Ducati Steps Away from Desmo - Moves to Springs

cjymiller

Well-known member
Ducati-V4-Granturismo-engine-04-scaled.jpg


https://www.asphaltandrubber.com/news/ducati-v4-granturismo-engine/

Perhaps the headline feature of the V4 Granturismo engine is its long service intervals (60,000 km, quoted by Ducati), which is due in large part to the touring-focused motor using a spring-valve system, rather than the typical desmodromic system that Ducati is so famous for utilizing.


...and they're getting rid of the trellis frame on the next Monster. What is a Ducati anymore?
 

R3DS!X

Whatever that means
Ducati died a long time ago IMO. The 1098 and street fighters of the time were the last of the real ducs. trellis, dry clutch, desmo, expensive and not know for reliability

MV Augusta seems to be the closest thing to what i remember ducs being. quirky but cool and desirable.
 

superhypered

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Ducati is just trying to appeal to a larger audience. People don't want to hear that their bike has an 8+ hour labor job plus parts every 8,000 miles. Extending the service intervals is a great way to sell more people on the bikes.

On that note, I hope KTM can also figure out some kind of alternative to it's valve check interval on the single cylinder bikes, after 600 miles on the street bikes, and after 1 hour on the dirt bikes. Customers hate learning about a huge service required right after buying their bike.
 

sckego

doesn't like crashing
Ducati is just trying to appeal to a larger audience. People don't want to hear that their bike has an 8+ hour labor job plus parts every 8,000 miles. Extending the service intervals is a great way to sell more people on the bikes.

On that note, I hope KTM can also figure out some kind of alternative to it's valve check interval on the single cylinder bikes, after 600 miles on the street bikes, and after 1 hour on the dirt bikes. Customers hate learning about a huge service required right after buying their bike.

Not just a KTM thing. My Honda CB500 twin had a valve service at 600 miles. :wow https://www.motorcyclenews.com/news/new-bikes/2013/july/jul0413-honda-cb500-valve-clearance-shock/
 
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superhypered

(╯°□°)╯ ლ(ಠ_ಠ ლ)
Not just a KTM thing. My Honda CB500 twin had a valve service at 600 miles. :wow https://www.motorcyclenews.com/news/new-bikes/2013/july/jul0413-honda-cb500-valve-clearance-shock/

Oh yeah, I'm sure we could go on for days with what different manufacturers do, however your link is for a 2013 model, is that what you had/have? (edit: saw your sig, 2015) At least for current models, a 2018 CB300 has a valve inspection at 16k miles, which is the same as the CBR600RR for example which is fantastic. And what some people may not realize is that most, if not all, of the Honda dirtbikes require a valve inspection after the break in period. However I have also heard about people not checking them until 100 hours and even then only one valve might need an adjustment. I just focus more on the KTM dirt bikes as I sold Hondas and KTM side by side, and red sticker did not stop people from buying KTM over Honda.
 
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superhypered

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Wait a second, I looked up service manuals for the cbr 300, 500, and 650 (2018), and the 300 and 650 are both listed at 16k miles for the first valve inspection, but the 500 is still 600 miles?! I wonder why that is.
 

berth

Well-known member
Man that sounds like a typo, honestly.

On a Honda, should have to do anything at 600 save pin it WFO.
 

superhypered

(╯°□°)╯ ლ(ಠ_ಠ ლ)
I will say that Honda does get a little weird with service intervals overall. For example, here is the service intervals for my cb1000r

https://www.manualslib.com/manual/790778/Honda-Cb1000r.html?page=101#manual

After the 600 mile break in period, it requires an oil change, thereafter it requires an oil change every 8k miles. I don't race my bike at all and mostly commute, but I am a spirited rider. Once I hit 2k miles, the oil is already black and a little low, so why would they say 8k miles? I'll at least change the oil alone every 2k, and the oil filter every other change.
 

redtail

only ones and zeroes
"If it looks like a Duc, acts like a Duc..." I'm still not buying another Ducati, I already had my turn in the barrel.
 

R3DS!X

Whatever that means
I will say that Honda does get a little weird with service intervals overall. For example, here is the service intervals for my cb1000r

https://www.manualslib.com/manual/790778/Honda-Cb1000r.html?page=101#manual

After the 600 mile break in period, it requires an oil change, thereafter it requires an oil change every 8k miles. I don't race my bike at all and mostly commute, but I am a spirited rider. Once I hit 2k miles, the oil is already black and a little low, so why would they say 8k miles? I'll at least change the oil alone every 2k, and the oil filter every other change.
Planned obsolescence?
 

superhypered

(╯°□°)╯ ლ(ಠ_ಠ ლ)
Planned obsolescence?

Maybe berth is right about it being a typo. I looked up the CMX300 and 500 owner's manuals to see what the intervals were in those bikes, and the valve inspection were both 16k miles. And the updated Rebel has the same motor as the CB and CBR models.

https://ownersmanuals2.com/honda/cmx300-a-2018-owners-manual-74963/page-48
https://ownersmanuals2.com/honda/cmx500-a-2018-owners-manual-74964/page-50

Idk I think something is just weird on the factory side of Honda, like my cb1000r has services listed every 2k miles, so when I took my bike in for it's 10k mile service, the shop told me it was actually every 4k miles. Ok, so why is the maintenance schedule in increments of 2k miles...
 

ichabodnt650

KLX300SM
Wait a second, I looked up service manuals for the cbr 300, 500, and 650 (2018), and the 300 and 650 are both listed at 16k miles for the first valve inspection, but the 500 is still 600 miles?! I wonder why that is.

Some models require a valve check at 600 mile (break-in) because the factory used less than stellar manufacturing facilities. They had poor quality control, so the company had the customer check the valves to make sure they were in spec. (on the customer's dime). I think some Thailand, India manufactured motorcycles were subject to this. They were lower price point models.
 

banshee01

Well-known member
Some models require a valve check at 600 mile (break-in) because the factory used less than stellar manufacturing facilities. They had poor quality control, so the company had the customer check the valves to make sure they were in spec. (on the customer's dime). I think some Thailand, India manufactured motorcycles were subject to this. They were lower price point models.

My wife bought a used 2014 cbr250r with 900 miles on it. They valves were supposed to be checked at 600 miles. The bike would like hiccup or skip a beat at idle sometimes. Other times it would shut off. I checked the valve clearances and the exhaust valves were pretty tight and out of spec. After that the bike idled great and never turned off again
 

superhypered

(╯°□°)╯ ლ(ಠ_ಠ ლ)
Some models require a valve check at 600 mile (break-in) because the factory used less than stellar manufacturing facilities. They had poor quality control, so the company had the customer check the valves to make sure they were in spec. (on the customer's dime). I think some Thailand, India manufactured motorcycles were subject to this. They were lower price point models.

I understand what you are saying, but what I was trying to point out was that the cbr500 was the odd one out with the early valve inspection according to the owners manual. The CMX500 of the same year (2018), with the same 500cc motor does not have the valve inspection until 16k miles, which makes me believe the cbr500 manual to be incorrect.
 
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