Honda CBR1000RR-R SP 2024 vs V4R 2023

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Here’s a thing… hold a match between your thumb and forefinger then try to dnap it in the middle
Now hold half the match same way and try to snap that!

520 narrow match stronger than a 525 full match!
 
SuperDomestique said:
Also comparing GP riders to CIV is apples and oranges. There’s a reason GP riders are in GP;they’re the best of the best. Aliens. CIV is for those that couldn’t cut any other higher series like Moto2, WSBK, WSS, BSB, even MA. It’s like a step above high-level club racing. Sure CIV riders are fast to you and me but these riders would also consider GP riders fast. Just look at how Luca Salvadori enjoyed and was amazed riding with GP riders at WDW and getting dropped by them
Click to expand...

How about Pirro in CIV SBK, he is of MotoGP level right (altho by now he is extremely old) ?

1730100444519.png
 
andyb said:
Here’s a thing… hold a match between your thumb and forefinger then try to dnap it in the middle
Now hold half the match same way and try to snap that!

520 narrow match stronger than a 525 full match!
Click to expand...

This is the problem with trying to rely on practical experience...

You obviously need some help with google.

Click this link 525VX3

Then click this link 520VX3

And now tell the forum what each ones' tensile strength is...

Then tell us the difference between the chain life index is. Which one is higher?

So if one is stronger and gives better longevity, which one would you do for a track day where less maintenance and durability are more important than 0.5 lb in weight?
 
SuperDomestique said:
You do realize that a 525 chain is better for trackdays than a 520? They last significantly longer for a marginal weight penalty.

1.6 mm in chain/sprockets width is the least of your problems. Age and decrepit mess is what you need to be concerned about
Click to expand...

There is about 600gms of rotating weight to be saved off stock if you go the 520 lightweight sprocket route, its all rotating mass which is worth many more kilos of sprung weight in terms of performance, but for our bikes and track days its unnecessary to change unless you want a nice little project or think an extra .001 of a second is worth it.
andyb said:
Here’s a thing… hold a match between your thumb and forefinger then try to dnap it in the middle
Now hold half the match same way and try to snap that!

520 narrow match stronger than a 525 full match!
Click to expand...

Lucky you are not using chains to light your joints, the wider chain wears better which is why tourers often have 530. Tensile strength is not the issue, moreover racing chain does not have o-rings so it's a PITA for a road user. For track, you just run what you brung because it's not going to make any difference unless you intend to win the the day by the aforementioned .001 of a second
 
Paul G said:
There is about 600gms of rotating weight to be saved off stock if you go the 520 lightweight sprocket route, its all rotating mass which is worth many more kilos of sprung weight in terms of performance, but for our bikes and track days its unnecessary to change unless you want a nice little project or think an extra .001 of a second is worth it.


Lucky you are not using chains to light your joints, the wider chain wears better which is why tourers often have 530. Tensile strength is not the issue, moreover racing chain does not have o-rings so it's a PITA for a road user. For track, you just run what you brung because it's not going to make any difference unless you intend to win the the day by the aforementioned .001 of a second
Click to expand...

Tensile strength does matter especially when you're a fat .... like andy
 
Paul G said:
There is about 600gms of rotating weight to be saved off stock if you go the 520 lightweight sprocket route, its all rotating mass which is worth many more kilos of sprung weight in terms of performance, but for our bikes and track days its unnecessary to change unless you want a nice little project or think an extra .001 of a second is worth it.


Lucky you are not using chains to light your joints, the wider chain wears better which is why tourers often have 530. Tensile strength is not the issue, moreover racing chain does not have o-rings so it's a PITA for a road user. For track, you just run what you brung because it's not going to make any difference unless you intend to win the the day by the aforementioned .001 of a second
Click to expand...

Nothing wrong with doing it of course and saving some rotating mass is never a bad thing. Plenty of 520 chains have o-rings. It's probably harder to find a 520 that's a race-spec chain without o-rings than it is to find a 520 chain with o-rings.
 
SuperDomestique said:
Wouldn’t go out of my way to change it. It’s also not going to make or break thing
Click to expand...

Paul G said:
There is about 600gms of rotating weight to be saved off stock if you go the 520 lightweight sprocket route, its all rotating mass which is worth many more kilos of sprung weight in terms of performance, but for our bikes and track days its unnecessary to change unless you want a nice little project or think an extra .001 of a second is worth it.


Lucky you are not using chains to light your joints, the wider chain wears better which is why tourers often have 530. Tensile strength is not the issue, moreover racing chain does not have o-rings so it's a PITA for a road user. For track, you just run what you brung because it's not going to make any difference unless you intend to win the the day by the aforementioned .001 of a second
Click to expand...

I wouldn't run a 520 if I had a choice because the 525's do last longer. That being said these are way easier on chains than the twins (and rear tires in normal use). It's the 50hp whack versus the 100hp one.
 
baggerman said:
I wouldn't run a 520 if I had a choice because the 525's do last longer. That being said these are way easier on chains than the twins (and rear tires in normal use). It's the 50hp whack versus the 100hp one.
Click to expand...

