Rear tire installed.

[javajaws]

205/60 r15 Quatrac

 

[K80Shooter]

205/60 r15 Quatrac

Thats disturbing new's.

 

[CloverHillCrawler]

Here is the tire rack link for the Riken Raptor HR ... https://www.tirerack.com/tires/tires.jsp?tireMake=Riken&tireModel=Raptor+HR&partnum=06HR5RHR&vehicleSearch=false&fromCompare1=yes

I have the Quatracs all the way around and are very happy them. I have the 205 60 15 on the back and it has about 20k on it with plenty of tread left and I am a pretty aggressive rider.

 

[CloverHillCrawler]

Also which Vredestrain are you running? I agree with Blueknight911 as all of the Vredestrain's have very good traction ratings.

According to the mechanic that did my alignment a couple of months ago after I installed my wilbers was cool with me having car tires on but he said that he felt that the Quatracs had too much of an aggressive tread for the Spyder.

When he had finished up with the alignment he was taking some test drives and didn't like the fact that even though everything was lined up but yet if he let go of the handlebar, the quatracs would follow the crown in the road due to the aggressive tread.

He said on roads with less of a crown it wasn't reacting as much but roads with more steeper crowns it was pulling the spyder right into it and felt a less aggressive tread would solve that problem. I am running 165/60/15 fronts and 205/60/15 rear.

He did a good job on the alignment, I have over 3k on it since he did it and I don't have the wear that I did with the first set of Quatrac's that were on the front.

 

[K80Shooter]

According to the mechanic that did my alignment a couple of months ago after I installed my wilbers was cool with me having car tires on but he said that he felt that the Quatracs had too much of an aggressive tread for the Spyder.

When he had finished up with the alignment he was taking some test drives and didn't like the fact that even though everything was lined up but yet if he let go of the handlebar, the quatracs would follow the crown in the road due to the aggressive tread.

He said on roads with less of a crown it wasn't reacting as much but roads with more steeper crowns it was pulling the spyder right into it and felt a less aggressive tread would solve that problem. I am running 165/65/15 fronts and 205/60/15 rear.

He did a good job on the alignment, I have over 3k on it since he did it and I don't have the wear that I did with the first set of Quatrac's that were on the front.

Thanks for this info. I'm about 99% positive that this is the tire that I will install when the time comes.

 

[CloverHillCrawler]

You will like them. And they are great in the rain. Until my trip last year I was dreading driving in the rain but with the Quatracs they were like pumps throwing water out of the side of the fenders.

I drove in downpours in the city at 30 and steady rain on the highway at up to 60-65 with a sure grip and no hydroplaning with the exception that the back tire was wanting to come out to the side at times while accelerating uphill through deeper water running off of the hills.

 

[BLUEKNIGHT911]

According to the mechanic that did my alignment a couple of months ago after I installed my wilbers was cool with me having car tires on but he said that he felt that the Quatracs had too much of an aggressive tread for the Spyder.

When he had finished up with the alignment he was taking some test drives and didn't like the fact that even though everything was lined up but yet if he let go of the handlebar, the quatracs would follow the crown in the road due to the aggressive tread.

He said on roads with less of a crown it wasn't reacting as much but roads with more steeper crowns it was pulling the spyder right into it and felt a less aggressive tread would solve that problem. I am running 165/60/15 fronts and 205/60/15 rear.

He did a good job on the alignment, I have over 3k on it since he did it and I don't have the wear that I did with the first set of Quatrac's that were on the front.

IMHO I say "hooey" to your mechanic. ...... good luck .... Mike :thumbup:

 

[EdMat]

You can have my Vredestein's when you pry my cold dead butt off the seat.

 

[CloverHillCrawler]

I didn't say they were bad, I love the grip. I was just pointing out what he had stated and judging by the results that I have received from his work, which has been great. I believe him.

Speaking of resistance from tread .... Now onto the new candidate which I just saw in my Google feed.... The Quatrac Pro EV designed for less resistance...

Manufacturer's description
First all-season tyre fully dedicated to electric vehicles.

Quatrac Pro EV is build to better cope with specificities of electric vehicles: higher weight, less noise, same safety standards

Extended range on electric and hybrid vehicles

15% Lower rolling resistance due to advanced compound materials
Designed for heavier EVs: 6% better handling and improved stability while cornering

Higher belt and tread stiffness; asymmetric tread features
No compromise on safety in any weather condition

Severe snow certified; 4% better dry braking

Notable Features

1 label class improvement on rolling resistance thanks to an optimised blend of 4th generation polymer and smart silica in the tread area. This also leads to improved snow performance, combined with a more balanced wet performance.

Updated set of body compounds – new rim cushion, base compound, and carcass compound – to reduce rolling resistance.

Lighter construction – thinner sidewalls, lower apex and leaner belt material and cap ply – all to reduce energy consumption when moving the vehicle.

17% lower environment impact of producing Quatrac Pro EV tyres contributing to lower lifecycle carbon impact.

Higher block stiffness due to sipe position and higher effective sipe length to cope with heavier weight of EVs while cornering. This improves handling stability by 6%.

Asymmetric tread features – like twice-as-steep outside flanks for the two outer longitudinal grooves - to brace against cornering forces for heavy EVs.

Outside shoulder is wider than the inside shoulder to improve dry and wet handling of the heavier EVs while turning.

2 ply construction on “High Load” marked sizes with increased sidewall stiffness to manage 10% higher load carrying (at same pressure).

3PMSF Severe Snow Certified; Full depth sipes enable more deformation of tread block and thus higher winter performance over the lifecycle.

4% better braking due to stiffer blocks and inter-connected bridges on the shoulders.

Higher silica loading in tread compound to retain superior performance on wet roads.

Acoustic comfort from increased number of pitches (both absolute number and different type of pitches) and AI-optimised pitch sequencing. 1 dB lower external noise due to this dampening.

5% better riding comfort due to lighter construction and higher flex zone in the sidewall area.

 

[BLUEKNIGHT911]

Tire rack has no info on the " PRO EV " ..... they do sell the PRO however only in sizes from 17" thru 22" ..... My comments were directed at / to your mechanic .... not you .....Mike :thumbup:

 

[CloverHillCrawler]

Tire rack has no info on the " PRO EV " ..... they do sell the PRO however only in sizes from 17" thru 22" ..... My comments were directed at / to your mechanic .... not you .....Mike :thumbup:

No worries, I knew it was coming. LOL

If I do need a front set in the future. Hopefully I won't for while, I would try these Quatrac Pro ev's out but with the Asymmetric tread features I would only run these on the front and stay with the Quatrac on the back.