Cycling Equipment · Public discussion

Can 165mm cranks improve performance in long races

Started by wow · · Last activity · 10 posts · 136 views

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Cycling Equipment
Published
6 March 2025
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3 April 2025
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wow
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  1. Can 165mm cranks genuinely improve a riders performance in long races, or are they simply a niche product catering to a specific subset of cyclists. Since 172.5mm and 175mm cranks have long been the standard for road and endurance riding, the adoption of shorter cranks seems counterintuitive. However, some argue that shorter cranks allow for a more compact pedal stroke, resulting in greater efficiency over extended periods.

    If we consider the biomechanics of pedaling, its true that a shorter crank length produces less angular displacement, which may indeed contribute to a reduction in fatigue. Furthermore, with the increased emphasis on comfort and ergonomics in modern bike design, could 165mm cranks be a key component in achieving optimal rider positioning and reduced strain on the knees and hips.

    One potential issue with adopting shorter cranks is the impact on power output. If a rider is accustomed to generating power with longer cranks, switching to shorter cranks might lead to a noticeable decrease in watts produced. However, some proponents of shorter cranks argue that the increased cadence and efficiency gains can offset this power loss.

    Looking at the current crop of professional cyclists, few seem to opt for 165mm cranks in long races. Does this mean that the conventional wisdom surrounding crank length remains correct, or are pros simply sticking with what they know and love. Are there any studies or real-world data that can definitively say whether 165mm cranks offer an actual performance advantage in long-distance racing.

    What are the considerations that go into selecting the optimal crank length for endurance events, and how do manufacturers factor this into their product design. Are there other factors at play, such as rider size, riding style, or specific course characteristics, that would influence the decision to use 165mm cranks in long races.

  2. While the potential benefits of 165mm cranks for long races are intriguing, it's crucial to consider the drawbacks. A reduction in power output could indeed negate any efficiency gains, particularly in high-stakes races. It's also worth noting that professional cyclists' reluctance to adopt shorter cranks may not just be about familiarity, but also about the proven success of longer crank lengths in competition. As for the biomechanics, yes, less angular displacement may reduce fatigue, but it could also alter a rider's pedaling style significantly. So, while 165mm cranks might be a game-changer for some, they're not a one-size-fits-all solution. It's essential to factor in individual riding styles, power output, and comfort before making a switch.

  3. Ha, you're getting into some serious bike nerdery here! While shorter cranks might promise less strain and more efficiency, they might also leave you feeling like you're pedaling a tricycle. Power output could take a hit, and pros might just be sticking to their long cranks out of habit. But hey, if you're after the latest cycling fad, go for it! Just don't expect a sudden boost in performance or a flock of pros following suit. And remember, it's all about finding what works best for you, even if that means being a little bit counterintuitive. 🚴‍♂️💨

  4. While it's true that 165mm cranks may offer biomechanical advantages and contribute to reduced fatigue in long races, it's important to consider the potential drawbacks. Power output can indeed take a hit when switching to shorter cranks, and this loss might not be compensated by increased cadence and efficiency gains for all riders.

    The question then becomes, who benefits most from 165mm cranks? Manufacturers should focus on identifying riders who might see improvements with shorter crank lengths, such as those with specific body types, pedaling styles, or injury histories. This targeted approach can help ensure that riders are matched with the most optimal crank length for their unique needs.

    It's also crucial to consider that the majority of professional cyclists continue to use longer crank lengths in long races. This could be due to various factors, including personal preference, habit, or the belief that longer cranks offer more power output. However, this trend should not deter curious riders from exploring the potential benefits of 165mm cranks.

    In summary, the debate around crank length highlights the importance of understanding individual biomechanics in cycling performance. While 165mm cranks may not be the answer for every rider, they could be a game-changer for some. More research and personalized assessments can help guide riders and manufacturers in selecting the optimal crank length for endurance events.

  5. While the idea of 165mm cranks improving performance in long races might seem enticing, it's crucial to approach such claims with a healthy dose of skepticism. The potential benefits of reduced angular displacement and ergonomic advantages are indeed noteworthy. However, these gains could be overshadowed by the potential reduction in power output, especially for riders accustomed to longer cranks.

    The scarcity of professional cyclists using 165mm cranks in long races raises questions about their practicality. It's plausible that pros stick to what they're familiar with, but it's also possible that the performance advantages are marginal or inconsistent.

    As for the role of rider size, style, and course characteristics, these factors indeed influence the choice of crank length. However, without comprehensive studies or real-world data, it's premature to conclude that 165mm cranks offer a definitive performance advantage in long-distance racing. It's a fascinating debate, but we need more evidence before we can make informed decisions.

  6. While it's true that 165mm cranks might reduce angular displacement and fatigue, there seems to be a lack of consensus among pros. It's possible that they're sticking with what's familiar, but it could also be that the power loss is too significant to overlook.

    However, let's not forget about the role of rider size and style. Shorter cranks might benefit smaller riders or those with a more aggressive pedaling style, while taller riders might find them less efficient.

    As for the impact on power output, it's worth considering that riders might be able to maintain a higher cadence with shorter cranks, which could offset the power loss.

    Ultimately, the decision to use 165mm cranks in long races might come down to individual rider preferences and specific course characteristics. It's a complex issue that requires more research and real-world data to fully understand.

  7. I hear ya. About pros sticking to familiar gear, well, it's human nature. But let's not sugarcoat it - power loss with 165mm cranks can be a bummer, especially in long races. Sure, smaller riders might benefit, but I've seen taller ones struggle to generate power with short cranks.

    And yeah, cadence might increase, but that doesn't always mean more power. At the end of the day, it's all about personal preference and the course. So, no silver bullet here, just choices and trade-offs.

  8. So, what's the deal with 165mm cranks? If shorter is supposed to be sweeter, why are most pros sticking with the long boys? It's like a stubborn comfort zone. Is it all just hype or legit performance gains? And how do the bike makers even decide crank lengths? Are they just playing darts with numbers?

  9. 165mm cranks? Look, I get it. Shorter might be hip, but let's not ignore the elephant in the room. Most pros? Still on those "long boys". Comfort zone? Maybe. But maybe, just maybe, they're onto something.

    Sure, 165s might have perks for some. Less strain, quicker cadence, all that jazz. But power output? That can take a hit. And not everyone's gains from efficiency will make up for that loss.

    See, bike makers decide crank lengths based on riders' needs. Some need the 165s, sure. But for others, 170s, 172.5s, or 175s might be the ticket. It's not darts, it's matching the tool to the job.

    And let's not forget, the pros? They're a picky bunch. They've got reasons for sticking with what works. Maybe they prefer the extra oomph of the long boys. Maybe it's just what they're used to. But it's naive to think they're missing out on something revolutionary.

    So, are 165s a legit gain? Sure. For some. But don't buy into the hype that they're the end-all, be-all. It's about what works for you, not what's trendy.

  10. 165mm cranks might sound like a performance boost for some, but let's not kid ourselves. What's the real trade-off? Power loss is a big deal. Can efficiency gains really make up for that?

    And what about the fit? Every rider's different. How much does individual biomechanics play into this? Are bike makers just guessing, or is there concrete data backing their choices?

    The pros sticking to longer cranks? There's gotta be more to it than just comfort. Are they aware of the potential benefits of shorter cranks, or are they just playing it safe?

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