even an upgrade. But then, 2002 happened. And the doubt didn't last long. Act II. The loophole becomes a dynasty. The bike that reached the grid was the RC211V. The letters mean something. RC, Honda's racing prefix. 211, their first works Grand Prix bike of the 21st century. And V, for the V configuration of that five-cylinder engine. Water-cooled, double overhead cam, 20 valves across five cylinders, three in the front bank, two in the rear, set in a V at 75.5 degrees. And that angle is not a round number by accident. It is the answer to the balance problem, machined into metal. Here's the piece most channels skip, and it's the actual engineering heart of this whole story, so let me slow down. An odd number of cylinders has a problem, and even number doesn't. The forces inside the engine don't naturally cancel. Left alone, a five shakes itself to pieces at high revs. Honda's fix lived in that 75.5 degree angle. Positioned exactly there, the combined forces of four of the five cylinders could be cancelled almost entirely by the fifth, middle cylinder, working alone. A five that behaved on the crank, like something far smoother, and needed no mechanical balancer to do it. Why does one missing balancer matter so much? Because every gram a balancer weighs, and every scrap of friction it adds, is weight and power your rivals are carrying that you are not. Stack that on top of the free extra cylinder from the weight bracket loophole, and the picture snaps into focus. An engine that revved harder, made more peak power, and still hit the same minimum weight as a conventional four. Advantage on top of advantage, all of it legal. And it borrowed brilliance from Honda's own history. The cylinder design leaned heavily on the V4 from the RC45 Superbike, the machine that won the 1997 World Superbike title. And the firing order came from the mighty NSR500, a Big Bang configuration, where the cylinders fire in a quick cluster rather than evenly spaced. That trick, which Honda pioneered on the two-stroke back in 1992, hooks the rear tire up and feeds grip to the rider in a way an evenly firing engine simply can't. So what did it actually feel like? One of the men who'd know is Shinichi Ito, a Honda development rider who'd raced the old 500s, but then helped build the new one. His verdict on the 2002 machine, on Honda's own record, the power of the V5 990 cubic centimeters engine was tremendous. Acceleration remained strong even after entering sixth gear, and in fact just kept on. Shinichi Ito, Honda development rider. That's the part the riders fell in love with. Not just brute power, usable power. The Big Bang grip made it controllable at low revs, which meant less tire spin, less premature wear, and a bike you could lean on lap after lap. Combine that with a compact, confidence-inspiring frame, and you had a motorcycle that flattered the rider instead of fighting him. And that word, flattered, is the quiet reason the V5 dominated the way it did. It didn't just win in the hands of the greatest rider alive. It won in the hands of very good riders on customer bikes, too. That first season, a satellite Honda rider, Alex Barros, won races on it. Rainmaster Sete Gibbernau would win eight over the coming years. The engine was so rideable, so forgiving with its power, that Honda's second and third teams could beat rival factories' number one bikes. That is a rare and dangerous thing in racing. An advantage so broad, it doesn't depend on a superstar to unlock it. Hold onto that, because it's exactly the quality the sport would eventually decide it could no longer live with. Nor was the thing slow in a straight line, whatever rideable might make you assume. Toru Okawa's RC211V was clocked at 324.5 kilometers an hour at Mugello in June of 2002, the fastest bike of the entire field that season. Usable and brutal. That combination is what every engineer chases and almost nobody catches. And here's the detail lifelong fans still bring up first. The one thing that never made it onto a single spec sheet. The RC211V did not sound like anything else on the grid. A five-cylinder whale sitting somewhere between the bark of a four and the howl of a V8. A noise no factory racing engine had made before it, or has made since. Roll it back a second and just listen. Now. One myth to kill before it spreads, because you'll hear people say this engine sprang out perfect and never changed. Wrong. Across five seasons the V5 was reworked constantly. Honda even gave the generations internal names from the NV5A of 2002 through to the heavily redesigned NV5HG of 2006. Between them the bore and stroke were revised from around 73 millimeters by 47.3 to 75 by 44.8, chasing a better trade between revs and torque. Compression crept up year over year. Traction control arrived in 2003. A new rear suspension linkage and exhaust came in 2004. Peak power climbed from a fairly modest 220-odd brake horsepower to a reported 260 by the end. With paddock rumors it could touch 300. The V5 wasn't a single stroke of genius frozen in glass. It was five straight years of the same engineers refusing to leave it alone. So how did all that theory translate on Sunday? Immediately. Devastatingly. Visual race win montage 2002. Scoreboard graphics climbing. Rossi, the same rider who'd been quite worried the thing wouldn't beat a two-stroke, won 11 of the 16 races in 2002 and walked to the very first MotoGP title by 140 points. And the bike itself did even