Rear sprocket solution 2024 V4R

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spooky said:
A Sitta (non-QC) is surely substantially less than $200… Even the quick change carrier with one sprocket is less than $300?
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Back on track!

So for clarity I am quoting YOU 🤔✊😂
If changing the rear sprocket was a once off job then great buy one at cheaper than a QR set up…
Unfortunately the reality is if you want to change ratios rather than just a whim cos you saw the big boys do it…then A QR carrier mean you can change several times and would you believe quickly, to accommodate your gearing requirements For the given circumstance you are at.

Of course you may need different chains too or you change it to go longer than std and work the eccentric adjustment in a different part of its arc for minimal disruption to the ride height 🤷🏼‍♂️
 
andyb said:
Back on track!

So for clarity I am quoting YOU 🤔✊😂
If changing the rear sprocket was a once off job then great buy one at cheaper than a QR set up…
Unfortunately the reality is if you want to change ratios rather than just a whim cos you saw the big boys do it…then A QR carrier mean you can change several times and would you believe quickly, to accommodate your gearing requirements For the given circumstance you are at.

Of course you may need different chains too or you change it to go longer than std and work the eccentric adjustment in a different part of its arc for minimal disruption to the ride height 🤷🏼‍♂️
Click to expand...

My point in the post you quoted was simply to tell the OP that there are good options that don’t cost the sort of money he had mentioned. It wasn’t a recommendation between QR and fixed. 👍

I could be thinking of someone else but I seem to recall that the OP only rides at a couple of tracks, so I’ve no idea if he needs a QR or not, but your points are obviously correct. It sounds like a pain in the backside but I guess worthwhile at a certain point.
 
Ceracarbon is "the" solution if you're running 520 and want to upgrade imo. What are you hoping to gain from a quick change sprocket, that is not already in the V4R gearing?
 
Astral11 said:
Ceracarbon is "the" solution if you're running 520 and want to upgrade imo. What are you hoping to gain from a quick change sprocket, that is not already in the V4R gearing?
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This is not a Starbux bike. It's on the track where you adjust gear ratio based on needs (straight length etc). It's not about how the sprocket looks. There are constant gear ratio changes on front and rear, from track to track.
 
Is changing the gearing on a 4-cycle 200+ HP bike really necessary? I can see maybe going down -1 in the front, but that's it. If you deviate from OEM gearing by more than that, you're going to have DQS problems.
 
bp_SFV4 said:
Is changing the gearing on a 4-cycle 200+ HP bike really necessary? I can see maybe going down -1 in the front, but that's it. If you deviate from OEM gearing by more than that, you're going to have DQS problems.
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Just as a technical note, I’m -1/+1 on my ‘21 V4SP to meet my “feel” preferences with no problem at all. In fact, all 5 of my bikes have -1 front and 4 of them +1 rear.
 
bp_SFV4 said:
Is changing the gearing on a 4-cycle 200+ HP bike really necessary? I can see maybe going down -1 in the front, but that's it. If you deviate from OEM gearing by more than that, you're going to have DQS problems.
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When a rider is 10 seconds slower per lap, then this is not an issue
 
@superbikecoach man you should've bought a kawasaki. I dont think youre technically gaining what you think you have..is there any video of these seconds you're gaining from the sprocket upgrade on your sp? Because technically there's a very limited amount of rear sprockets to choose from, and the 520 that comes stock on the R is already gold. Why don't you match what's installed on the SP for your use?

10 seconds for 1 sprocket tooth upgrade is GP territory if that's the only item change on a bike
 
OMG! This is NOT what I said. I did not say you gain 10 seconds. I said if you generally 10 seconds (or whatever) slower per lap, then sprocket ratios are not your issue. Try understanding this a little harder.
Riding on a track or let's say racing, is constant acceleration and one time top speed. That is depending on the longest straight, which varies from track to track. That's how to set the final ratio on front and rear. In racing we even have different transmission gears to find ideal torque ranges on specific sectors. I for sure don't need a Kawasaki to understand things, so please don't give me this crap.
 
I think Ducati has put exactly what you've said into a lot of thought, which is why the V4R has such aggressive internal gearing up to 16.5k. Youre correct you dont find yourself sitting in the higher end on straights, it's more of the short sprints going through lower to mid gears. I think that's why they recommend keeping the stock 520 because the transmission eats through anything, at the broad range of the 6 gears. A single sprocket for a specific sector is not going to outweigh what the engine is already capable enough, and also depending of the rider knowing how to manage the centrifugal torque the bike produces at high rpm. That's what I think negates the rear sprocket changes, it seems like marginal performance gain if any. I see the rear assembly as something to make more lightweight as a rotating assembly with less mass, the stock gearing and transmission has had a lot already put into it
 
Astral11 said:
I think Ducati has put exactly what you've said into a lot of thought, which is why the V4R has such aggressive internal gearing up to 16.5k. Youre correct you dont find yourself sitting in the higher end on straights, it's more of the short sprints going through lower to mid gears. I think that's why they recommend keeping the stock 520 because the transmission eats through anything, at the broad range of the 6 gears. A single sprocket for a specific sector is not going to outweigh what the engine is already capable enough, and also depending of the rider knowing how to manage the centrifugal torque the bike produces at high rpm. That's what I think negates the rear sprocket changes, it seems like marginal performance gain if any. I see the rear assembly as something to make more lightweight as a rotating assembly with less mass, the stock gearing and transmission has had a lot already put into it
Click to expand...

Alright son. I give up on you
 

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