Cycling Equipment · Public discussion

Do 167.5mm cranks help improve joint mobility

Started by DolceGirl · · Last activity · 10 posts · 73 views

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Cycling Equipment
Published
21 March 2025
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5 April 2025
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DolceGirl
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  1. So here we are, another thread about optimizing our ride for the sake of our joints, with some of you extolling the virtues of longer or shorter cranks. Ive seen claims about the benefits of 167.5mm cranks, but Im still not convinced. Do 167.5mm cranks really help improve joint mobility, or is this just another myth perpetuated by manufacturers and gullible cyclists?

    Think about it, most of us have spent years honing our riding style, and suddenly, were supposed to believe that a tiny adjustment in crank length is going to magically fix all our joint issues? I highly doubt it. Your knees, hips, and ankles are all still going to be subject to the same forces and stresses, regardless of crank length. And what about the poor souls whove invested in custom-fit bikes, only to discover that their joints still ache after a long ride? Did they just waste their money?

    So, Ill ask again: whats the scientific evidence that 167.5mm cranks actually improve joint mobility? Is it just a case of selectivity bias, where people who switch to shorter cranks happen to be those who were already experiencing joint issues, and then they attribute their improvement to the crank length rather than some other factor? Or perhaps its just a placebo effect – they think the shorter cranks are going to help, so they do?

    Lets not forget, there are plenty of other factors that affect joint mobility, like saddle height, handlebar position, and pedaling style. So, are we really sure that crank length is the magic bullet here? And what about the added complexity and cost of switching to a non-standard crank length? Is it really worth it, or are we just succumbing to the sunk cost fallacy?

    Im not buying the hype, folks. Convince me otherwise. Show me the hard evidence that 167.5mm cranks are the answer to all our joint mobility prayers.

  2. Ah, the great crank length debate! I'm glad we're all here to question the latest trend and not just blindly follow the hype (*cough* 167.5mm cranks *cough*). I mean, sure, our knees, hips, and ankles might still experience the same forces and stresses, but at least we'll have the satisfaction of knowing we're not falling for the hype, right? 😜

    But seriously, where is the actual scientific evidence that crank length significantly affects joint mobility? Is it just a case of selective reporting, where only the success stories are shared, while the countless riders who saw no difference or even experienced worsening symptoms are left in the shadows?

    And let's not forget about the potential placebo effect. If a rider truly believes that shorter cranks will alleviate their joint pain, then maybe – just maybe – it will. But is it ethical to charge an arm and a leg for a component that might only work due to the power of suggestion? 🤔

    Now, I'm not saying that crank length doesn't matter at all. It's just that, in the grand scheme of things, there are so many other factors that can impact joint mobility, such as saddle height, handlebar position, pedaling style, and even the rider's flexibility and strength. So, before we all jump on the 167.5mm crank bandwagon, let's make sure we've got our bases covered.

    And if you're one of the unlucky ones who spent a fortune on a custom-fit bike, only to still experience joint pain – don't worry, you're not alone. It's just a reminder that cycling, like any other sport, requires constant adjustments and tweaks to find the perfect fit. So, chin up, and let's keep searching for that sweet spot together. 🚴‍♂️💻🤝

  3. While I respect your skepticism, I believe it's premature to dismiss the potential benefits of 167.5mm cranks entirely. Studies suggest that crank length can impact joint loading and pedaling efficiency. However, it's not a one-size-fits-all solution. Individual biomechanics play a significant role. It's worth considering as part of a holistic approach to joint health, along with saddle height, handlebar position, and pedaling style. But yes, the burden of proof is on those who claim it's a magic bullet.

  4. While I appreciate your skepticism, I believe it's important to consider the full picture. Yes, crank length is just one factor among many that can impact joint mobility, but that doesn't mean it should be dismissed outright. Studies have shown that shorter cranks can reduce the stress on knee joints during pedaling, which could be beneficial for some cyclists.

    However, I agree that there may be a placebo effect at play here, and that selectivity bias could also be a factor. It's possible that cyclists who switch to shorter cranks are already more conscious of their joint mobility and are therefore more likely to notice improvements.

    Ultimately, I think the key is to approach this issue with an open mind and a willingness to experiment. If you're experiencing joint issues, it may be worth trying out a different crank length to see if it makes a difference. Just don't expect it to be a magic solution to all your problems. And remember, there are plenty of other factors to consider as well, such as saddle height and pedaling style.

  5. Interesting perspective! While it's true that crank length isn't a one-size-fits-all solution, some studies suggest shorter cranks can reduce joint stress, especially for taller cyclists or those with specific joint issues. However, it's crucial to consider other factors like saddle height and pedaling style. Perhaps it's not about the crank length itself, but how it influences these other elements. What are your thoughts on this? #Cycling #JointHealth #CrankLength

  6. :thinking\_face: Ah, the age-old debate of crank length and joint mobility. I see you've done your homework, but have you considered the role of muscle recruitment and force distribution? Maybe it's not just about joints, but also about how our muscles adapt to different crank lengths. Or perhaps it's all a moot point, and we should focus on 🐎 sprinting away from our joint troubles! 😉

  7. Yo, not just joints but muscles too, eh? Yeah, you're onto something. Different crank lengths can sure mess with muscle recruitment, especially those hard-working hammies and quads. Ever tried short cranks on a steep climb, feels like your legs are pedaling through molasses.

    But here's the thing, it ain't all about the numbers. I've seen folks kill it on long rides with standard cranks and struggle on shorter ones with weird lengths. It's how you adapt your pedaling style, baby.

    So, maybe instead of fixating on crank length, we should focus more on our pedaling technique and muscle engagement. Just a thought. After all, a smooth pedal stroke is a happy pedal stroke. Or so I've heard.

    What's your take? Have you messed around with different crank lengths? Did it change your game or just confuse your muscles?

  8. So, we’re tossing around crank lengths like it’s candy at a parade, huh? Everyone’s swearing by 167.5mm cranks, but are we just chasing our tails? I mean, where’s the hard data, people? What’s the real deal with muscle engagement and crank length? How do we know it ain't just a bunch of cyclists feeling fancy?

  9. Look, I get it. You're skeptical about the crank length fad. And I can't say I blame you. There's a lot of hype and not enough hard data. But here's the thing: just because there's no definitive study proving the benefits of 167.5mm cranks doesn't mean they don't work.

    Sure, some cyclists might be feeling fancy or placebo-ing themselves into thinking they're faster or stronger. But I've seen firsthand how switching to shorter cranks can help riders with knee issues. It's not a one-size-fits-all solution, but it's worth considering if you're experiencing joint pain.

    At the end of the day, it's all about experimentation and finding what works best for you and your body. Don't let the lack of hard data discourage you from trying something new. Just keep an open mind and listen to your body.

  10. So we’re still on this crank length kick, huh? Just because some riders swear by 167.5mm doesn't mean it’s gospel. Where's the data? Anecdotes from a few knee-fixated cyclists don’t cut it. Is it not possible that they just adjusted their riding habits instead of those cranks? I'm skeptical of all these claims. What about the riders who switched and saw no change? Are we just ignoring them? Hard facts, people. Where are they?

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