more. Across those 16 rounds the RC211V won 14 of them. The only races it didn't win went to Max Biaggi's Yamaha. Twice. In its debut season. On a cylinder layout nobody outside Honda had ever seen. But 2003 is where it stopped looking like one brilliant rider and started looking like an engine advantage nobody else on the grid could answer. When the final standings were counted, the top three riders in the entire world championship, Rossi, Sete Gibernau and Max Biaggi, were all on Honda machinery. Different teams. Different sponsors. Different colors. The same five-cylinder engine underneath every one of them. As Matt Oxley put it, across 2002 and 2003 combined the RC211V won all but three of 32 races. Let that number land. But then, that same season delivered the darkest day this story has and it would be dishonest to skip it. At the opening round at Suzuka on the 6th of April 2003, a 26-year-old Japanese rider named Daijiro Kato, a former 250 world champion, one of Rossi's genuine rivals and one of the brightest talents his country ever produced, crashed his Grissini RC211V at high speed into the barriers before the final chicane. Two weeks later he died of his injuries. His number, 74, was retired from the sport. Suzuka was taken off the MotoGP calendar and has never hosted the class again. His was the last death in Grand Prix racing for seven years. I'm not going to dress that up as drama. It's just the truth of what this era cost and it matters for where the rules go next. Because in the background, a very different kind of pressure was building. The bikes were getting frighteningly fast. On track though, the Honda machine kept marching and now it finally had a proper enemy. 2003 was the year Ducati arrived in MotoGP. All Italian noise and desmodromic V4 fury and their rider Loris Capirossi stunned the paddock by winning at Barcelona. For a moment it looked like a real fight. It wasn't, not yet. Sete Gibbernau pushed Rossi hardest of anyone that season, but every one of the top three riders was still on a Honda V5. Rossi's title defense started slowly, then he simply detonated, winning six of the last seven races to close it out. His second title on the V5. But then he did something that should have ended the dynasty on the spot. At the end of 2003, unhappy with the atmosphere inside the team, he walked. He took his crew chief and half his crew and defected to Yamaha, a factory that hadn't won the title in years, specifically to prove a point. That it was him, not the Honda, that had been winning. It's the single most important argument in this whole story and we'll never fully settle it. Was the V5 that good or was Rossi that good? He'd spend the next years trying to answer it in Yamaha's favor. And here's what tells you the engine was, at the very least, half the story. The V5 kept winning without him. Honda took the constructor's championship in 2002, 2003, and again in 2004, even as Rossi took the rider's crown to Yamaha. The engine didn't need the superstar to keep being the best engineered bike on the grid. But then came the ending nobody in Yamaha's garage saw coming. 2006, the V5's final season. Rossi looked set to win it, but a season pockmarked with crashes and a broken wrist let a tough, unglamorous, gloriously fast American reel him in. Nicky Hayden, the Kentucky kid, took the fight to the very last race of the year at Valencia. Rossi crashed, Hayden held his nerve, and the RC211V won its third and final rider's world championship by five points, snatched from the greatest rider of his generation on the bike he'd walked away from three years earlier. If you wanted a send-off scripted for maximum poetry, you could not do better than that. Add it all up across five seasons and the number is almost absurd for one engine configuration. 48 wins from 82 starts. 58.5 percent. 10 different riders won on it. Rossi, Ukawa, Barros, Biaggi, Gibbernau, Tamada, Malandri, Elias, Pedrosa, Hayden, three riders' titles, four constructors' crowns. No cylinder layout in the four-stroke era of MotoGP has matched that win rate before or since. Stay with me because everything up to here is the easy part of the story. A company finds an edge, builds around it, wins. If that were the whole tale, it'd be a highlight reel. The reason we're still talking about this engine 20 years later is what happens next, and it has almost nothing to do with anything Honda did wrong. But then, while the V5 was rewriting what a MotoGP engine could do, a much quieter conversation was happening in rooms nowhere near a racetrack, and that conversation was about to end this one. Act 3. The Room Where It Ended. By 2005, MotoGP had a problem, and it had nothing to do with which engine was winning. It had to do with how fast all of them had gotten. At that year's Italian Grand Prix at Mugello, all but four of the 21 bikes on the grid broke 200 miles an hour down the front straight. Carlos Cecca's Ducati was clocked at almost 210. Set that against the danger this sport had already proven it carried, remember Kato, and you understand why the people in charge stopped seeing top speed as a spectacle and started seeing it as a countdown. To feel how fast that was, win back a few years. In 1999, the fastest a two-stroke 500 ever went through the Mugello trap was Max Biaggi at 318.6 kilometers an hour. And that was considered outrageous. Inside six seasons of four strokes, the bikes had blown clean past 330. The