-
Nankang XR611 Rear 225/50R15 - fitted to RTL
Today was my 1st day with the Nankang XR-611. Some info that may be of use to someone.
Size
Bike
- 2017 RT Ltd with Kendas still on the front
Journey
- 300km with a mixture of highways, freeways, and city roads.
- No additional Cargo, just an afternoon ride.
- Rear Suspension set on Minimum (factory shocks)
Occupants
- Two Up (me 90kg, pillion 55 kg)
Speedometer accuracy
- Speedo now reads 4% lower than actual speed, down from from 3% with the Arachnid
Pressure
- 26 PSI down from 28 with the Arachnid
Ride
- I expected the stiffer construction of the tyre and sidewall to create a harsher ride which in some ways it did, but the heavier un-sprung weight (the tyre itself weighs 9.5 Kg) seems to counteract this. Even my pillion (Wife) noted the ride felt firmer but not harsh.
Handling General
- The tyre does not track the irregularities in the road like the Kenda or Arachnid
- Accelerating out of corners with a patchwork surface where the Kenda or Arachnid rear tyre would step out and skittle across the imperfections has gone.
- No additional over-steer was experienced, nor under-steer for that matter.
- The tyre feels much more confident on the road at higher speeds up to 130km/hr, and the Spyder itself is more confidence inspiring with the tyre.
- Sidewall roll - an improvement on the Arachnid gievn the lower pressure. The bike feels quite direct when swerving to miss objects on the road
- ABS - the back wheel appears to be able to share more of the breaking power when Hard stopping. In the place I like to test my cars and bikes the Kenda and Arachnid would skid, this did not happen with the Nankang
- Because I still have Kendas on the front I haven't measured any difference in stopping distance. I will get a stopping distance reading before sending them to their rightful home - the waste management facility.
Wet Weather
- Not tested, will report later
I have tried to communicate the types of things I would report when testing tyres on two wheels to my sponsor. I look forward to seeing and reporting what the tyre is like in the wet with things like grip, aquaplaning, braking and anything else I find. Hope it helps in your choice of tyre
Disclaimer
- You might get very different results but, at least these can serve as a guide to your tyre selection.
- Coming off Kenda to the Arachnid felt a big improvement, so coming from the Arachnid to the Nankang seems ....... um .....um .... chalk vs cheese, poorly made beer vs masterfully crafted beer...
-
Very helpful feedback. Thank you.
2014 RTL Platinum
-
Very Active Member
Oooh....
Thanks for the detailed information. And yet another tire to add to the list. Let us know how it works out down the road ....
Gene and Ilana De Laney
Mt. Helix, California
2012 RS sm5
2012 RS sm5 , 998cc V-Twin 106hp DIY brake and park brake Classic Black
-
I've heard the Vredestein is difficult to acquire 'down under' so maybe this will turn out to be a viable substitute for those folks.
2014 RTL Platinum
-
Last night saw me able to test the Nankang in the wet. We are going thru one of our East Coast Low weather patterns which means cold wind and lots of rain.
Size
225/50 R15.
Bike
2017 RT Ltd with Kenda's still on the front
Journey
- 170km with a mixture of Country back roads (read as "rough") and highways. I had traveled this road with a mixed group of Harley's, Adventure bikes, Triumph's and Classic Japanese Sports bikes in the same conditions during a day ride a few months ago and had a few "moments", this ride was a big contrast.
- No additional Cargo, just a nice night ride.
- Rear Suspension set on Maximum (factory shocks)
Occupants
One Up (me 90kg)
Pressure
26 PSI down from 28 with the Arachnid
Handling General
- Aquaplaning - At times there were good volumes of water either flowing across the road, or laying in indentations on the road. While the fronts would aquaplane the Nankang did not. There were occasions where I would ready myself expecting the rear to "float away" but it didn't. This was good given that on some of the back roads the road surface was just a white lined black space in front and no way to determine where water was laying or flowing until you hear the sound of water spraying from the tyres.
- Accelerating out of corners with a patchwork surface where the Kenda or Arachnid rear tyre would step out and skittle across the imperfections did not occur considering the conditions.
- The RTL with the Nankang provides a high level of confidence in the wet, hard breaking saw the tyre contributing much more to stopping on the road at speeds up to 100km/hr in these conditions.
- ABS - the front (Kenda's) loose grip far sooner than the rear in situations where the ABS cuts in, allowing the rear to be able to share more of the breaking power when Hard stopping.
Wet Weather
A massive improvement over the Arachnid, let alone the Kenda. The tyre just makes the RTL feel much more confident in dealing with poor conditions, and I found old habits of bracing myself in anticipation of a "underwear soiling moment" were unfounded.
The relationship between Nankang and Yokohama shows in the quality of this tyre, if only they made them for the front, don't worry though I am adding to my Xmas gift list letter to Santa as soon as I am done here.
Last edited by askitee; 08-30-2019 at 09:07 PM.
Reason: bullet points for readability
-
I also have the Nankang XR611 on my RT Ltd here in the UK, and found great grip in wet and dry conditions. I also have Nankangs on the front. I have recently fitted a new XR611 on the rear to replace the worn out XR611 that had done only just under 10,000 British miles (are they still different in the US.). The wear was pretty even over the surface and I used only 18 psi. How did you decide on 26 psi.
-
Very Active Member
Originally Posted by Flier Tuck
I also have the Nankang XR611 on my RT Ltd here in the UK, and found great grip in wet and dry conditions. I also have Nankangs on the front. I have recently fitted a new XR611 on the rear to replace the worn out XR611 that had done only just under 10,000 British miles (are they still different in the US.). The wear was pretty even over the surface and I used only 18 psi. How did you decide on 26 psi.
