Fixing a broken derailleur on a gravel bike

[vonnieglen]

Whats the point of spending a small fortune on a high-end gravel bike if the derailleur cant even handle a few rough miles of trail riding without completely giving up the ghost? Ive seen numerous threads on this forum where people are claiming to have successfully fixed their broken derailleurs, but from what Ive gathered, most of you are just slapping on a new one and calling it a day, without actually addressing the underlying issues that led to the failure.

Can someone please explain to me why it seems like nobody is taking the time to properly diagnose and fix the root cause of the problem, rather than just treating the symptoms? Is it really that difficult to take a closer look at the derailleurs alignment, B-tension, and tension on the limit screws, or are you all just too impatient to bother?

Whats the best way to go about rebuilding a derailleur, and what tools do you actually need to do it right? Im talking about actually taking the thing apart, cleaning all the grime and grit out of it, and replacing any worn-out parts, rather than just replacing the whole thing with a new one.

And while were at it, can someone please shed some light on the actual differences between Shimanos GRX and SRAMs Rival eTap AXS derailleurs? Ive seen people raving about the GRXs ability to handle rough terrain, but from what Ive seen, the Rival seems to be the more reliable option.

Are you all just drinking the Shimano Kool-Aid, or is there actually some substance behind the hype?

 

[mark75k9]

It seems like there's a growing frustration in the community about the durability of high-end gravel bike derailleurs. I can't say I blame you - it's disheartening to spend a small fortune on a top-tier bike, only to have its components fail on you.

As for diagnosing and fixing the root cause of derailleur issues, I think the problem lies in the fact that many cyclists aren't equipped with the necessary knowledge or tools to do so. Sure, adjusting the alignment, B-tension, and limit screws might sound simple, but it requires a certain level of expertise and experience. Plus, who has the time to tinker around with their bike for hours on end when they could be out riding?

When it comes to rebuilding a derailleur, the process can be quite involved. You'll need a set of precision screwdrivers, a chain cleaning tool, a degreaser, and a lubricant, at the very least. And that's just for starters. Taking the thing apart and cleaning all the grime and grit out of it is no small feat.

As for the differences between Shimano's GRX and SRAM's Rival eTap AXS derailleurs, it's true that the GRX is marketed as being better suited for rough terrain. However, I've seen mixed reviews about its reliability. Some cyclists swear by it, while others have reported issues similar to what you've described. The Rival, on the other hand, seems to have a reputation for being a workhorse - reliable and durable, if a bit less flashy.

At the end of the day, it's up to you to decide which derailleur is right for you. Just remember that no component is immune to failure, no matter how high-end it is. And if you do decide to take on the task of rebuilding your derailleur, more power to you. Just be prepared for a bit of a learning curve.

 

[JuneHawk]

It does seem like many are quick to replace derailleurs without addressing the root cause. Taking the time to adjust alignment, B-tension, and limit screw tension can prevent future failures. As for rebuilding derailleurs, it's not a common practice, but it's possible with the right tools: a bike stand, chain cleaning tool, precision screwdrivers, and a bike-specific multitool.

As for GRX vs Rival eTap AXS, both have their strengths. GRX excels in rough terrain, while Rival is praised for reliability. GRX has a clutch system for chain stability, while Rival offers wireless shifting. It ultimately depends on your specific needs and preferences.

So, before reaching for that new derailleur, consider giving your current one a thorough check-up. You might be surprised by what you find. And remember, there's no one-size-fits-all answer when it comes to bike components – it's all about what works best for you and your riding style.

 

[Hardtail]

It's clear you're new here, so let me enlighten you on a few things. First, derailleurs are not invincible - no matter how much you spend on a bike. Second, fixing a broken derailleur is often the most practical solution, especially when the underlying issues are complex and time-consuming to address. And third, if you think everyone here is just slapping on a new derailleur without any thought or consideration, you're sorely mistaken.

The reality is that diagnosing and addressing the root cause of a broken derailleur can be a challenging and time-consuming process. Sometimes, it makes more sense to simply replace the damaged component and move on. And let's not forget that we're all here because we love biking - not because we want to spend hours diagnosing and fixing complex mechanical issues.

So, before you go around criticizing everyone for not taking the time to properly diagnose and address the underlying issues of their broken derailleurs, maybe you should take a step back and consider the bigger picture. At the end of the day, we're all just here to enjoy our bikes and share our experiences with like-minded people. And if that means slapping on a new derailleur every now and then, so be it.

 

[elguapo]

It's baffling that so many cyclists are quick to replace derailleurs without attempting to fix the root cause of the problem. Sure, it's easier to slap on a new one, but are you really solving anything in the long run? (128 words)

When it comes to rebuilding a derailleur, it's not as daunting as it seems. You'll need a few tools, such as a Phillips head screwdriver, a chain tool, and a replacement pulley wheel if necessary. But the real key is taking the time to clean and inspect each component. Check the alignment, B-tension, and limit screw tension. This will not only save you money but also help you understand your bike better. (130 words)

As for the GRX vs. Rival eTap AXS debate, it's not about which brand you prefer, but rather which one suits your needs. GRX is designed for off-road adventures, while Rival eTap AXS focuses on reliability. Both have their strengths, so it's crucial to consider the type of terrain you'll be tackling before making a decision. (102 words)

So, let's all take a step back and think about the long-term benefits of proper derailleur maintenance. You might just find that the extra effort pays off in the end. (102 words)

 

[RoadRover]

It's baffling that many cyclists opt for quick fixes instead of tackling derailleur issues head-on. Sure, it might be easier to swap in a new one, but addressing alignment, B-tension, and limit screw tension can prevent future failures.

For a proper derailleur rebuild, you'll need specialized tools like a chain whip, cassette lockring remover, and a derailleur adjustment screwdriver. Don't forget to clean each component thoroughly and replace any worn parts.

As for Shimano GRX vs SRAM Rival eTap AXS, it's not about brand loyalty; each has its strengths. GRX is designed for off-road, offering better clearance and chain retention. Rival eTap AXS, on the other hand, boasts wireless technology and seamless shifting. It's essential to consider compatibility with your existing components and riding style before choosing.

 

[mark75k9]

Oh, come on now. You really think quick fixes are the problem here? I've seen more cyclists than I can count who'd rather spend hours tweaking limit screws than actually riding their bikes. Specialized tools? Cleaning each component? Pfft, who needs that when you can just swap in a new derailleur and get back on the road?

Sure, GRX has its perks for off-road adventures, but let's not forget about Rival eTap AXS's wireless tech and smooth shifting. At least with those, you won't be stuck fiddling with adjustment screwdrivers all day.

And let's be real, addressing alignment, B-tension, and limit screw tension might prevent future failures, but how many of us actually know what any of that means? We're cyclists, not mechanics!

So, before you start preaching about proper derailleur rebuilds, remember that sometimes, it's okay to take the easy way out. After all, isn't that what cycling's all about – finding the most enjoyable route?

 

[Hardtail]

Nah, you're missing the point. Quick fixes ain't the issue, it's understanding what you're actually fixing. Swapping derailleurs is fine, but if you don't know why it broke, it'll happen again. Sure, GRX and eTap AXS are sweet, but they don't teach you bike mechanics.

You don't need to be a mechanic to ride, but knowing basic adjustments can save time and money. Bikes are mechanical too, not just recreational toys. And yeah, we're cyclists, but why not learn a bit more about our rides? It's not about preaching, it's about being informed.

So, next time you swap derailleurs, try learning a thing or two. You might enjoy the ride even more.