tracks weren't getting any longer, the runoff wasn't getting any bigger, but the machines were rewriting the ceiling every single year, and everyone in the sport could do the arithmetic. There was a second worry underneath the first one, and it's the uncomfortable flip side of everything that made the V5 great. Prototype engines had become monstrously, unsustainably expensive, a single factory motor could cost the price of a house, and the racing itself was starting to bother people. When the fast bike is a fraction quicker everywhere, races get processional. The very breadth of dominance that made the V5 a marvel, factory and satellite bikes out front, was, from a rulemaker's chair, starting to look like a competition problem to be solved. The Grand Prix Commission, the body that writes the rules, made up of Dorna, the FIM, the Team's Association, and the Manufacturer's Association, had a decision to make. Slow the bikes down, or wait for the speeds to keep climbing until something unthinkable happened. Their answer, confirmed for 2007, cut engine capacity from 990 cubic centimeters down to 800. The stated reasons on the record were speed and safety, with a side note about cost, and about stopping a possible two-stroke comeback. Nothing in that announcement mentioned Honda. Nothing mentioned the V5 by name. And now I have to correct the version of this story you've probably heard. Including, honestly, the one this video's title implies. A lot of people will tell you that 2007 banned five-cylinders. It didn't. Read the actual 2007 rules and the truth is stranger. You could still run five-cylinders. You could run six. What changed was that the cylinder weight tax came roaring back. A four-cylinder bike could weigh 148 kilograms. A five now had to weigh 155.5. That three-cylinder Honda had exploited for five years. Suddenly it cost 7.5 kilos. And crush all of that into 800 cubic centimeters instead of 990. And the entire reason to build a five simply evaporated. So Honda didn't have their engine banned in 2007. It's worse than that and more elegant. The rules didn't kill the V5. They quietly took away every reason it had to exist. Honda chose a V4 for 2007 the way you choose. The only door that isn't locked. And the part that should make an engineer's jaw tighten. Whether or not anyone in that room was thinking about Honda, look who sat at the table. Every rival manufacturer was already building four cylinders or fewer. Not one of them had a single thing to lose from rules that penalized a fifth cylinder. Intent or coincidence. And there's no on-record proof it was intent. The outcome for the V5 was identical. It was finished as a competitive weapon. Honda's engineers hadn't been sitting still waiting for the axe either. That final 2006 V5, the redesigned NV5HG, was the most extensively reworked version the bike ever had. A shorter frame, a longer swing arm, a fully reconsidered fly-by-wire throttle. Every component hunted down for less rotating inertia. It was a V5 built with one eye already on the 800 cubic centimeters future it wasn't allowed to enter. Even as it won Nikki Hayden a world title in the present. And Honda knew exactly what they were losing. At the 2006 Japanese Grand Prix at Motegi, they did something almost unheard of in a paranoid secretive sport. They held a press conference and revealed the complete internals of the V5 to journalists. The masterpiece laid open on a table. You don't do that with a weapon you still intend to fight with. You do it with something you're saying goodbye to. Hayden's title in 2006 wasn't just a championship. It was a swan song. Whether anyone in that garage wanted to say the word out loud or not. But then 2007 arrived and Honda had to answer the question no manufacturer ever wants to face. How do you replace the best engine you've ever built on a deadline you didn't choose? Act 4. The replacement and the second kill. The answer was the RC212V. Same factory, same institutional genius, same people who'd built the most dominant bike of the decade. And almost none of it carried over cleanly. Forced into a V4 at just 800 cubic centimeters, Honda's new bike was, by most accounts from that season, difficult and unforgiving to ride. True to form, Honda treated the rule meant to slow the bikes down as a target rather than a limit. The 800, stripped of nearly 200 cubic centimeters against the old V5, was reported to still be making north of 220 brake horsepower. It didn't save them. Danny Pedrosa salvaged second in the 2007 championship, but he finished a long way behind the man who ran away with the year. And here is the twist. Because you couldn't script it better. The rider who humiliated Honda's new V4 that season was a lean, fearless, 21-year-old Australian named Casey Stoner. And he did it on a Ducati Desmosedici. A V4. The exact layout Honda had just been shoved into by the rulebook. Built better, by somebody else, and ridden into the ground by a kid in his second full season. Stoner won 10 races and the 2007 title. Honda reportedly went back to the drawing board. But then the story folds back on itself. Because that same Casey Stoner, the man who'd spent a season embarrassing Honda on a rival machine, later signed for Honda himself. And in 2011, on the very same RC212V platform that had floundered at launch, he won the world championship. It took four years, but the V4 Honda never wanted to build finally delivered a title. Just not the