I can't speak to the Traction factor ….. however if you only 10,000 UK miles, that's not even as good as the original Kenda's …. My Michelin Hydro- Edge got 40,000 ( great traction US mi. ) before I considered swapping for a new tire …… Mike
-
Originally Posted by BLUEKNIGHT911
I can't speak to the Traction factor ….. however if you only 10,000 UK miles, that's not even as good as the original Kenda's …. My Michelin Hydro- Edge got 40,000 ( great traction US mi. ) before I considered swapping for a new tire …… Mike
You're not familiar with UK roads, Kendas give about 8k here. But the low pressure would account for much of the low mileage.
-
Very Active Member
-
Originally Posted by Flier Tuck
I also have the Nankang XR611 on my RT Ltd here in the UK, and found great grip in wet and dry conditions. I also have Nankangs on the front. I have recently fitted a new XR611 on the rear to replace the worn out XR611 that had done only just under 10,000 British miles (are they still different in the US.). The wear was pretty even over the surface and I used only 18 psi. How did you decide on 26 psi.
Hi Flier Tuck,
It was originally just a starting point, but has worked so well so far that I haven't moved off 26psi. I was looking for a balance between sway from sidewall flex vs not having the rear end jar me each time it encountered a pothole.
When I get to do a dry long distance run one up, I'll provide another report for those interested.
I haven't tried with my 622 trailer either yet, that happens in October.
-
Ha, I see PRP has beaten me to it!
-
Active Member
I haven't been able to find any supplier for this size in the US. UK, yes. Down under, yes. US, no. Anyone have any info where to find that size in this country?
-
Originally Posted by Baron14y
I haven't been able to find any supplier for this size in the US. UK, yes. Down under, yes. US, no. Anyone have any info where to find that size in this country?
https://nankangusa.com/
They have some other rubber that looks ok too
-
Active Member
Originally Posted by askitee
Looked up the website. In the 225/50 size, they only show 16", 17", & 18" rims.
-
Originally Posted by Baron14y
Looked up the website. In the 225/50 size, they only show 16", 17", & 18" rims.
Contact them via one of their contact channels and ask them why aren't they available in the USA. Ask others who may be interested to do the same, you just might find they bring some in to see how they trade.
Because I work for myself I do this often when a product isn't available her in Australia, 8 out of 10 times they say no, but its worth a try.
-
I've had time to test the Nankang in the dry and on long journeys. Sorry for those waiting..
Size
225/50 R15.
Bike
2017 RT Ltd with Kenda's still on the front
Occupants
One Up (me 90kg) and at times two up ( wife 60kg)
Pressure
26 PSI down from 28 with the Arachnid
Handling General
The tyre has been excellent in all situations. The increased grip and stability certainly make a difference to the way the bike handles in the rear end, plus overall.
I had the bike in for a service and rode home on a 160km stretch of road favored by the boy racers (hot mix winding road) . The tyre seems to allow the rear end to contribute more to hard braking and is more stable accelerating out of corners something that would see the rear chatter and step out.
One very interesting thing - the drive belt harmonics have changed too. On the freeway my RTL would vibrate at around 118 to 125km/hr and I'd increase the rear ride height to lessen it. The vibration at those speeds and above has now almost gone - I can only assume that the poor quality Kenda's/Arachnids contribute more to the rear end vibration than I 1st thought. Picture in your own mind the swing arm bouncing in response to a slightly out of round tyre, this being transmitted through to the drive belt which is longer than some Hawaiian highways and it starts to make sense.
-
Active Member
Last edited by redrazor; 07-27-2020 at 02:37 PM.
Reason: Add to original post
-
Active Member
Originally Posted by redrazor
I've searched every tire supplier I can ..... and nobody carries this size in that Nankang XR-611 model tire.???!!!???
Would the Kumho Ecsta in the same size be a good alternative???
I just ordered the Kumho Ecsta AST AL in a 225/50/R15 from Tire Rack ($93.00)
-
Very Active Member
2020 RTL SE6
Previously 2008 GS SM5 and 2014 RT SE6
-
Originally Posted by KX5062
It's an Ozzie thing.
Yep we have even fewer options than you have!
-
For those who have/had the Nankangs are you still happy with them?
For the front were you able to source 165x55x15 in Nankang?
I would like to ditch the front Kendas especially at this stage as they are the easiest to remove from the bike for fitting.
Did you consider Achilles ATR-K Economist? Went to a local tyre shop and they said Achilles would be worse than the Kendas, hard to believe after reading so much on here.
Thanks
-
Originally Posted by glennm
For those who have/had the Nankangs are you still happy with them?
For the front were you able to source 165x55x15 in Nankang?
I would like to ditch the front Kendas especially at this stage as they are the easiest to remove from the bike for fitting.
Did you consider Achilles ATR-K Economist? Went to a local tyre shop and they said Achilles would be worse than the Kendas, hard to believe after reading so much on here.
Thanks
Hi Glenm - I didnt look at that brand, but did look at others. The fact Nankang worked with Yokohama kind of swayed me a bit towards them.
I have clocked up 17000kms on the Rear and the fronts are wearing nicely (evenly, no scalloping)
-
Great thanks askitee sounds like a good option.
-
Fronts are AS-1's 165/55R15
Northern NSW ? I'm hunter valley
-
Thanks askitee
I am Tweed Heads area so right at the border. Cross each day for work.
Found a local place that can get Nankangs although they are currently out of stock. The Kendas aren't worn out so I can wait for the Nankangs to come in.
Not sure I want to tackle pulling the rear off but will have to soon otherwise I can only get the Kenda back on if I go to a dealer.
Tags for this Thread
Posting Permissions
- You may not post new threads
- You may not post replies
- You may not post attachments
- You may not edit your posts
-
Forum Rules
|