For a track bike a 520 surely lasts long enough. I understand that some are running on a tighter budget than others but even so…
 
Are we talking about changing a $70 sprocket every 6 months instead of 8 months being a deciding point on what pitch sprocket to get?

I run 520’s…reduced rotating mass makes a huge difference that you can actually FEEL on sport bikes regardless of lap times. Spending $70 every 6 months versus every 8 months makes no difference in my life whatsoever.

I’ve done 15 track days on 520 aluminum sprockets without enough wear to force a change of sprocket.
 
Steven31371 said:
We are talking about changing a $70 sprocket every 6 months instead of 8 months being a deciding point on what pitch sprocket to get?

I run 520’s…reduced rotating mass makes a huge difference that you can actually feel on sport bikes. Spending $70 every 6 months versus every 8 months makes no difference in my life whatsoever.

I’ve done 15 track days on 520 aluminum sprockets without enough wear to force a change of sprocket.
Click to expand...

Hilarious that it’s even a point of discussion. :rolleyes:
 
spooky said:
For a track bike a 520 surely lasts long enough. I understand that some are running on a tighter budget than others but even so…
Click to expand...

Sorry, but you really don’t know the real facts about what you’re saying. I’ve converted all 5 of my bikes to 520 for a real feel performance advantage. My 21 V4SP comes stock with a 520 so I added a SuperLite carrier and aluminum sprocket. My 2015 CBR Repsol SP came with a 530 setup that is several pounds heavier than the 520 setup I put on it, aluminum sprocket. My 11 1198SP came with an 525 setup, but has been running a 520 setup with aluminum sprocket since shortly after new. Unless you’re a no-maintenance squid who beats the .... out of the bike, does drop-clutch drag starts or burnouts, and lets it sit in the weather 24-7, a 520 setup is worlds better. You can say otherwise, but be wrong. Just sayin’
 
SBK-SP said:
Sorry, but you really don’t know the real facts about what you’re saying. I’ve converted all 5 of my bikes to 520 for a real feel performance advantage. My 21 V4SP comes stock with a 520 so I added a SuperLite carrier and aluminum sprocket. My 2015 CBR Repsol SP came with a 530 setup that is several pounds heavier than the 520 setup I put on it, aluminum sprocket. My 11 1198SP came with an 525 setup, but has been running a 520 setup with aluminum sprocket since shortly after new. Unless you’re a no-maintenance squid who beats the .... out of the bike, does drop-clutch drag starts or burnouts, and lets it sit in the weather 24-7, a 520 setup is worlds better. You can say otherwise, but be wrong. Just sayin’
Click to expand...

I think you quoted the wrong person… 🫣
 
Steven31371 said:
Are we talking about changing a $70 sprocket every 6 months instead of 8 months being a deciding point on what pitch sprocket to get?

I run 520’s…reduced rotating mass makes a huge difference that you can actually FEEL on sport bikes regardless of lap times. Spending $70 every 6 months versus every 8 months makes no difference in my life whatsoever.

I’ve done 15 track days on 520 aluminum sprockets without enough wear to force a change of sprocket.
Click to expand...

It’s not the cost of materials. It’s the cost of time. My time must be worth more than yours 😜
 
SuperDomestique said:
It’s not the cost of materials. It’s the cost of time. My time must be worth more than yours 😜
Click to expand...

I doubt it, but, even so it’s a 10 minute job every 6 months (at worst) versus the same 10 minutes every 8 months it’s still not enough of a factor to really be a deciding point IMHO. Neither is ‘will it make you faster’. How it feels though, that’s a different story.
 
SBK-SP said:
Sorry, but you really don’t know the real facts about what you’re saying. I’ve converted all 5 of my bikes to 520 for a real feel performance advantage. My 21 V4SP comes stock with a 520 so I added a SuperLite carrier and aluminum sprocket. My 2015 CBR Repsol SP came with a 530 setup that is several pounds heavier than the 520 setup I put on it, aluminum sprocket. My 11 1198SP came with an 525 setup, but has been running a 520 setup with aluminum sprocket since shortly after new. Unless you’re a no-maintenance squid who beats the .... out of the bike, does drop-clutch drag starts or burnouts, and lets it sit in the weather 24-7, a 520 setup is worlds better. You can say otherwise, but be wrong. Just sayin’
Click to expand...

With the exception of using them to travel. I don't really take care of my chains. I clean and lube them every 4-6 K miles so I'm sorta a low maintenance squid chain wise. The 525s last longer when they're being ignored. But on everything else I have its 520.
 
Meh. Chain/sprocket weight differences are marginal and the effect you feel is most likely placebo. 2-3 lbs of rotational weight that centered close to the axle isn't going to make a noticeable difference. Has anyone done a 525 to 520 conversion and not changed gearing at the same time? And then has anyone got real world data that shows a significant decrease in lap times? Because if you haven't then you're talking out your butthole just as much as I am
 

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