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Making the move from Harley to Ducati - what to expect?

Started by DM426, October 14, 2014, 02:20:18 PM

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dbran1949

Warning physics nerd comment

I have ridden a number of Harleys and presently ride an 07 S4RS. Everyone else hare has described the differences so I don't need to reiterate. Just a comment on harley's low end torque which is always what you hear said about the venerable 45 degree v-twin.

What people are really experiencing is conservation of angular momentum, or flywheel inertia. Although it is true that Harleys typically reach  their torque peak at lower RPMs that really doesn't equate to "Plenty of low end torque" Plenty of torque results in acceleration, so plenty of torque more correctly describes the Ducati V=twin, which twists so hard it rotates the bike back over the rear wheel

DucHead

Quote from: SDRider on October 15, 2014, 06:54:50 AM
Than what?  A Ferrari?

My Camry Hybrid is way less expensive to operate than my Ducati.

You must be doing something wrong.
'05 S4R (>47k mi); '04 Bandit 1200 (>92k mi; sold); '02 Bandit 1200 (>11k mi); '97 Bandit 1200 (2k mi); '13 FJR1300 (1k mi); IBA #28454 "45"

Kev M

Quote from: dbran1949 on October 15, 2014, 02:48:28 PMWarning physics nerd comment

I have ridden a number of Harleys and presently ride an 07 S4RS. Everyone else hare has described the differences so I don't need to reiterate. Just a comment on harley's low end torque which is always what you hear said about the venerable 45 degree v-twin.

What people are really experiencing is conservation of angular momentum, or flywheel inertia. Although it is true that Harleys typically reach  their torque peak at lower RPMs that really doesn't equate to "Plenty of low end torque" Plenty of torque results in acceleration, so plenty of torque more correctly describes the Ducati V=twin, which twists so hard it rotates the bike back over the rear wheel
I'll accept your physics as you obviously know it better then do I.

However, one point of order, if you glance down the performance specs page of Motorcycle Consumer News you see the 30-something Ducatis tested over the past decade or so are rated at peak torque figures ranging from 37-86 ft lbs, with an average in the 50-60 ft lbs range and only the Diavel, Panigale, 1098S, and StreetFightet S even breaking into the 70+ range.

Now perform the same exercise for the Harleys the range is a slightly higher 42-86, with all but 3 bikes at 60+, and more then half at 70+.

And I wager those peaks are generally higher in the rpm range than with Harleys.

So I'm asking, aren't you ACTUALLY feeling that generally greater low rpm torque on the Harleys cause it's there?
Current Fleet

18 Guzzi V7III
16 FLHP (Police RK)
13 Guzzi V7
11 M696

SDRider

Quote from: DucHead on October 15, 2014, 03:23:36 PM
You must be doing something wrong.

Let's see, my Camry Hybrid averages about 38mpg, the Ducati around 35mpg.  I've done 6 oil changes on the Camry in 34,000 miles costing me a whopping total of $125.  I have 15,000 miles on the Ducati and I'm on my 3rd set of tires, 4th oil change, second valve adjustment and first belt change.

Yeah, I'm going to go ahead and stand by my statement.  Feel free to try to pick it apart if you want... good luck with that.   [thumbsup]
2014 Ducati Multistrada 1200 S
2012 Ducati Monster 1100 EVO (sold)

Bill in OKC

Quote from: Kev M on October 15, 2014, 04:42:56 PM
So I'm asking, aren't you ACTUALLY feeling that generally greater low rpm torque on the Harleys cause it's there?

I can't think of a better way to describe it.  Something about the weight of the Harley's front end - that torque pushes the bike forwards at low RPMs instead of lifting the front end (the dyno numbers don't count when you need to back off the throttle to keep from flipping an S4Rs)
'07 S4Rs  '02 RSVR  '75 GT550  '13 FXSB  '74 H1E  '71 CB750

koko64

2015 Scrambler 800

Kev M

Quote from: Bill in OKC on October 15, 2014, 11:28:29 PM
I can't think of a better way to describe it.  Something about the weight of the Harley's front end - that torque pushes the bike forwards at low RPMs instead of lifting the front end (the dyno numbers don't count when you need to back off the throttle to keep from flipping an S4Rs)

Well that's reasonable. I mean both the dyno readings AND the 1/4 mile times tell us the differences and results of the motor (and chassis) differences in the end. But there is that PUSH, that locomotive feeling of a Harley, which is part of the fun. It's completely different than the feeling of a Duc, and that's great too.

