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[SDCVO]

I am not a big fan of lowers either for looks or summer riding but when I got my 17 i had no choice. When I took it to my tuner with the TTS he told me the twin cooled bikes ran much cooler and he has been tuning Harleys for years.
I will say that even in theses crazy hot temps we have been having in SoCal running in the low 100's my bike has run very cool. I did add the cool fan so not sure how much that has to do with it but many weekends I ride the 17 on Sat and the 12 (no lowers) on Sunday and even without the lowers the 17 runs way cooler. Maybe cool fan, maybe new M8 motor but for sure big difference. To be fair my 12 has a S&S 124 but I never felt a difference in heat between that motor and the 110.

[Scott7d]

Harley changed the liquid cooled heads on 2 bikes. The 2018 CVO Streetglide and and the 2018 Road Glide.  The Limited CVO remains liquid cooled.  I asked the Sales Manager at my local dealer why Harley would go to a bigger motor (117) in the Cvos and not add liquid cooling to all of them.  He stated that Harley seemed to think that the Streetglide CVO and the Road Glide CVO were around town bikes, while the Limiteds were designed for distance ....This led to more questions than answers as he tried to get me to trade my 2015 CVO Streetglide for a "deal" on a 2017 with an upgraded 117... I ride in average 20k per year, and both my 2012 RGU and my CVO run hotter around town in stop and go traffic, so I am unclear in this logic...

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I agree. I'd rather have the cooling on an "Around Town" bike than a touring bike. Never had a heat issue when going 75mph.

And SG/RG an around town bike.......wow 

[hotroadking]

I'm in the dump the radiators group, they are ugly, provide too much restriction of air flow to the rider, and it doesn't provide enough engine cooling to make up for the hot sweaty increase in body temp from reduced air flow that the lowers restrict.

Sign me up for no lowers and I have the 16 with them, would gladly remove them if I could without killing whats left of the warranty, If I had only followed my own intuition about them I'd have skipped buying a bike with them, thats what happens when you buy a bike in November LOL.

Ride one in FL in May to Sept and you understand why they literally suck the air out of your ride

[cvosjoe]

HD basically cheaped out.

1. For removing water cooling (all the expenses they saved right there)

2. For not adding a fan to the oil cooler (especially on the CVO models for christ sake)

Oil cooled 18 CVO SG & RG have the fan installed.

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[FLSTFI Dave]

I was under both a CVO RG and CVO SG yesterday,  Joe is 100% correct they both have the oil cooler, with a fan.

[mark]

I'm in the dump the radiators group, they are ugly, provide too much restriction of air flow to the rider, and it doesn't provide enough engine cooling to make up for the hot sweaty increase in body temp from reduced air flow that the lowers restrict.

Sign me up for no lowers and I have the 16 with them, would gladly remove them if I could without killing whats left of the warranty, If I had only followed my own intuition about them I'd have skipped buying a bike with them, thats what happens when you buy a bike in November LOL.

Ride one in FL in May to Sept and you understand why they literally suck the air out of your ride

I agree.  Either water cool the entire engine or stay with air cooling.  Having two radiators, two fans, hoses going everywhere, and being permanently committed to lowers year round, just to cool two exhaust ports isn't worth it.

[load97]

Oil cooled 18 CVO SG & RG have the fan installed.

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Well that’s good. A few people on here said they did not. Good to know, that HD is a little less cheap.

[grc]

Oil cooled 18 CVO SG & RG have the fan installed.

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Something obviously changed from the first information I saw.  How about the non-CVO bikes?  They need the fan too.

Jerry

[cvosjoe]

Something obviously changed from the first information I saw.  How about the non-CVO bikes?  They need the fan too.

Jerry

Didn't bother checking a non-CVO bike. They weren't on the 17 non-CVO models but I'll take a look next time I'm at the dealership.

[jsfenster110]

Just my 2 cents.  I have owned 6 Harleys.  The 2016 CVOSG is way cooler in and on Florida roads than any of the tuned RK 103 bikes I had.

I don't really know how restricted the airflow is but air is getting to the lowers where the radiators are.  I used to sit in traffic and feel like I was melting with my 2012 107 RGC and my tuned RK 103.  No contest.

[FLSTFI Dave]

I had a water cooled 15 CVO RG Ultra that I put 44K on and a water cooled 17 CVO Street glide I put 20,526 miles on.  I have 2819 miles on my 18 CVO RG.

The two water cooled bikes are cooler than the 18.  Did not notice much difference until I was in 85 degree heat, then I could feel more heat on my lower legs and right foot on the 18.

[cvosjoe]

I had a water cooled 15 CVO RG Ultra that I put 44K on and a water cooled 17 CVO Street glide I put 20,526 miles on.  I have 2819 miles on my 18 CVO RG.

The two water cooled bikes are cooler than the 18.  Did not notice much difference until I was in 85 degree heat, then I could feel more heat on my lower legs and right foot on the 18.

I agree with David. I have had three twin cooled bikes, two 110s and a 114. I now have a 18 CVO Street Glide and in 80 degree weather I feel more heat from the 18 than I did from the twin cooled in 90+ degree.

[load97]

My wife and I have noticed a decent difference in leg temp between our 14' 103 and our 17' 114 bikes.

[Pan1]

Just a theory--- the m8 has more overall valve seat area for heat to transfer into the head where the oil can effectively cool it.

[Powergod]

I like the water cooled but 7nderstand the desire to remove the lowers