Honda CBR1000RR-R SP 2024 vs V4R 2023

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This might help decide found this with regard to what was mentioned earlier concerning the DAVC package for slicks...MUST BE!

PHOTO-2024-10-30-14-45-57.jpg
 
baggerman said:
BTW at some point i've measured (plates, pins) a stock Ducati 525. A 520 DID zvmx is stronger than a stock ducati 525. I do run 525's on the bikes I travel on, I'm lazy, so I pretty much ignore them until the loose versus tight part of the chain makes it unservicable. 520 everything else.
Click to expand...

Where are you getting specs for the DID 525HV3? It’s successor is the VX3 w tensile strength of 10k lbs while the 520 ZVMX has a tensile strength of 8700

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 logic is ....... retarded as the force of a chain is consistently spread across the pin/roller and not at a point halfway between the plates. Also there would be less pressure at the pin/roller-tooth interface of a 525 vs 520 because there’s more surface area.
 
andyb said:
This might help decide found this with regard to what was mentioned earlier concerning the DAVC package for slicks...MUST BE!

View attachment 57301
Click to expand...

Yeah my question about that with just the race cans, they say it’s for track use only and in a vague way elude that it comes with its own tune for DTC, DSC, and DWC…surely they would have in there a provision for slicks as the can is sold for track use only. Either Ducati has it in the tune for the race cans too but are being vague about that to steer you toward the full exhaust, or they are selling race cans on a bike they say can only be used on track but aren’t provisioning the software to use it on track.
 
Also I’m pricing out the HRC stuff and build list for the Fireblade SP.

To get it to close to a WSBK spec it’s about 20-25k on top of the 28k purchase price. To get it to Superstock 1000 spec that you could win races with if you are capable it’s about 10k.
 
Steven31371 said:
Also I’m pricing out the HRC stuff and build list for the Fireblade SP.

To get it to close to a WSBK spec it’s about 20-25k on top of the 28k purchase price. To get it to Superstock 1000 spec that you could win races with if you are capable it’s about 10k.
Click to expand...

That seems quite cheap?
 
SuperDomestique said:
Where are you getting specs for the DID 525HV3? It’s successor is the VX3 w tensile strength of 10k lbs while the 520 ZVMX has a tensile strength of 8700



This logic is ....... retarded as the force of a chain is consistently spread across the pin/roller and not at a point halfway between the plates. Also there would be less pressure at the pin/roller-tooth interface of a 525 vs 520 because there’s more surface area.
Click to expand...

Nope I measured it. Same pin size as the 520 slightly thinner plates but maybe I was measuring a different Ducati 525 chain. I agree with Andy there is a moment being applied at the midpoint of the pin/roller which would be greater on the 525. That why the pins of 525's are typically bigger diameter. Steel, unless hardened to the point that it can't, has some ductility therefore some bending under load. Both the pins and rollers deflect and I would expect a little lengthening of the side plates under load.
 
KarlKani said:
Here's a 24 SSTK bike for roughly 44k used

View attachment 57320
Click to expand...

Priced about right. And a hell of a bike.

Or maybe not as it’s a used test bike…you can build a new 2025 for not much more than that with those spec parts…maybe with Ktech or Ohlins though instead of Maxton… Maxton makes really good suspension components but in my experience, the customer service sucks and they don’t really want to supply anybody outside of the UK
 
baggerman said:
there is a moment being applied at the midpoint of the pin/roller
Click to expand...

The moment is irrelevant and incorrect term to use in this case. There’s no torque per se on the pins of the chain because the roller rolls around the pin. And 520 and 525 have the same pitch and roller/pin height. They’re the same chain basically except for width. Also the tensile strength of a chain is the amount of force needed to stretch/break the chain.

 
Last edited:
SuperDomestique said:
This moment would be higher on the 520 since it has smaller rollers/pins
Click to expand...

The moment is the same no matter. The distance to the midpoint on a 525 is wider there for the effective moment is greater. I may have not measured the one of which you speak. I had a stock 525 that was low mileage that I wanted to use on my 1098SF. I grabbed a zvmx 525 master and the pins were .015 inch bigger. The 525s wear better because as you say the bearing surface is larger.
 

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