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I did my own first service which was really just an oil change, cleaning and lubing chain and giving it a good visual check. The dealership where previous owner bought the bike was going to charge $270 plus parts, which they said was only going to be an oil change and just checking over...

Congrats on getting an RC390. They are so much fun, Ive owned many bikes and this one is very addicting to ride. I bought my 2018 RC390 with 49 miles, no decel pop. I looked at and test rode 4 RC390’s 17-20. Only one had decel pop, but it sounded like maybe they removed a baffle from the...

I just recently installed a PCV with wideband O2 (auto tune) on my stock 2018 RC390. I bought it second hand. Its mapped for a bike with air filter, cat delete and Akra pipe. Will it be okay for my stock bike? Does the autotune adjust fuel map as I ride regardless of what’s been programmed...

Haha oh man just realized this post is last year, whata newb

Sick! I just joined recently and got my 2018 a month ago. So much fun!!!

Thanks, I’m stuck with the pvc and wideband auto tune programmed to 13.5 afr for the closed loop. Hope its not too hard to install.

Also I took my RC390 out today even though I’m suppose to stay off the bike 4weeks for doctors orders. I weigh 165, and tried going over all bumps and tracks etc.. compared to dirt bikes it’s not plush but feels normal for a sport bike. There are times it feels a little bouncy on bumpy roads...

I agree with that 100% I’m horrible as I think since the 24 years I’ve ridden I’ve owned at least 24 bikes sport, dirt, cruiser, dual sports looking for that perfect unicorn. I don’t think it exists. Closest I got to one is the bmw gs1200 except it’s just so heavy off road. Now the RC390 is...

So I just got my PCV, BMC filter and wideband o2. I purchased it from FB market from someone close by who bought it from Hard Racing but never installed. Of course after posting here I look up the rapid bike evo and see one on eBay for half what I paid for my set up. From the sounds of it...

I looked into the rapid bike evo and did some reading in the Duke forum. So looks like this will do exactly what the PCV and wideband O2 will do. My guess it’s a cleaner install since I wouldn’t have to keep the old O2 sensor plugged in tucked out of the way.

The KT303 has preload, rebound and compression adjustability, while the nitron and matris are only preload and rebound. As a street rider and maybe 3-5 track days a year, is having compression adjustability significantly better?

Wow just looked at the Nitron on MNNTHBX. I may have to save up for this one.

$5799 sounds like a deal. I sold my weestrom and ninja250 to get the new/used RC390 last month. I was going to wait for 2022 model but my local dealer said they don’t know if they will even get any in March because of supply chain shortages affecting manufacturing.

I’ve had my RC390 for a month, bought it used with 49miles on it, I’m at 768 now. When I run WOT or ride aggressively lights start flashing and screen says CAN BUS ABS failure. Something like that since it’s so hard to read the LCD. Only has happened 3 times. I guess it hasn’t worried me...

That’s a bummer, sorry you’re going through that.

Hi folks, I been reading and re reading lots of thrreads. I got a 2018 with 49miles , first owner bought it in 2020 as a leftover model, rode it for a track day and kept it in their living room for a year until I picked it up. Did my best to keep it under 7500rpms riding up and down a twisty...

I’m curious as how did everything turn out?