Ducati Sporting Club UK > DesmoDue Race Series > DesmoDue - General Questions and Chat > No Modifications - what does it mean

[nogaromill998]

Not at all Tim, cheating should not be allowed. My understanding of the rules is that no mods are allowed to the crank, and as far as I can see balancing a crank is merely good practice, not cheating in anyway, as I have already said, it is absolutely bog standard in everyway, with no performance enhancement inferred or gained from just putting the thing together properly. I handed them a crank, 3 sets of rods and pistons and gudgeon pins, circlips piston rings etc and told them to balance the thing.

[Rattler]

Originally Posted by nogaromill998

Not at all Tim, cheating should not be allowed. My understanding of the rules is that no mods are allowed to the crank, and as far as I can see balancing a crank is merely good practice, not cheating in anyway, as I have already said, it is absolutely bog standard in everyway, with no performance enhancement inferred or gained from just putting the thing together properly. I handed them a crank, 3 sets of rods and pistons and gudgeon pins, circlips piston rings etc and told them to balance the thing.

No issues with the crank - but it sounds like Class B is the new Class A with a selection of engine parts available to create the best engine - nice work.

Part of the challenge and enjoyment for me of DD was creating and building a bike that was within the rules, but took advantage of any available advantages that could be had by applying the rules. Sounds like you've done that with the crank, by using OEM parts that best match (without any machining) to run as efficiently as possible.

My point was about the wheels, if riders are cheating (knowingly or otherwise) by using illegal wheels then they should be protested, or better still, a quiet word should be had with them to point out that they are outside of the rules if they don't run a 583 or 620 OEM wheels. Then they avoid getting protested (and paying out £s) and also avoid getting black-balled by the rest of the paddock.

Maybe its time to plan and run an early "this is what you can do to a DD bike and this is what you can't" session.

Or maybe as part of a FAQ list in the DD section?

Tim

[Lily]

Originally Posted by Rattler

No issues with the crank - but it sounds like Class B is the new Class A with a selection of engine parts available to create the best engine - nice work.

Part of the challenge and enjoyment for me of DD was creating and building a bike that was within the rules, but took advantage of any available advantages that could be had by applying the rules. Sounds like you've done that with the crank, by using OEM parts that best match (without any machining) to run as efficiently as possible.

My point was about the wheels, if riders are cheating (knowingly or otherwise) by using illegal wheels then they should be protested, or better still, a quiet word should be had with them to point out that they are outside of the rules if they don't run a 583 or 620 OEM wheels. Then they avoid getting protested (and paying out £s) and also avoid getting black-balled by the rest of the paddock.

Maybe its time to plan and run an early "this is what you can do to a DD bike and this is what you can't" session.

Or maybe as part of a FAQ list in the DD section?

Tim

ok... two questions..

how can you tell the difference in the wheels - is it obvious for numpties lke me?

second - I assume the wheel I got from you was kosher

[Rattler]

Originally Posted by Lily

ok... two questions..

how can you tell the difference in the wheels - is it obvious for numpties lke me?

second - I assume the wheel I got from you was kosher

I think its more of a 583 thing? But could be wrong. As the earlier wheels were a lot heavier than the later 620 Monster and Sport ones. I only ran 620 wheels on my 620 ( I don't know if the 916 type are any lighter than these anyway) - so the one I sold you is fine as its an original 620 wheel.

[nogaromill998]

As far as I am concerned I have no truck with cheating. As far as I am aware I have neither broken nor infringed any rules, neither have I gone against the spirit of DesmoDue. To harp on about keeping costs down is just nonsensical when you permit the use of plenty of non standard parts. EVERYTHING in my engine is standard, and within factory tolerance, as it was last year and will be next year. What I have had done is good assembly practice, no more no less.

[vespa]

Originally Posted by nogaromill998

Not at all Tim, cheating should not be allowed. My understanding of the rules is that no mods are allowed to the crank, and as far as I can see balancing a crank is merely good practice, not cheating in anyway, as I have already said, it is absolutely bog standard in everyway, with no performance enhancement inferred or gained from just putting the thing together properly. I handed them a crank, 3 sets of rods and pistons and gudgeon pins, circlips piston rings etc and told them to balance the thing.

That's what I understand. It's like putting balancing weights to the wheels then

[nogaromill998]

Very good analogy Alex, you are adding material there but it gives no performance advantage, just makes the wheel run correctly.

[skidlids]

But the wheel is not modified in any way by adding weights, it is just balanced and yes the same can apply to a complete crankshaft assembly, in that you can mix and match rods pistons etc to balance a crank without having to modify the crankshaft.
But few people resort modifying by drilling or grinding their wheels to acheive balance.
So back to the rule, it says No modification of the Crankshaft, It does not say no balancing of the crankshaft asembly by selecting matchingcomponents

As for 916 wheels as far as I know a 916 front wheel is no different from a 620 front wheel and as the rule says
1.6.5 Wheels

Wheels including diameter and rim width must remain as originally produced by Ducati since 1992 for the 600/620 bikes.
Front wheel 17” X 3.5”, Rear Wheel 17” X 4.5”

There is no issue with using a 620 front or rear wheel in a 583 and if the 748/916 front wheel is the same part as a 620 it can also be used.
Did they fit any 620s with 5 spokes as found in the 996, if not then I doubt these would be allowed

[paynep]

Originally Posted by skidlids

Did they fit any 620s with 5 spokes as found in the 996, if not then I doubt these would be allowed

Nope, not even the Capirex as standard - I've already checked.

Mind you, there are mag wheels listed in the DP catalog as suitable for the 620s - surely that complies with "originally produced by Ducati since 1992 for the 600/620 bikes.
Front wheel 17” X 3.5” " ?? Then I figured the 500quid would be better spent on improving ability through tracktime or Magners. Guess what I chose?

[skidlids]

Originally Posted by paynep

Nope, not even the Capirex as standard - I've already checked.

Mind you, there are mag wheels listed in the DP catalog as suitable for the 620s - surely that complies with "originally produced by Ducati since 1992 for the 600/620 bikes.
Front wheel 17” X 3.5” " ?? Then I figured the 500quid would be better spent on improving ability through tracktime or Magners. Guess what I chose?

Drinking Magners while riding around a track by any chance
Would explain a few things

Maybe the wording should be changed to "originally fiited by Ducati since 1992 for the 600/620 bikes