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Discussion Starter #1
I'm considering Nichols flywheel for my Hyper (I already have the termi slip on exhaust).

What are pros and cons of having a lighter flywheel?
 

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Duc ... Duc ... GOOSE!
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If you do a search you will find that your question has been answered many times over.

I love mine. :D
 

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Discussion Starter #4
Thank you guys! I searched the forum and I actually found many useful answers. Glad to hear you guys are happy with Nichols flywheel! I'll go talk to these guys today and see if I can get one.
 

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Nichols has good knowledgeable people and they make a quality item. I love my Nichols flywheel. Be sure to get their flywheel nut as the stock one is questionable. If you go in take a look at some of the damaged engine parts from the stock nuts coming loose. When it comes time for my major service I am taking my Hyper to them for the work.
 

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francesco ... everyone likes nichols, and their flywheels are great ... but not for everyone's riding style.

ciao a presto fratello.
 

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What do you mean not for everyone's riding style?
  • not everyone likes a motor with faster spin-up into the power-band.
  • not everyone likes a bike that accelerates quicker.
  • not everyone likes a bike that has less gyroscopic effect from the flywheel, so it turns in faster.

if your one of those people, then don't install a nichols flywheel.

if you like the above listed effects, then install a nichols flywheel.
 

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I haven't found one negative about my light flywheel. Only very fun positives!
 

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  • not everyone likes a motor with faster spin-up into the power-band.
  • not everyone likes a bike that accelerates quicker.
  • not everyone likes a bike that has less gyroscopic effect from the flywheel, so it turns in faster.

if your one of those people, then don't install a nichols flywheel.

if you like the above listed effects, then install a nichols flywheel.
-more chatter in the already rough drive train when feathering clutch+throttle at low speeds
-inability to maintain idle on cold startup

+revs up faster: goes vroom vroom rather than varoooooom varooom
+more responsive at any rpm
+when the bike is moving the first two negatives don't apply
 

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-more chatter in the already rough drive train when feathering clutch+throttle at low speeds
-inability to maintain idle on cold startup

+revs up faster: goes vroom vroom rather than varoooooom varooom
+more responsive at any rpm
+when the bike is moving the first two negatives don't apply

What about the increased engine braking upon closing the throttle? From what I've read, with the Nichols flywheel, it's quite drastic. I guess a slipper might help. I'd really like to know from someone who's tried several to get a better understanding.
 

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I was afraid 9 ounces would be too light, so for a less dramatic change, I didn't get the Nichols. By the advice of a mechanic at PI, and also in respect to the Evos flywheel weight, I had the stock flywheel shaven down (at Dad's shop, not Ducshop) to 2.5 pounds. Now, the bike leans over quicker/smoother/easier, and while cornering, the bike feels optimally nimble and more apt to Mi command. Response/engine braking feels "proper" ;D ... Idle/low-rpm handling I found unperturbed.
 

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  • not everyone likes a motor with faster spin-up into the power-band.
  • not everyone likes a bike that accelerates quicker.
  • not everyone likes a bike that has less gyroscopic effect from the flywheel, so it turns in faster.

if your one of those people, then don't install a nichols flywheel.

if you like the above listed effects, then install a nichols flywheel.
Hahahaha....well put and oddly true

Dave
 

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-more chatter in the already rough drive train when feathering clutch+throttle at low speeds
-inability to maintain idle on cold startup
the idle issue is a symptom of a combination of throttle bodies and air bleed screws not adjusted properly. get them adjusted, and the cold idle will not be an issue.


don't know about the chatter in drive train being a negative ... most owners like clutch chatter noise :rolleyes:
 

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-more chatter in the already rough drive train when feathering clutch+throttle at low speeds
-inability to maintain idle on cold startup

+revs up faster: goes vroom vroom rather than varoooooom varooom
+more responsive at any rpm
+when the bike is moving the first two negatives don't apply
Do you have one???

Because the rest of us that have answered this question actually do so I guess I was just trying to qualify your response.

So???

Dave
 
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