I like variety.

I don't eat the same thing every day, and I don't want to ride the same thing every day either.
Current Fleet

18 Guzzi V7III
16 FLHP (Police RK)
13 Guzzi V7
11 M696

SDRider

Quote from: Kev M on October 16, 2014, 05:47:51 AM
Well that's reasonable. I mean both the dyno readings AND the 1/4 mile times tell us the differences and results of the motor (and chassis) differences in the end. But there is that PUSH, that locomotive feeling of a Harley, which is part of the fun. It's completely different than the feeling of a Duc, and that's great too.

I like variety.

I don't eat the same thing every day, and I don't want to ride the same thing every day either.


Would be nice but I can't afford a garage full of motorcycles so I only have one.

I guess I'd rather eat pizza every day than hamburgers.  [wine]
2014 Ducati Multistrada 1200 S
2012 Ducati Monster 1100 EVO (sold)

Kev M

Quote from: SDRider on October 16, 2014, 07:21:22 AM
Would be nice but I can't afford a garage full of motorcycles so I only have one.

I guess I'd rather eat pizza every day than hamburgers.  [wine]

I love pizza - mmm, two of the ones we make on family pizza night would be:

Mushroom, caramelized onion, and bacon

and

Red pepper, garlic, and smoked Chorizo (sometimes with a Queso Blanco instead of Mozz).

MMMMMMMMMMMMMMMMMMMMM

But man, I also like my burgers too.

Often make them with a blend of meats including hot Italian sausage or a fresh chorizo.

You can add spices, cheeses and lots of other things to them.

As such, I don't want to give up my Pizza or Burgers...


...or HOT WINGS.... mmmmmmmmmm


Damnit - hungry now.
Current Fleet

18 Guzzi V7III
16 FLHP (Police RK)
13 Guzzi V7
11 M696

Bill in OKC

'07 S4Rs  '02 RSVR  '75 GT550  '13 FXSB  '74 H1E  '71 CB750

DarkMonster620

Carlos
I said I was smart, never that I had my shit together
Quote from: ducatiz on March 27, 2014, 08:34:34 AM
Ducati is the pretty girl that can't walk in heels without stumbling. I still love her.
"When you have eliminated all which is impossible, then whatever remains, however improbable, must be the truth."

HotIce

Quote from: Kev M on October 16, 2014, 07:40:36 AM
I love pizza - mmm, two of the ones we make on family pizza night would be:

Mushroom, caramelized onion, and bacon

and

Red pepper, garlic, and smoked Chorizo (sometimes with a Queso Blanco instead of Mozz).
Just to be clear, as far as Italy/USA compares. What you are describing here, has nothing to do with Italian pizza  ;D

SDRider

Quote from: Kev M on October 16, 2014, 07:40:36 AM
I love pizza - mmm, two of the ones we make on family pizza night would be:

Mushroom, caramelized onion, and bacon

and

Red pepper, garlic, and smoked Chorizo (sometimes with a Queso Blanco instead of Mozz).

MMMMMMMMMMMMMMMMMMMMM

But man, I also like my burgers too.

Often make them with a blend of meats including hot Italian sausage or a fresh chorizo.

You can add spices, cheeses and lots of other things to them.

As such, I don't want to give up my Pizza or Burgers...


...or HOT WINGS.... mmmmmmmmmm


Damnit - hungry now.

I can almost hear your arteries hardening through my computer monitor.  ;D
2014 Ducati Multistrada 1200 S
2012 Ducati Monster 1100 EVO (sold)

Kev M

Quote from: HotIce on October 16, 2014, 10:12:40 AM
Just to be clear, as far as Italy/USA compares. What you are describing here, has nothing to do with Italian pizza  ;D


Right, what I'm describing is better than what you'd get in Italy... at least that's what I remember from the last time I went.

Now if you want to talk about a nice traditional Risotto that's a different thing.



Quote from: SDRider on October 16, 2014, 11:36:49 AM
I can almost hear your arteries hardening through my computer monitor.  ;D

Meh, a little Simvastatin and a couple of 5k runs per week should help... 
Current Fleet

18 Guzzi V7III
16 FLHP (Police RK)
13 Guzzi V7
11 M696

koko64

With the Monster, be ready to turn at a thought. I came off luggin' Harleys around and went onto an M900. Nearly crashed on the first turn on the inside! [laugh]
2015 Scrambler 800