while driving a
(255/45 R20) on
Accelera Iota R20 Iota-1 & Iota- st68
The Iota have 2 different types of tread the Iota-1 and the Iota- st68. http://www.acceleratireusa.com/ made by EPtires in Indonesia (not china)
I bought a Q5 sline+ with the chunker Iota-1 on it and was surprised at how good & quiet they were for a non premium tire. No issues with steering, ride and grip. Also they looked good on the car. Only slight negative was fuel economy witch youâ€™d expect with the chunky tread. Unfortunately this vehicle was written off after a stolen car rammed into the side of it at 65mph. I went and brought another Q5 sline+ as I consider this car saved mine & my familyâ€™s life.
This one had Michelin lattitudes on it 4-5mm tread. I immediately felt the difference the car felt more prone to movement and absolutely hated white lines causing the car to skate. Ride was pretty good and I know the grip was there but I just wasnâ€™t as confident driving on these tires. I didnâ€™t like them. I have recently changed the tires to Iota- st68. Thought id give them ago as I couldnâ€™t easily find the Iota-1. They also have a more normal summer tread for fuel eco. And are amazing cheap compared to the Â£250 premium per corner.
The Iota- st68 have massively improved the driving on normal roads, no skating on white lines or veering, grip seems good. No real under/over steer. However this is at ride cost. I found this really not much of an issue on normal roads & quite like the feel of the road, but on the motorway there is more shaking on bad road surfaces. The Iota- st68 are defiantly much stiffer on the side wall, maybe this may soften slightly in time to give a better motorway ride. Indecently the rubber on the tires feels fairly soft & they had a 68db sticker on them and they are quiet to go with that, another reason for buying. Both Iota treads have all season written on them however, looking at the tread pattern I doubt the st68 actually are. The Iota-1 may offer more winter traction. I drove these on wet grass a few times no issues. The ST-68 Braking doesnâ€™t seem as good as the Michelins but maybe thatâ€™s expected also im possibly driving faster with more confidence now. Thereâ€™s also the new tire breaking in factor where you need to get rid of the mould lubricant. Both my sline Q5 had standard suspension (Code 1BA) rather than sports (1BE) I would suggest the Iota- st68 are too stiff for sports suspension considering I have standard and if you do a lot of motorway driving I would necessarily recommend them at the moment however fuel eco is very good.
All in all for the price the Iota is very good in either pattern depending on requirements. If you want premium then I wouldnâ€™t recommend the old Michelins, but they have just brought out the Lats 3 which donâ€™t have a smooth centre tread so may overcome the issues of its predecessor. I hear Bridgestoneâ€™s are too hard, but good year eff-grip are somewhere in the middle so these maybe the best all-round suited Q5 tire and theâ€™re OEM as well. Hope this has been some help but realise it may be no help at all!!