engine, and nowhere near the dominance that anyone in that garage had been chasing back in 2006. And now the part that should genuinely sting if you're the engineer who spent five years perfecting a 75.5 degree angle. Because 2007 was only the first kill. The second one was permanent. In December 2009, the Grand Prix Commission announced that for 2012, the class would grow back up. All the way to a full 1000 cubic centimeters. The exact displacement where a V5 had once thrived. For a heartbeat, on paper, the door was open again. But then they slammed it, and this time, they nailed it shut. Bolted onto those 2012 rules was a restriction MotoGP had never had in the four-stroke era. A hard maximum of four cylinders. Full stop. Plus, a maximum cylinder bore of 81 millimeters. For the first time, a five wasn't just uncompetitive. It was against the rules to build one at all. And watch what the whole grid did once that cap was in. It converged. Everyone drifted toward the same answer. The V4. Ducati had always run one. Honda went to one and never left. Suzuki, the same. And by the middle of this decade, even Yamaha, the last great believer in the inline four, the layout that carried Rossi to title after title, gave it up and switched to a V4 too. Think about that. The four-cylinder cap didn't just kill the five. Over 20 years, it quietly funneled the most technically ambitious motorsport on earth toward one narrow band of engine. Until the grid that once fielded threes, fours, and a five all fighting each other became, essentially, variations on a single idea. The blank sheet of paper from 2002 got smaller and smaller until there was only one sensible thing left to draw on it. So the true story isn't a single paragraph in 2007. It's a two-stage execution. In 2007, they took away the V5's reason to live. In 2012, when the engines that could have revived it finally came back, they made it flat out illegal. And that four-cylinder cap has never been reversed. Not in 2012. Not since. It is still in the rulebook today. And it is written into the 2027 regulations too, where the class drops to 850 cubic centimeters but keeps four cylinders, four-stroke, maximum. Nearly two decades, and the door has stayed bolted the entire time. Which means the RC211V isn't just retired, it is the last of its kind, permanently. Not because Honda chose to walk away, they never got the choice. Because for the best part of 20 years, building another one has simply not been allowed. For Honda, or for anyone. So where is the masterpiece now? Honda's works V5S are heritage pieces. The manufacturer's own property, preserved and occasionally wheeled out to run at demonstration events, the survivors kept as museum machines rather than sold off to collectors. Which individual chassis sits where is not something Honda publishes, and I'm not going to invent an answer for you. But the honest version is almost sadder than a tidy one. The winningest engine layout in MotoGP history now exists to be looked at, not raced. Because racing, it is illegal. And somewhere inside Honda Racing Corporation, there are almost certainly engineers who spent the best years of their careers on that 75.5 degree angle. Who solved a balance problem everyone said a 5 couldn't solve. Who watched their engine win three titles in five years, but then sat through a rules announcement that ended the whole project for reasons that had nothing to do with anything they'd built. There's no interview on record with any of them looking back on that moment, and I'm not going to pretend there is. But behind every spec sheet in this story were people who don't get a vote when a rulebook changes under their feet. Close, what if? So here's what I keep coming back to. Honda didn't lose to a better engine. Nobody out-engineered the RC211V on a racetrack in five years of trying. It went out on top, mid-dynasty, ended not by a rival, but by a paragraph, written in a room its own engineers weren't sitting in. Every other legendary engine in this sport got the dignity of being beaten. The screaming two-strokes were outrun by four-strokes. The big V4s were caught by rivals who built better ones. The V5 never was. It just quietly became illegal to build the next one. First pointless, then banned. So let me leave you with the questions I genuinely can't answer, and I want to hear yours in the comments. If that weight bracket loophole had stayed open, if the four-cylinder cap had never been written, and Honda had kept chasing that 75.5 degree angle for another 15 years, what does a MotoGP grid sound like today? Do we get V6s? Do we get sounds we've never heard? Or does the whole grid still converge on four? Because four was always the smart money, and the V5 was a beautiful one-time exploit of a mistake in the rulebook. And the one that really bites was 2007 about safety and cost. Exactly like they said, or was killing the V5 just a very convenient side effect that nobody in that room felt any need to prevent? Tell me what you think. I read the comments, and this is one I actually don't have a settled answer to. If you want the story of the engine Honda built before this one, the two-stroke that terrorized the last years of the 500cc class, and the big bang idea that ended up inside the V5 you just watched, that video's linked on screen right now, and it's the perfect next chapter. Subscribe so the next one finds you, because we've got a whole garage of these still to tell.